mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 15:20:58 +07:00
Merge branch 'master' into for-next
Sync with Linus' tree to be able to apply patch to a newer code (namely drivers/gpu/drm/gma500/psb_intel_lvds.c)
This commit is contained in:
commit
972c5ae961
5
CREDITS
5
CREDITS
@ -514,6 +514,11 @@ S: Bessemerstraat 21
|
||||
S: Amsterdam
|
||||
S: The Netherlands
|
||||
|
||||
N: NeilBrown
|
||||
E: neil@brown.name
|
||||
P: 4096R/566281B9 1BC6 29EB D390 D870 7B5F 497A 39EC 9EDD 5662 81B9
|
||||
D: NFSD Maintainer 2000-2007
|
||||
|
||||
N: Zach Brown
|
||||
E: zab@zabbo.net
|
||||
D: maestro pci sound
|
||||
|
75
Documentation/ABI/stable/sysfs-bus-xen-backend
Normal file
75
Documentation/ABI/stable/sysfs-bus-xen-backend
Normal file
@ -0,0 +1,75 @@
|
||||
What: /sys/bus/xen-backend/devices/*/devtype
|
||||
Date: Feb 2009
|
||||
KernelVersion: 2.6.38
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
The type of the device. e.g., one of: 'vbd' (block),
|
||||
'vif' (network), or 'vfb' (framebuffer).
|
||||
|
||||
What: /sys/bus/xen-backend/devices/*/nodename
|
||||
Date: Feb 2009
|
||||
KernelVersion: 2.6.38
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
XenStore node (under /local/domain/NNN/) for this
|
||||
backend device.
|
||||
|
||||
What: /sys/bus/xen-backend/devices/vbd-*/physical_device
|
||||
Date: April 2011
|
||||
KernelVersion: 3.0
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
The major:minor number (in hexidecimal) of the
|
||||
physical device providing the storage for this backend
|
||||
block device.
|
||||
|
||||
What: /sys/bus/xen-backend/devices/vbd-*/mode
|
||||
Date: April 2011
|
||||
KernelVersion: 3.0
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
Whether the block device is read-only ('r') or
|
||||
read-write ('w').
|
||||
|
||||
What: /sys/bus/xen-backend/devices/vbd-*/statistics/f_req
|
||||
Date: April 2011
|
||||
KernelVersion: 3.0
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
Number of flush requests from the frontend.
|
||||
|
||||
What: /sys/bus/xen-backend/devices/vbd-*/statistics/oo_req
|
||||
Date: April 2011
|
||||
KernelVersion: 3.0
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
Number of requests delayed because the backend was too
|
||||
busy processing previous requests.
|
||||
|
||||
What: /sys/bus/xen-backend/devices/vbd-*/statistics/rd_req
|
||||
Date: April 2011
|
||||
KernelVersion: 3.0
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
Number of read requests from the frontend.
|
||||
|
||||
What: /sys/bus/xen-backend/devices/vbd-*/statistics/rd_sect
|
||||
Date: April 2011
|
||||
KernelVersion: 3.0
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
Number of sectors read by the frontend.
|
||||
|
||||
What: /sys/bus/xen-backend/devices/vbd-*/statistics/wr_req
|
||||
Date: April 2011
|
||||
KernelVersion: 3.0
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
Number of write requests from the frontend.
|
||||
|
||||
What: /sys/bus/xen-backend/devices/vbd-*/statistics/wr_sect
|
||||
Date: April 2011
|
||||
KernelVersion: 3.0
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
Number of sectors written by the frontend.
|
77
Documentation/ABI/stable/sysfs-devices-system-xen_memory
Normal file
77
Documentation/ABI/stable/sysfs-devices-system-xen_memory
Normal file
@ -0,0 +1,77 @@
|
||||
What: /sys/devices/system/xen_memory/xen_memory0/max_retry_count
|
||||
Date: May 2011
|
||||
KernelVersion: 2.6.39
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
The maximum number of times the balloon driver will
|
||||
attempt to increase the balloon before giving up. See
|
||||
also 'retry_count' below.
|
||||
A value of zero means retry forever and is the default one.
|
||||
|
||||
What: /sys/devices/system/xen_memory/xen_memory0/max_schedule_delay
|
||||
Date: May 2011
|
||||
KernelVersion: 2.6.39
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
The limit that 'schedule_delay' (see below) will be
|
||||
increased to. The default value is 32 seconds.
|
||||
|
||||
What: /sys/devices/system/xen_memory/xen_memory0/retry_count
|
||||
Date: May 2011
|
||||
KernelVersion: 2.6.39
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
The current number of times that the balloon driver
|
||||
has attempted to increase the size of the balloon.
|
||||
The default value is one. With max_retry_count being
|
||||
zero (unlimited), this means that the driver will attempt
|
||||
to retry with a 'schedule_delay' delay.
|
||||
|
||||
What: /sys/devices/system/xen_memory/xen_memory0/schedule_delay
|
||||
Date: May 2011
|
||||
KernelVersion: 2.6.39
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
The time (in seconds) to wait between attempts to
|
||||
increase the balloon. Each time the balloon cannot be
|
||||
increased, 'schedule_delay' is increased (until
|
||||
'max_schedule_delay' is reached at which point it
|
||||
will use the max value).
|
||||
|
||||
What: /sys/devices/system/xen_memory/xen_memory0/target
|
||||
Date: April 2008
|
||||
KernelVersion: 2.6.26
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
The target number of pages to adjust this domain's
|
||||
memory reservation to.
|
||||
|
||||
What: /sys/devices/system/xen_memory/xen_memory0/target_kb
|
||||
Date: April 2008
|
||||
KernelVersion: 2.6.26
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
As target above, except the value is in KiB.
|
||||
|
||||
What: /sys/devices/system/xen_memory/xen_memory0/info/current_kb
|
||||
Date: April 2008
|
||||
KernelVersion: 2.6.26
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
Current size (in KiB) of this domain's memory
|
||||
reservation.
|
||||
|
||||
What: /sys/devices/system/xen_memory/xen_memory0/info/high_kb
|
||||
Date: April 2008
|
||||
KernelVersion: 2.6.26
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
Amount (in KiB) of high memory in the balloon.
|
||||
|
||||
What: /sys/devices/system/xen_memory/xen_memory0/info/low_kb
|
||||
Date: April 2008
|
||||
KernelVersion: 2.6.26
|
||||
Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
Description:
|
||||
Amount (in KiB) of low (or normal) memory in the
|
||||
balloon.
|
@ -66,6 +66,24 @@ Description:
|
||||
re-discover previously removed devices.
|
||||
Depends on CONFIG_HOTPLUG.
|
||||
|
||||
What: /sys/bus/pci/devices/.../msi_irqs/
|
||||
Date: September, 2011
|
||||
Contact: Neil Horman <nhorman@tuxdriver.com>
|
||||
Description:
|
||||
The /sys/devices/.../msi_irqs directory contains a variable set
|
||||
of sub-directories, with each sub-directory being named after a
|
||||
corresponding msi irq vector allocated to that device. Each
|
||||
numbered sub-directory N contains attributes of that irq.
|
||||
Note that this directory is not created for device drivers which
|
||||
do not support msi irqs
|
||||
|
||||
What: /sys/bus/pci/devices/.../msi_irqs/<N>/mode
|
||||
Date: September 2011
|
||||
Contact: Neil Horman <nhorman@tuxdriver.com>
|
||||
Description:
|
||||
This attribute indicates the mode that the irq vector named by
|
||||
the parent directory is in (msi vs. msix)
|
||||
|
||||
What: /sys/bus/pci/devices/.../remove
|
||||
Date: January 2009
|
||||
Contact: Linux PCI developers <linux-pci@vger.kernel.org>
|
||||
|
@ -119,6 +119,31 @@ Description:
|
||||
Write a 1 to force the device to disconnect
|
||||
(equivalent to unplugging a wired USB device).
|
||||
|
||||
What: /sys/bus/usb/drivers/.../new_id
|
||||
Date: October 2011
|
||||
Contact: linux-usb@vger.kernel.org
|
||||
Description:
|
||||
Writing a device ID to this file will attempt to
|
||||
dynamically add a new device ID to a USB device driver.
|
||||
This may allow the driver to support more hardware than
|
||||
was included in the driver's static device ID support
|
||||
table at compile time. The format for the device ID is:
|
||||
idVendor idProduct bInterfaceClass.
|
||||
The vendor ID and device ID fields are required, the
|
||||
interface class is optional.
|
||||
Upon successfully adding an ID, the driver will probe
|
||||
for the device and attempt to bind to it. For example:
|
||||
# echo "8086 10f5" > /sys/bus/usb/drivers/foo/new_id
|
||||
|
||||
What: /sys/bus/usb-serial/drivers/.../new_id
|
||||
Date: October 2011
|
||||
Contact: linux-usb@vger.kernel.org
|
||||
Description:
|
||||
For serial USB drivers, this attribute appears under the
|
||||
extra bus folder "usb-serial" in sysfs; apart from that
|
||||
difference, all descriptions from the entry
|
||||
"/sys/bus/usb/drivers/.../new_id" apply.
|
||||
|
||||
What: /sys/bus/usb/drivers/.../remove_id
|
||||
Date: November 2009
|
||||
Contact: CHENG Renquan <rqcheng@smu.edu.sg>
|
||||
|
@ -0,0 +1,12 @@
|
||||
What: Attribute for calibrating ST-Ericsson AB8500 Real Time Clock
|
||||
Date: Oct 2011
|
||||
KernelVersion: 3.0
|
||||
Contact: Mark Godfrey <mark.godfrey@stericsson.com>
|
||||
Description: The rtc_calibration attribute allows the userspace to
|
||||
calibrate the AB8500.s 32KHz Real Time Clock.
|
||||
Every 60 seconds the AB8500 will correct the RTC's value
|
||||
by adding to it the value of this attribute.
|
||||
The range of the attribute is -127 to +127 in units of
|
||||
30.5 micro-seconds (half-parts-per-million of the 32KHz clock)
|
||||
Users: The /vendor/st-ericsson/base_utilities/core/rtc_calibration
|
||||
daemon uses this interface.
|
34
Documentation/ABI/testing/sysfs-devices-platform-docg3
Normal file
34
Documentation/ABI/testing/sysfs-devices-platform-docg3
Normal file
@ -0,0 +1,34 @@
|
||||
What: /sys/devices/platform/docg3/f[0-3]_dps[01]_is_keylocked
|
||||
Date: November 2011
|
||||
KernelVersion: 3.3
|
||||
Contact: Robert Jarzmik <robert.jarzmik@free.fr>
|
||||
Description:
|
||||
Show whether the floor (0 to 4), protection area (0 or 1) is
|
||||
keylocked. Each docg3 chip (or floor) has 2 protection areas,
|
||||
which can cover any part of it, block aligned, called DPS.
|
||||
The protection has information embedded whether it blocks reads,
|
||||
writes or both.
|
||||
The result is:
|
||||
0 -> the DPS is not keylocked
|
||||
1 -> the DPS is keylocked
|
||||
Users: None identified so far.
|
||||
|
||||
What: /sys/devices/platform/docg3/f[0-3]_dps[01]_protection_key
|
||||
Date: November 2011
|
||||
KernelVersion: 3.3
|
||||
Contact: Robert Jarzmik <robert.jarzmik@free.fr>
|
||||
Description:
|
||||
Enter the protection key for the floor (0 to 4), protection area
|
||||
(0 or 1). Each docg3 chip (or floor) has 2 protection areas,
|
||||
which can cover any part of it, block aligned, called DPS.
|
||||
The protection has information embedded whether it blocks reads,
|
||||
writes or both.
|
||||
The protection key is a string of 8 bytes (value 0-255).
|
||||
Entering the correct value toggle the lock, and can be observed
|
||||
through f[0-3]_dps[01]_is_keylocked.
|
||||
Possible values are:
|
||||
- 8 bytes
|
||||
Typical values are:
|
||||
- "00000000"
|
||||
- "12345678"
|
||||
Users: None identified so far.
|
9
Documentation/ABI/testing/sysfs-driver-hid-multitouch
Normal file
9
Documentation/ABI/testing/sysfs-driver-hid-multitouch
Normal file
@ -0,0 +1,9 @@
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/quirks
|
||||
Date: November 2011
|
||||
Contact: Benjamin Tissoires <benjamin.tissoires@gmail.com>
|
||||
Description: The integer value of this attribute corresponds to the
|
||||
quirks actually in place to handle the device's protocol.
|
||||
When read, this attribute returns the current settings (see
|
||||
MT_QUIRKS_* in hid-multitouch.c).
|
||||
When written this attribute change on the fly the quirks, then
|
||||
the protocol to handle the device.
|
135
Documentation/ABI/testing/sysfs-driver-hid-roccat-isku
Normal file
135
Documentation/ABI/testing/sysfs-driver-hid-roccat-isku
Normal file
@ -0,0 +1,135 @@
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/actual_profile
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: The integer value of this attribute ranges from 0-4.
|
||||
When read, this attribute returns the number of the actual
|
||||
profile. This value is persistent, so its equivalent to the
|
||||
profile that's active when the device is powered on next time.
|
||||
When written, this file sets the number of the startup profile
|
||||
and the device activates this profile immediately.
|
||||
Users: http://roccat.sourceforge.net
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/info
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: When read, this file returns general data like firmware version.
|
||||
The data is 6 bytes long.
|
||||
This file is readonly.
|
||||
Users: http://roccat.sourceforge.net
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/key_mask
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: When written, this file lets one deactivate certain keys like
|
||||
windows and application keys, to prevent accidental presses.
|
||||
Profile number for which this settings occur is included in
|
||||
written data. The data has to be 6 bytes long.
|
||||
Before reading this file, control has to be written to select
|
||||
which profile to read.
|
||||
Users: http://roccat.sourceforge.net
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/keys_capslock
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: When written, this file lets one set the function of the
|
||||
capslock key for a specific profile. Profile number is included
|
||||
in written data. The data has to be 6 bytes long.
|
||||
Before reading this file, control has to be written to select
|
||||
which profile to read.
|
||||
Users: http://roccat.sourceforge.net
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/keys_easyzone
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: When written, this file lets one set the function of the
|
||||
easyzone keys for a specific profile. Profile number is included
|
||||
in written data. The data has to be 65 bytes long.
|
||||
Before reading this file, control has to be written to select
|
||||
which profile to read.
|
||||
Users: http://roccat.sourceforge.net
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/keys_function
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: When written, this file lets one set the function of the
|
||||
function keys for a specific profile. Profile number is included
|
||||
in written data. The data has to be 41 bytes long.
|
||||
Before reading this file, control has to be written to select
|
||||
which profile to read.
|
||||
Users: http://roccat.sourceforge.net
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/keys_macro
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: When written, this file lets one set the function of the macro
|
||||
keys for a specific profile. Profile number is included in
|
||||
written data. The data has to be 35 bytes long.
|
||||
Before reading this file, control has to be written to select
|
||||
which profile to read.
|
||||
Users: http://roccat.sourceforge.net
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/keys_media
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: When written, this file lets one set the function of the media
|
||||
keys for a specific profile. Profile number is included in
|
||||
written data. The data has to be 29 bytes long.
|
||||
Before reading this file, control has to be written to select
|
||||
which profile to read.
|
||||
Users: http://roccat.sourceforge.net
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/keys_thumbster
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: When written, this file lets one set the function of the
|
||||
thumbster keys for a specific profile. Profile number is included
|
||||
in written data. The data has to be 23 bytes long.
|
||||
Before reading this file, control has to be written to select
|
||||
which profile to read.
|
||||
Users: http://roccat.sourceforge.net
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/last_set
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: When written, this file lets one set the time in secs since
|
||||
epoch in which the last configuration took place.
|
||||
The data has to be 20 bytes long.
|
||||
Users: http://roccat.sourceforge.net
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/light
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: When written, this file lets one set the backlight intensity for
|
||||
a specific profile. Profile number is included in written data.
|
||||
The data has to be 10 bytes long.
|
||||
Before reading this file, control has to be written to select
|
||||
which profile to read.
|
||||
Users: http://roccat.sourceforge.net
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/macro
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: When written, this file lets one store macros with max 500
|
||||
keystrokes for a specific button for a specific profile.
|
||||
Button and profile numbers are included in written data.
|
||||
The data has to be 2083 bytes long.
|
||||
Before reading this file, control has to be written to select
|
||||
which profile and key to read.
|
||||
Users: http://roccat.sourceforge.net
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/control
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: When written, this file lets one select which data from which
|
||||
profile will be read next. The data has to be 3 bytes long.
|
||||
This file is writeonly.
|
||||
Users: http://roccat.sourceforge.net
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/talk
|
||||
Date: June 2011
|
||||
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
Description: When written, this file lets one trigger easyshift functionality
|
||||
from the host.
|
||||
The data has to be 16 bytes long.
|
||||
This file is writeonly.
|
||||
Users: http://roccat.sourceforge.net
|
@ -8,3 +8,15 @@ Contact: David Herrmann <dh.herrmann@googlemail.com>
|
||||
Description: Make it possible to set/get current led state. Reading from it
|
||||
returns 0 if led is off and 1 if it is on. Writing 0 to it
|
||||
disables the led, writing 1 enables it.
|
||||
|
||||
What: /sys/bus/hid/drivers/wiimote/<dev>/extension
|
||||
Date: August 2011
|
||||
KernelVersion: 3.2
|
||||
Contact: David Herrmann <dh.herrmann@googlemail.com>
|
||||
Description: This file contains the currently connected and initialized
|
||||
extensions. It can be one of: none, motionp, nunchuck, classic,
|
||||
motionp+nunchuck, motionp+classic
|
||||
motionp is the official Nintendo Motion+ extension, nunchuck is
|
||||
the official Nintendo Nunchuck extension and classic is the
|
||||
Nintendo Classic Controller extension. The motionp extension can
|
||||
be combined with the other two.
|
||||
|
@ -15,9 +15,9 @@ Contact: linux-input@vger.kernel.org
|
||||
Description:
|
||||
Attribute group for control of the status LEDs and the OLEDs.
|
||||
This attribute group is only available for Intuos 4 M, L,
|
||||
and XL (with LEDs and OLEDs) and Cintiq 21UX2 (LEDs only).
|
||||
Therefore its presence implicitly signifies the presence of
|
||||
said LEDs and OLEDs on the tablet device.
|
||||
and XL (with LEDs and OLEDs) and Cintiq 21UX2 and Cintiq 24HD
|
||||
(LEDs only). Therefore its presence implicitly signifies the
|
||||
presence of said LEDs and OLEDs on the tablet device.
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/status0_luminance
|
||||
Date: August 2011
|
||||
@ -41,16 +41,17 @@ Date: August 2011
|
||||
Contact: linux-input@vger.kernel.org
|
||||
Description:
|
||||
Writing to this file sets which one of the four (for Intuos 4)
|
||||
or of the right four (for Cintiq 21UX2) status LEDs is active (0..3).
|
||||
The other three LEDs on the same side are always inactive.
|
||||
or of the right four (for Cintiq 21UX2 and Cintiq 24HD) status
|
||||
LEDs is active (0..3). The other three LEDs on the same side are
|
||||
always inactive.
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/status_led1_select
|
||||
Date: September 2011
|
||||
Contact: linux-input@vger.kernel.org
|
||||
Description:
|
||||
Writing to this file sets which one of the left four (for Cintiq 21UX2)
|
||||
status LEDs is active (0..3). The other three LEDs on the left are always
|
||||
inactive.
|
||||
Writing to this file sets which one of the left four (for Cintiq 21UX2
|
||||
and Cintiq 24HD) status LEDs is active (0..3). The other three LEDs on
|
||||
the left are always inactive.
|
||||
|
||||
What: /sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/buttons_luminance
|
||||
Date: August 2011
|
||||
|
@ -346,6 +346,10 @@ Description:
|
||||
number of objects per slab. If a slab cannot be allocated
|
||||
because of fragmentation, SLUB will retry with the minimum order
|
||||
possible depending on its characteristics.
|
||||
When debug_guardpage_minorder=N (N > 0) parameter is specified
|
||||
(see Documentation/kernel-parameters.txt), the minimum possible
|
||||
order is used and this sysfs entry can not be used to change
|
||||
the order at run time.
|
||||
|
||||
What: /sys/kernel/slab/cache/order_fallback
|
||||
Date: April 2008
|
||||
|
@ -33,3 +33,19 @@ Description: Maximum time allowed for periodic transfers per microframe (μs)
|
||||
Beware, non-standard modes are usually not thoroughly tested by
|
||||
hardware designers, and the hardware can malfunction when this
|
||||
setting differ from default 100.
|
||||
|
||||
What: /sys/module/*/{coresize,initsize}
|
||||
Date: Jan 2012
|
||||
KernelVersion:»·3.3
|
||||
Contact: Kay Sievers <kay.sievers@vrfy.org>
|
||||
Description: Module size in bytes.
|
||||
|
||||
What: /sys/module/*/taint
|
||||
Date: Jan 2012
|
||||
KernelVersion:»·3.3
|
||||
Contact: Kay Sievers <kay.sievers@vrfy.org>
|
||||
Description: Module taint flags:
|
||||
P - proprietary module
|
||||
O - out-of-tree module
|
||||
F - force-loaded module
|
||||
C - staging driver module
|
||||
|
@ -50,7 +50,9 @@
|
||||
|
||||
<sect1><title>Delaying, scheduling, and timer routines</title>
|
||||
!Iinclude/linux/sched.h
|
||||
!Ekernel/sched.c
|
||||
!Ekernel/sched/core.c
|
||||
!Ikernel/sched/cpupri.c
|
||||
!Ikernel/sched/fair.c
|
||||
!Iinclude/linux/completion.h
|
||||
!Ekernel/timer.c
|
||||
</sect1>
|
||||
@ -100,9 +102,12 @@ X!Iinclude/linux/kobject.h
|
||||
!Iinclude/linux/device.h
|
||||
</sect1>
|
||||
<sect1><title>Device Drivers Base</title>
|
||||
!Idrivers/base/init.c
|
||||
!Edrivers/base/driver.c
|
||||
!Edrivers/base/core.c
|
||||
!Edrivers/base/syscore.c
|
||||
!Edrivers/base/class.c
|
||||
!Idrivers/base/node.c
|
||||
!Edrivers/base/firmware_class.c
|
||||
!Edrivers/base/transport_class.c
|
||||
<!-- Cannot be included, because
|
||||
@ -111,13 +116,18 @@ X!Iinclude/linux/kobject.h
|
||||
exceed allowed 44 characters maximum
|
||||
X!Edrivers/base/attribute_container.c
|
||||
-->
|
||||
!Edrivers/base/sys.c
|
||||
!Edrivers/base/dd.c
|
||||
<!--
|
||||
X!Edrivers/base/interface.c
|
||||
-->
|
||||
!Iinclude/linux/platform_device.h
|
||||
!Edrivers/base/platform.c
|
||||
!Edrivers/base/bus.c
|
||||
</sect1>
|
||||
<sect1><title>Device Drivers DMA Management</title>
|
||||
!Edrivers/base/dma-buf.c
|
||||
!Edrivers/base/dma-coherent.c
|
||||
!Edrivers/base/dma-mapping.c
|
||||
</sect1>
|
||||
<sect1><title>Device Drivers Power Management</title>
|
||||
!Edrivers/base/power/main.c
|
||||
@ -216,9 +226,8 @@ X!Isound/sound_firmware.c
|
||||
|
||||
<chapter id="uart16x50">
|
||||
<title>16x50 UART Driver</title>
|
||||
!Iinclude/linux/serial_core.h
|
||||
!Edrivers/tty/serial/serial_core.c
|
||||
!Edrivers/tty/serial/8250.c
|
||||
!Edrivers/tty/serial/8250/8250.c
|
||||
</chapter>
|
||||
|
||||
<chapter id="fbdev">
|
||||
|
@ -317,7 +317,7 @@ CPU B: spin_unlock_irqrestore(&dev_lock, flags)
|
||||
<chapter id="pubfunctions">
|
||||
<title>Public Functions Provided</title>
|
||||
!Iarch/x86/include/asm/io.h
|
||||
!Elib/iomap.c
|
||||
!Elib/pci_iomap.c
|
||||
</chapter>
|
||||
|
||||
</book>
|
||||
|
59
Documentation/DocBook/media/constraints.png.b64
Normal file
59
Documentation/DocBook/media/constraints.png.b64
Normal file
@ -0,0 +1,59 @@
|
||||
iVBORw0KGgoAAAANSUhEUgAAAlQAAAFYCAYAAACVsmLPAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A
|
||||
/wD/oL2nkwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAAd0SU1FB9sLCBIAKVtZsMAAAAxxSURBVHja
|
||||
7d3ZbqvIAkDRLsv//8v0QytXvpYZap7Wko56OAnE2AXbBSbhOI7jHwAAkr1sAgAAQQUAIKgAAAQV
|
||||
AICgAgBAUAEACCoAAEEFACCoAAAQVAAAzb2jvyMEWw0AmFvh37xnhgoAQFABAPT1zvruwtNlAADV
|
||||
VLxsyQwVAICgAgAQVAAAggoAQFABACCoYEohuFkugKACsmLq178DIKiAyJgSVQCCCigQU6IKQFAB
|
||||
BWJKVAEIKqBgKIkqAEEFFAgkUQUgqIACYSSqAAQViKkwxjIAEFSwbUyJKgBBBWJq8GUCIKhgm5gS
|
||||
VQCCCsSUqAIQVMBYoSOqAAQVLOk41lwXAIIKhoqqJyFUYhkACCpYMqpiQqjEMgAQVLBUVKWEUIll
|
||||
ACCoYImoygmhEssAQFDBElHVexkACCoAAEEFACCoAAAQVAAAggoAQFABAAgqAAAEFQCAoAIAEFQA
|
||||
AIIKAABBBQAgqAAABBUAgKACAOA/b5sAGjsO2wBgMWaoAAAEFQCAoAIAEFQAADtzUXohIQQbAYDi
|
||||
Dh9kmYIZKgAAQQUAIKgAAAQVAICgAgAgmU/5VeSTGQDE8InxeZmhAgAQVAAAggoAQFABAAgqAAAE
|
||||
FQCAoAIAEFQAAHtyY0/o4O7efe4JCzAXM1QAAIIKAEBQAQAIKgAAQQUAgKACABBUAACCCgBAUAEA
|
||||
IKgAAAQVAICgAgAQVAAACCoAAEEFACCoAAAEFVBICGMsAwBBBVPHVE4QlVgGAIIKpo6ps/9utQwA
|
||||
BBUsEVMpQVRiGQAIKlgqpmKCqMQyABBUsGRMzbouAAQVNHMca64LAEEFy0WVmAIQVCCqxBSAoAL6
|
||||
hI+YAhBUIKrEFICgAvqEkJgCEFQgqo4+3wuAoILto0pMAQgqICOQxBSAoAIyQklMAQgqICOYxBSA
|
||||
oAIyokpMAQgqICOqxBTAvN42AYwTVQDMyQwVAICgAgAQVAAAggoAQFABAJDMp/y4FIJtwJx8ehJo
|
||||
yQwVAICgAgDoyyk/HnMKhdE5RQ30YoYKAEBQAQAIKgAAQQUAIKgAABBUAACCCgBAUAEACCoAAAQV
|
||||
AICgAgAQVAAAggoAAEEFACCoAAAEFQCAoAIAQFABAAgqAABBBQAgqAAAEFQAAIIKAEBQAQAIKgAA
|
||||
BBUAgKACABBUAACCCgAAQQUAIKgAAAQVAICgAgBAUAEACCoAAEEFACCoAAAQVAAAggoAQFABAAgq
|
||||
AACGCKoQPAs2JQAIquwCUAI2JQAIqowCOPtvbEoAEFQRBaAEbEoAEFQFCkAJ2JQAIKgKFIASsClh
|
||||
szEKrDGoXkNuiOPwwim4iezYoc9+39iDfQbVq+mGEFOiCjZ7E23swR6D6tV8Q4gpUQWb7PeNPdhn
|
||||
UL26bAgxJapgk/2+sQd7DKr3EDE1y96mUPT1fqgh6Ffosbsz9mDdQfXquiEY/rUKlBtLYgoqDJZB
|
||||
Dmjlg8qRWlSBMSSmYLOoKhtUjtCiCowdMQUbRtXLswUgpkBU5XkXf9CmPJZ9nQJrft6Gife9XmC/
|
||||
t0mHg9tr3FcJYgrmjilgn8Fa55SfI7WYAvtnYKNBW+8+VLGn/zY6wtd4qDY1iCngx+BtdNCre1G6
|
||||
W3gPt7MXUwAwW1CJKjEFCzB2wODtH1SiSkyB/TKw+KB9DfnARJWYAvtnYKLB+m7+AJ+UgL2WTQmT
|
||||
jz1jEJVf0ASD7jXck2/vY1PCQscwE+6wfkz1CaqrB6wAbEoQVcBkMdUvqH49cAVgU4KoAiaMqb5B
|
||||
9bkBFIBNCaIKmDSm+geVArApYaOxZ4zCuoPq5VkDqL//F1Ow9qASVACV9/9iCtYfVIIKoOL+X0zB
|
||||
HoNKUAFU2v+LKdhnUAkqgAZvqoG1B5WgAgAQVAAAggoAQFABAAgqAAAEFQCAoAIAEFQAAIIKAABB
|
||||
BQAgqAAABBUAgKACAEBQAQAIKgAAQQUAIKgAABBUAACCCgBAUAEACCoAAAQVAICgAgAY3NsmIEYI
|
||||
//3zONK/7u/v/nx+zdPl/1rO0++LWd6vZZ59Xe7jSfnZSq3z6jnJ2ValX09PHj9AD2aoiPJ34Lo6
|
||||
wJWKiJQD7N2BN/WAzbNtZTsCuzJDRZeD8XHkH3zPZo5CSJudeTKbdrX+lkE7QkzFbq8VHj/AGTNU
|
||||
dDkY1ziw1jjY7nAA/wzKqxnIu5gSPICggoTIuDroXh1YRz3ohuCUlcgESOOUH81iZdR1fJ9+zL1Q
|
||||
use1Y6nrvLsearR46rHNAQQVw6l14HtyOurJz5USVqs9LynXt8V+ShBAUMHHQfdzFuMsQGqHSW5M
|
||||
PQmrVtdsjRCkOwY5gKBiGne3Okg5WJaMqbuw2uX5+P6aX4H8/f922F4AgorlgyD3hp47z3ycPfZf
|
||||
p/FSb00BIKjg4kD8/cm4mFNjKfd/OpsJyb2GJ+V+UzEXSK9wAfuvqGr9s7ooHRiV2yYgDCe8xUOp
|
||||
gHny2GNjVdwAOzJDRbUYSfnep8srfdCOWV6tr225ztzt3PpxiTRgdGaoAAAEFQBAX075sbS7C6dH
|
||||
OJU0w8/ocQEIKjY2w0F71bAQTMBOnPIDABBUAAB9OeXHY36tCAD8ZoYKAEBQAQD05ZQfl3xSCwDu
|
||||
maECABBUAACCCgBAUAEACCqgiRDczwtAUAFZMfXr3wEQVEBkTIkqAEEFFIgpUQUgqIACMSWqAAQV
|
||||
UDCURBWAoAIKBJKoAhBUQIEwElUAggrEVBhjGQAIKtg2pkQVgKACMTX4MgEQVLBNTIkqAEEFYkpU
|
||||
AQgqYKzQEVUAggqWdBxrrgsAQQVDRdWTECqxDAAEFSwZVTEhVGIZAAgqWCqqUkKoxDIAEFSwRFTl
|
||||
hFCJZQAgqGCJqOq9DAAEFQCAoAIAEFQAAAgqAABBBQAwibdNAECqcPKLJo8fH1cNN7+U8up7jpOP
|
||||
v6as//PvPr+/xPpTlsEazFABUDSmnsRTie/pvX74ZIYKgKz4+J55+fu7EMLPWZmU2auY9YsjejBD
|
||||
BUDRmDk7pdZq/Vf/P2bZT7/2OI7/rU/ICSoAiHIVLS2uFyq5Dtc3kcspPwCairmQvHUghhBOT1U+
|
||||
eQx/fyfQBBUALBNrtcPmc/l/QYagAoDqYi9ib/2zPZ2l+hVw7Ms1VAAkKXXbgpIXkH9eIF7r8T15
|
||||
bEJLUAHA4wD6FQ5PPoVXc/0ll3/3db/+sCen/ABIio7PU3U5YfIdY0++78n6RzPqxfiUYYYKqh94
|
||||
rv/AzFGV8nelouLue3JC5e5XzTx57E777SUcsa+4zxeIo8HlOw/vOgBwLBlqA1drGDNUAACCCgBA
|
||||
UAEATM2n/CpyQSIA7MEMFQCAoAIAEFQAAIIKAGBnLkovxI3XAGBfZqgAAAQVAEBfTvlBbXf3I3O6
|
||||
GGB6ZqgAAAQVAICgAgAQVAAAggoAAEEFACCoAAAEFQCAoAIAQFABAAgqAABBBQAgqAAAEFQAAIIK
|
||||
AEBQAQAIKiBFCGMsAwBBBVPHVE4QlVgGAM29bQIoGFOf/30c7ZcBrV/zd6/Rq6/7fs1/fs3T5Z+9
|
||||
AckZO2dvaL6XeffGJ/XxpPxspdZ59ZzkbKve278BM1RQOqaeDvbSy4CW/g5WV6/RUhHRcuwYc2W2
|
||||
VY3tP/hzY4YKar5bfLIDeLIMM1WsOnaOI/9AeTZzETt2YmbTrtbfMmhH2PfFbq/Syxxk/2iGCmrF
|
||||
1Kzrgplez78OpjUOsDu8qfkMyqsZyLvwSdleNZYpqGASLQe3GSpGHgNXB92r1+6or+sQvInptV+a
|
||||
eF/nlB/kDv7aO14xxUpahErqOr7Hc+yF9y3Hbul13l27NPJ+aJBTgYIKRo4qMcXK46b2wTVlHb9m
|
||||
3VpcXD/i85Kyb4v9lGCvZQoq2CiqxBQzvfY/ZzHOAqR2mOTG1JOwanXN1ghBunucR3INFYw4qMUU
|
||||
K/sLsO9rlXKuXSoZU99jcfXxmPpp5LP7f5W+B9Ukz4GggtGiSkxBn5ja/UL0v3D5/nO1jyq1zWos
|
||||
szGn/KDGTinnoliY9TV/FzZnr++U+z+dfcIw93qblPtNxVwUvcIF7N/7uZJRlbLMQS5KN0MFtQ4w
|
||||
YgrWGberjs+Y21vExmqN/eDAz0M4jsifrtZ5alh5ZyWmAMbaJxfe75qhgl7veMUUwDIEFfSMKjEF
|
||||
sAQXpUOrqJrk5nSwpLvT7yOMxxl+Ro9LUMFQUSWmoP348zN6XIIK7FgAWDWo/DZuAAAXpQMACCoA
|
||||
gM7iT/m5BgQA4P+YoQIAEFQAAIIKAEBQAQAIKgAABBUAgKACABBUAAB7+hfHbDX87cMFJQAAAABJ
|
||||
RU5ErkJggg==
|
@ -163,14 +163,16 @@ get/set up to 64 properties. The actual meaning of each property is described on
|
||||
<section id="DTV-FREQUENCY">
|
||||
<title><constant>DTV_FREQUENCY</constant></title>
|
||||
|
||||
<para>Central frequency of the channel, in HZ.</para>
|
||||
<para>Central frequency of the channel.</para>
|
||||
|
||||
<para>Notes:</para>
|
||||
<para>1)For ISDB-T, the channels are usually transmitted with an offset of 143kHz.
|
||||
<para>1)For satellital delivery systems, it is measured in kHz.
|
||||
For the other ones, it is measured in Hz.</para>
|
||||
<para>2)For ISDB-T, the channels are usually transmitted with an offset of 143kHz.
|
||||
E.g. a valid frequncy could be 474143 kHz. The stepping is bound to the bandwidth of
|
||||
the channel which is 6MHz.</para>
|
||||
|
||||
<para>2)As in ISDB-Tsb the channel consists of only one or three segments the
|
||||
<para>3)As in ISDB-Tsb the channel consists of only one or three segments the
|
||||
frequency step is 429kHz, 3*429 respectively. As for ISDB-T the
|
||||
central frequency of the channel is expected.</para>
|
||||
</section>
|
||||
@ -334,9 +336,10 @@ typedef enum fe_rolloff {
|
||||
<title>fe_delivery_system type</title>
|
||||
<para>Possible values: </para>
|
||||
<programlisting>
|
||||
|
||||
typedef enum fe_delivery_system {
|
||||
SYS_UNDEFINED,
|
||||
SYS_DVBC_ANNEX_AC,
|
||||
SYS_DVBC_ANNEX_A,
|
||||
SYS_DVBC_ANNEX_B,
|
||||
SYS_DVBT,
|
||||
SYS_DSS,
|
||||
@ -353,6 +356,7 @@ typedef enum fe_delivery_system {
|
||||
SYS_DAB,
|
||||
SYS_DVBT2,
|
||||
SYS_TURBO,
|
||||
SYS_DVBC_ANNEX_C,
|
||||
} fe_delivery_system_t;
|
||||
</programlisting>
|
||||
</section>
|
||||
@ -647,6 +651,18 @@ typedef enum fe_hierarchy {
|
||||
many data types via a single multiplex. The API will soon support this
|
||||
at which point this section will be expanded.</para>
|
||||
</section>
|
||||
<section id="DTV_ENUM_DELSYS">
|
||||
<title><constant>DTV_ENUM_DELSYS</constant></title>
|
||||
<para>A Multi standard frontend needs to advertise the delivery systems provided.
|
||||
Applications need to enumerate the provided delivery systems, before using
|
||||
any other operation with the frontend. Prior to it's introduction,
|
||||
FE_GET_INFO was used to determine a frontend type. A frontend which
|
||||
provides more than a single delivery system, FE_GET_INFO doesn't help much.
|
||||
Applications which intends to use a multistandard frontend must enumerate
|
||||
the delivery systems associated with it, rather than trying to use
|
||||
FE_GET_INFO. In the case of a legacy frontend, the result is just the same
|
||||
as with FE_GET_INFO, but in a more structured format </para>
|
||||
</section>
|
||||
</section>
|
||||
<section id="frontend-property-terrestrial-systems">
|
||||
<title>Properties used on terrestrial delivery systems</title>
|
||||
@ -721,14 +737,10 @@ typedef enum fe_hierarchy {
|
||||
<listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem>
|
||||
<listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem>
|
||||
<listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem>
|
||||
<listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem>
|
||||
<listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem>
|
||||
<listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem>
|
||||
<listitem><para><link linkend="DTV-CODE-RATE-HP"><constant>DTV_CODE_RATE_HP</constant></link></para></listitem>
|
||||
<listitem><para><link linkend="DTV-CODE-RATE-LP"><constant>DTV_CODE_RATE_LP</constant></link></para></listitem>
|
||||
<listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem>
|
||||
<listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem>
|
||||
<listitem><para><link linkend="DTV-HIERARCHY"><constant>DTV_HIERARCHY</constant></link></para></listitem>
|
||||
<listitem><para><link linkend="DTV-ISDBT-LAYER-ENABLED"><constant>DTV_ISDBT_LAYER_ENABLED</constant></link></para></listitem>
|
||||
<listitem><para><link linkend="DTV-ISDBT-PARTIAL-RECEPTION"><constant>DTV_ISDBT_PARTIAL_RECEPTION</constant></link></para></listitem>
|
||||
<listitem><para><link linkend="DTV-ISDBT-SOUND-BROADCASTING"><constant>DTV_ISDBT_SOUND_BROADCASTING</constant></link></para></listitem>
|
||||
@ -767,7 +779,8 @@ typedef enum fe_hierarchy {
|
||||
<title>Properties used on cable delivery systems</title>
|
||||
<section id="dvbc-params">
|
||||
<title>DVB-C delivery system</title>
|
||||
<para>The DVB-C Annex-A/C is the widely used cable standard. Transmission uses QAM modulation.</para>
|
||||
<para>The DVB-C Annex-A is the widely used cable standard. Transmission uses QAM modulation.</para>
|
||||
<para>The DVB-C Annex-C is optimized for 6MHz, and is used in Japan. It supports a subset of the Annex A modulation types, and a roll-off of 0.13, instead of 0.15</para>
|
||||
<para>The following parameters are valid for DVB-C Annex A/C:</para>
|
||||
<itemizedlist mark='opencircle'>
|
||||
<listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem>
|
||||
|
@ -45,8 +45,8 @@ transmission. The fontend types are given by fe_type_t type, defined as:</para>
|
||||
</row>
|
||||
<row>
|
||||
<entry id="FE_QAM"><constant>FE_QAM</constant></entry>
|
||||
<entry>For DVB-C annex A/C standard</entry>
|
||||
<entry><constant>SYS_DVBC_ANNEX_AC</constant></entry>
|
||||
<entry>For DVB-C annex A standard</entry>
|
||||
<entry><constant>SYS_DVBC_ANNEX_A</constant></entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry id="FE_OFDM"><constant>FE_OFDM</constant></entry>
|
||||
@ -63,6 +63,10 @@ transmission. The fontend types are given by fe_type_t type, defined as:</para>
|
||||
<para>Newer formats like DVB-S2, ISDB-T, ISDB-S and DVB-T2 are not described at the above, as they're
|
||||
supported via the new <link linkend="FE_GET_SET_PROPERTY">FE_GET_PROPERTY/FE_GET_SET_PROPERTY</link> ioctl's, using the <link linkend="DTV-DELIVERY-SYSTEM">DTV_DELIVERY_SYSTEM</link> parameter.
|
||||
</para>
|
||||
|
||||
<para>The usage of this field is deprecated, as it doesn't report all supported standards, and
|
||||
will provide an incomplete information for frontends that support multiple delivery systems.
|
||||
Please use <link linkend="DTV_ENUM_DELSYS">DTV_ENUM_DELSYS</link> instead.</para>
|
||||
</section>
|
||||
|
||||
<section id="fe-caps-t">
|
||||
|
206
Documentation/DocBook/media/selection.png.b64
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206
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
AA/CIgAAAAAehEUAAAAAPAiLAAAAAHgQFgEAAADwICwCAAAA4EFYBAAAAMCDsAgAAACAB2ERAAAA
|
||||
AA/CIgAAAAAehEUAAAAAPAiLAAAAAHgQFgEAAADwICwCAAAA4EFYBAAAAMCDsAgAAACAB2ERAAAA
|
||||
AA/CIgAAAAAe/g/10lQlA3JSSwAAAABJRU5ErkJggg==
|
@ -178,11 +178,3 @@ in the frequency range from 87,5 to 108,0 MHz</title>
|
||||
</biblioentry>
|
||||
|
||||
</bibliography>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -1168,6 +1168,8 @@ dheight = format.fmt.pix.height;
|
||||
</section>
|
||||
</section>
|
||||
|
||||
&sub-selection-api;
|
||||
|
||||
<section id="streaming-par">
|
||||
<title>Streaming Parameters</title>
|
||||
|
||||
@ -1195,11 +1197,3 @@ separate parameters for input and output devices.</para>
|
||||
<para>These ioctls are optional, drivers need not implement
|
||||
them. If so, they return the &EINVAL;.</para>
|
||||
</section>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -1082,7 +1082,7 @@ until the time in the timestamp field has arrived. I would like to
|
||||
follow SGI's lead, and adopt a multimedia timestamping system like
|
||||
their UST (Unadjusted System Time). See
|
||||
http://web.archive.org/web/*/http://reality.sgi.com
|
||||
/cpirazzi_engr/lg/time/intro.html.
|
||||
/cpirazzi_engr/lg/time/intro.html.
|
||||
UST uses timestamps that are 64-bit signed integers
|
||||
(not struct timeval's) and given in nanosecond units. The UST clock
|
||||
starts at zero when the system is booted and runs continuously and
|
||||
@ -2376,6 +2376,23 @@ that used it. It was originally scheduled for removal in 2.6.35.
|
||||
<listitem>
|
||||
<para>V4L2_CTRL_FLAG_VOLATILE was added to signal volatile controls to userspace.</para>
|
||||
</listitem>
|
||||
<listitem>
|
||||
<para>Add selection API for extended control over cropping and
|
||||
composing. Does not affect the compatibility of current drivers and
|
||||
applications. See <link linkend="selection-api"> selection API </link> for
|
||||
details.</para>
|
||||
</listitem>
|
||||
</orderedlist>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>V4L2 in Linux 3.3</title>
|
||||
<orderedlist>
|
||||
<listitem>
|
||||
<para>Added <constant>V4L2_CID_ALPHA_COMPONENT</constant> control
|
||||
to the <link linkend="control">User controls class</link>.
|
||||
</para>
|
||||
</listitem>
|
||||
</orderedlist>
|
||||
</section>
|
||||
|
||||
@ -2489,6 +2506,9 @@ ioctls.</para>
|
||||
<listitem>
|
||||
<para>&VIDIOC-CREATE-BUFS; and &VIDIOC-PREPARE-BUF; ioctls.</para>
|
||||
</listitem>
|
||||
<listitem>
|
||||
<para>Selection API. <xref linkend="selection-api" /></para>
|
||||
</listitem>
|
||||
</itemizedlist>
|
||||
</section>
|
||||
|
||||
@ -2507,11 +2527,3 @@ interfaces and should not be implemented in new drivers.</para>
|
||||
</itemizedlist>
|
||||
</section>
|
||||
</section>
|
||||
|
||||
<!--
|
||||
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|
||||
mode: sgml
|
||||
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|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -323,12 +323,6 @@ minimum value disables backlight compensation.</entry>
|
||||
<entry>Switch on or off the illuminator 1 or 2 of the device
|
||||
(usually a microscope).</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_CID_LASTP1</constant></entry>
|
||||
<entry></entry>
|
||||
<entry>End of the predefined control IDs (currently
|
||||
<constant>V4L2_CID_ILLUMINATORS_2</constant> + 1).</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_CID_MIN_BUFFERS_FOR_CAPTURE</constant></entry>
|
||||
<entry>integer</entry>
|
||||
@ -345,6 +339,25 @@ and used as a hint to determine the number of OUTPUT buffers to pass to REQBUFS.
|
||||
The value is the minimum number of OUTPUT buffers that is necessary for hardware
|
||||
to work.</entry>
|
||||
</row>
|
||||
<row id="v4l2-alpha-component">
|
||||
<entry><constant>V4L2_CID_ALPHA_COMPONENT</constant></entry>
|
||||
<entry>integer</entry>
|
||||
<entry> Sets the alpha color component on the capture device or on
|
||||
the capture buffer queue of a mem-to-mem device. When a mem-to-mem
|
||||
device produces frame format that includes an alpha component
|
||||
(e.g. <link linkend="rgb-formats">packed RGB image formats</link>)
|
||||
and the alpha value is not defined by the mem-to-mem input data
|
||||
this control lets you select the alpha component value of all
|
||||
pixels. It is applicable to any pixel format that contains an alpha
|
||||
component.
|
||||
</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_CID_LASTP1</constant></entry>
|
||||
<entry></entry>
|
||||
<entry>End of the predefined control IDs (currently
|
||||
<constant>V4L2_CID_ALPHA_COMPONENT</constant> + 1).</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_CID_PRIVATE_BASE</constant></entry>
|
||||
<entry></entry>
|
||||
@ -3329,6 +3342,16 @@ interface and may change in the future.</para>
|
||||
<entry>The short circuit protection of the flash
|
||||
controller has been triggered.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_FLASH_FAULT_OVER_CURRENT</constant></entry>
|
||||
<entry>Current in the LED power supply has exceeded the limit
|
||||
specific to the flash controller.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_FLASH_FAULT_INDICATOR</constant></entry>
|
||||
<entry>The flash controller has detected a short or open
|
||||
circuit condition on the indicator LED.</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</entrytbl>
|
||||
</row>
|
||||
@ -3357,11 +3380,3 @@ interface and may change in the future.</para>
|
||||
|
||||
</section>
|
||||
</section>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "common.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -108,11 +108,3 @@ linkend="mmap">memory mapping</link> or <link
|
||||
linkend="userp">user pointer</link>) I/O. See <xref
|
||||
linkend="io" /> for details.</para>
|
||||
</section>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -16,11 +16,3 @@ Applications send data to be converted to the driver through a
|
||||
I/O.</para>
|
||||
|
||||
<para>[to do]</para>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -15,11 +15,3 @@ receive the result data either with &func-read; and &func-write;
|
||||
functions, or through the streaming I/O mechanism.</para>
|
||||
|
||||
<para>[to do]</para>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -41,11 +41,3 @@ intermediate step leading up to that information. See the documentation for the
|
||||
event you want to subscribe to whether this is applicable for that event or not.</para>
|
||||
</listitem>
|
||||
</orderedlist></para>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -154,11 +154,3 @@ data flow. For more information see <xref linkend="crop" />.</para>
|
||||
however the framebuffer interface of the driver may support the
|
||||
<constant>FBIOBLANK</constant> ioctl.</para>
|
||||
</section>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -104,11 +104,3 @@ linkend="mmap">memory mapping</link> or <link
|
||||
linkend="userp">user pointer</link>) I/O. See <xref
|
||||
linkend="io" /> for details.</para>
|
||||
</section>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -369,11 +369,3 @@ reasons. <!-- video4linux-list@redhat.com on 22 Oct 2002 subject
|
||||
<para>To start or stop the frame buffer overlay applications call
|
||||
the &VIDIOC-OVERLAY; ioctl.</para>
|
||||
</section>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -47,11 +47,3 @@ depending on the selected frequency. The &VIDIOC-G-TUNER; or
|
||||
&VIDIOC-G-MODULATOR; ioctl
|
||||
reports the supported frequency range.</para>
|
||||
</section>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -337,11 +337,3 @@ an &EBUSY; if the required hardware resources are temporarily
|
||||
unavailable, for example the device is already in use by another
|
||||
process.</para>
|
||||
</section>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -29,10 +29,10 @@ returned by the &VIDIOC-QUERYCAP; ioctl. Any tuner that supports RDS
|
||||
will set the <constant>V4L2_TUNER_CAP_RDS</constant> flag in
|
||||
the <structfield>capability</structfield> field of &v4l2-tuner;. If
|
||||
the driver only passes RDS blocks without interpreting the data
|
||||
the <constant>V4L2_TUNER_SUB_RDS_BLOCK_IO</constant> flag has to be
|
||||
the <constant>V4L2_TUNER_CAP_RDS_BLOCK_IO</constant> flag has to be
|
||||
set, see <link linkend="reading-rds-data">Reading RDS data</link>.
|
||||
For future use the
|
||||
flag <constant>V4L2_TUNER_SUB_RDS_CONTROLS</constant> has also been
|
||||
flag <constant>V4L2_TUNER_CAP_RDS_CONTROLS</constant> has also been
|
||||
defined. However, a driver for a radio tuner with this capability does
|
||||
not yet exist, so if you are planning to write such a driver you
|
||||
should discuss this on the linux-media mailing list: &v4l-ml;.</para>
|
||||
@ -52,9 +52,9 @@ field of &v4l2-modulator;.
|
||||
In order to enable the RDS transmission one must set the <constant>V4L2_TUNER_SUB_RDS</constant>
|
||||
bit in the <structfield>txsubchans</structfield> field of &v4l2-modulator;.
|
||||
If the driver only passes RDS blocks without interpreting the data
|
||||
the <constant>V4L2_TUNER_SUB_RDS_BLOCK_IO</constant> flag has to be set. If the
|
||||
the <constant>V4L2_TUNER_CAP_RDS_BLOCK_IO</constant> flag has to be set. If the
|
||||
tuner is capable of handling RDS entities like program identification codes and radio
|
||||
text, the flag <constant>V4L2_TUNER_SUB_RDS_CONTROLS</constant> should be set,
|
||||
text, the flag <constant>V4L2_TUNER_CAP_RDS_CONTROLS</constant> should be set,
|
||||
see <link linkend="writing-rds-data">Writing RDS data</link> and
|
||||
<link linkend="fm-tx-controls">FM Transmitter Control Reference</link>.</para>
|
||||
</section>
|
||||
@ -194,11 +194,3 @@ as follows:</para>
|
||||
</tgroup>
|
||||
</table>
|
||||
</section>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -697,12 +697,3 @@ Sliced VBI services</link> for a description of the line payload.</entry>
|
||||
|
||||
</section>
|
||||
</section>
|
||||
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -27,11 +27,3 @@ kernel 2.6.37.</para>
|
||||
|
||||
<para>Modern devices all use the <link linkend="raw-vbi">raw</link> or
|
||||
<link linkend="sliced">sliced</link> VBI API.</para>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -198,11 +198,3 @@ devices with the videodev module.</para>
|
||||
<para>to do</para>
|
||||
</section>
|
||||
-->
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -60,11 +60,3 @@ descriptor.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -69,11 +69,3 @@ their respective function and parameters are specified in <xref
|
||||
the parameter remains unmodified.</para>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -181,11 +181,3 @@ complete the request.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -74,11 +74,3 @@ mapped yet.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -111,11 +111,3 @@ system has been reached.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -117,11 +117,3 @@ than <constant>OPEN_MAX</constant>.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -179,11 +179,3 @@ type of device.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -128,11 +128,3 @@ zero or greater than <constant>FD_SETSIZE</constant>.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -126,11 +126,3 @@ type of device.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -1282,11 +1282,3 @@ line, top field first. The bottom field is transmitted first.</entry>
|
||||
</mediaobject>
|
||||
</figure>
|
||||
</section>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -158,10 +158,3 @@ still don't use libv4l.</para>
|
||||
</section>
|
||||
|
||||
</section>
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -60,11 +60,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -137,11 +137,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -141,11 +141,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -144,11 +144,3 @@ CbCr plane has as many pad bytes after its rows.</para>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -64,11 +64,3 @@ layout of macroblocks</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -164,11 +164,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
121
Documentation/DocBook/media/v4l/pixfmt-nv24.xml
Normal file
121
Documentation/DocBook/media/v4l/pixfmt-nv24.xml
Normal file
@ -0,0 +1,121 @@
|
||||
<refentry>
|
||||
<refmeta>
|
||||
<refentrytitle>V4L2_PIX_FMT_NV24 ('NV24'), V4L2_PIX_FMT_NV42 ('NV42')</refentrytitle>
|
||||
&manvol;
|
||||
</refmeta>
|
||||
<refnamediv>
|
||||
<refname id="V4L2-PIX-FMT-NV24"><constant>V4L2_PIX_FMT_NV24</constant></refname>
|
||||
<refname id="V4L2-PIX-FMT-NV42"><constant>V4L2_PIX_FMT_NV42</constant></refname>
|
||||
<refpurpose>Formats with full horizontal and vertical
|
||||
chroma resolutions, also known as YUV 4:4:4. One luminance and one
|
||||
chrominance plane with alternating chroma samples as opposed to
|
||||
<constant>V4L2_PIX_FMT_YVU420</constant></refpurpose>
|
||||
</refnamediv>
|
||||
<refsect1>
|
||||
<title>Description</title>
|
||||
|
||||
<para>These are two-plane versions of the YUV 4:4:4 format. The three
|
||||
components are separated into two sub-images or planes. The Y plane is
|
||||
first, with each Y sample stored in one byte per pixel. For
|
||||
<constant>V4L2_PIX_FMT_NV24</constant>, a combined CbCr plane
|
||||
immediately follows the Y plane in memory. The CbCr plane has the same
|
||||
width and height, in pixels, as the Y plane (and the image). Each line
|
||||
contains one CbCr pair per pixel, with each Cb and Cr sample stored in
|
||||
one byte. <constant>V4L2_PIX_FMT_NV42</constant> is the same except that
|
||||
the Cb and Cr samples are swapped, the CrCb plane starts with a Cr
|
||||
sample.</para>
|
||||
|
||||
<para>If the Y plane has pad bytes after each row, then the CbCr plane
|
||||
has twice as many pad bytes after its rows.</para>
|
||||
|
||||
<example>
|
||||
<title><constant>V4L2_PIX_FMT_NV24</constant> 4 × 4
|
||||
pixel image</title>
|
||||
|
||||
<formalpara>
|
||||
<title>Byte Order.</title>
|
||||
<para>Each cell is one byte.
|
||||
<informaltable frame="none">
|
||||
<tgroup cols="9" align="center">
|
||||
<colspec align="left" colwidth="2*" />
|
||||
<tbody valign="top">
|
||||
<row>
|
||||
<entry>start + 0:</entry>
|
||||
<entry>Y'<subscript>00</subscript></entry>
|
||||
<entry>Y'<subscript>01</subscript></entry>
|
||||
<entry>Y'<subscript>02</subscript></entry>
|
||||
<entry>Y'<subscript>03</subscript></entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>start + 4:</entry>
|
||||
<entry>Y'<subscript>10</subscript></entry>
|
||||
<entry>Y'<subscript>11</subscript></entry>
|
||||
<entry>Y'<subscript>12</subscript></entry>
|
||||
<entry>Y'<subscript>13</subscript></entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>start + 8:</entry>
|
||||
<entry>Y'<subscript>20</subscript></entry>
|
||||
<entry>Y'<subscript>21</subscript></entry>
|
||||
<entry>Y'<subscript>22</subscript></entry>
|
||||
<entry>Y'<subscript>23</subscript></entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>start + 12:</entry>
|
||||
<entry>Y'<subscript>30</subscript></entry>
|
||||
<entry>Y'<subscript>31</subscript></entry>
|
||||
<entry>Y'<subscript>32</subscript></entry>
|
||||
<entry>Y'<subscript>33</subscript></entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>start + 16:</entry>
|
||||
<entry>Cb<subscript>00</subscript></entry>
|
||||
<entry>Cr<subscript>00</subscript></entry>
|
||||
<entry>Cb<subscript>01</subscript></entry>
|
||||
<entry>Cr<subscript>01</subscript></entry>
|
||||
<entry>Cb<subscript>02</subscript></entry>
|
||||
<entry>Cr<subscript>02</subscript></entry>
|
||||
<entry>Cb<subscript>03</subscript></entry>
|
||||
<entry>Cr<subscript>03</subscript></entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>start + 24:</entry>
|
||||
<entry>Cb<subscript>10</subscript></entry>
|
||||
<entry>Cr<subscript>10</subscript></entry>
|
||||
<entry>Cb<subscript>11</subscript></entry>
|
||||
<entry>Cr<subscript>11</subscript></entry>
|
||||
<entry>Cb<subscript>12</subscript></entry>
|
||||
<entry>Cr<subscript>12</subscript></entry>
|
||||
<entry>Cb<subscript>13</subscript></entry>
|
||||
<entry>Cr<subscript>13</subscript></entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>start + 32:</entry>
|
||||
<entry>Cb<subscript>20</subscript></entry>
|
||||
<entry>Cr<subscript>20</subscript></entry>
|
||||
<entry>Cb<subscript>21</subscript></entry>
|
||||
<entry>Cr<subscript>21</subscript></entry>
|
||||
<entry>Cb<subscript>22</subscript></entry>
|
||||
<entry>Cr<subscript>22</subscript></entry>
|
||||
<entry>Cb<subscript>23</subscript></entry>
|
||||
<entry>Cr<subscript>23</subscript></entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>start + 40:</entry>
|
||||
<entry>Cb<subscript>30</subscript></entry>
|
||||
<entry>Cr<subscript>30</subscript></entry>
|
||||
<entry>Cb<subscript>31</subscript></entry>
|
||||
<entry>Cr<subscript>31</subscript></entry>
|
||||
<entry>Cb<subscript>32</subscript></entry>
|
||||
<entry>Cr<subscript>32</subscript></entry>
|
||||
<entry>Cb<subscript>33</subscript></entry>
|
||||
<entry>Cr<subscript>33</subscript></entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</informaltable>
|
||||
</para>
|
||||
</formalpara>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
@ -428,8 +428,11 @@ colorspace <constant>V4L2_COLORSPACE_SRGB</constant>.</para>
|
||||
<para>Bit 7 is the most significant bit. The value of a = alpha
|
||||
bits is undefined when reading from the driver, ignored when writing
|
||||
to the driver, except when alpha blending has been negotiated for a
|
||||
<link linkend="overlay">Video Overlay</link> or <link
|
||||
linkend="osd">Video Output Overlay</link>.</para>
|
||||
<link linkend="overlay">Video Overlay</link> or <link linkend="osd">
|
||||
Video Output Overlay</link> or when alpha component has been configured
|
||||
for a <link linkend="capture">Video Capture</link> by means of <link
|
||||
linkend="v4l2-alpha-component"> <constant>V4L2_CID_ALPHA_COMPONENT
|
||||
</constant> </link> control.</para>
|
||||
|
||||
<example>
|
||||
<title><constant>V4L2_PIX_FMT_BGR24</constant> 4 × 4 pixel
|
||||
@ -930,11 +933,3 @@ See &v4l-dvb; for access instructions.</para>
|
||||
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -234,11 +234,3 @@ linkend="osd">Video Output Overlay</link>.</para>
|
||||
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -81,11 +81,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -65,11 +65,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -65,11 +65,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -65,11 +65,3 @@ columns and rows.</para>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -118,11 +118,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -118,11 +118,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -79,11 +79,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -147,11 +147,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -131,11 +131,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -145,11 +145,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -147,11 +147,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -152,11 +152,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -151,11 +151,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -118,11 +118,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -118,11 +118,3 @@ pixel image</title>
|
||||
</example>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "pixfmt.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -714,6 +714,7 @@ information.</para>
|
||||
&sub-nv12m;
|
||||
&sub-nv12mt;
|
||||
&sub-nv16;
|
||||
&sub-nv24;
|
||||
&sub-m420;
|
||||
</section>
|
||||
|
||||
@ -890,6 +891,11 @@ kernel sources in the file <filename>Documentation/video4linux/cx2341x/README.hm
|
||||
<entry>'M310'</entry>
|
||||
<entry>Compressed BGGR Bayer format used by the gspca driver.</entry>
|
||||
</row>
|
||||
<row id="V4L2-PIX-FMT-JL2005BCD">
|
||||
<entry><constant>V4L2_PIX_FMT_JL2005BCD</constant></entry>
|
||||
<entry>'JL20'</entry>
|
||||
<entry>JPEG compressed RGGB Bayer format used by the gspca driver.</entry>
|
||||
</row>
|
||||
<row id="V4L2-PIX-FMT-OV511">
|
||||
<entry><constant>V4L2_PIX_FMT_OV511</constant></entry>
|
||||
<entry>'O511'</entry>
|
||||
@ -997,11 +1003,3 @@ the other bits are set to 0.</entry>
|
||||
</tgroup>
|
||||
</table>
|
||||
</section>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
321
Documentation/DocBook/media/v4l/selection-api.xml
Normal file
321
Documentation/DocBook/media/v4l/selection-api.xml
Normal file
@ -0,0 +1,321 @@
|
||||
<section id="selection-api">
|
||||
|
||||
<title>Experimental API for cropping, composing and scaling</title>
|
||||
|
||||
<note>
|
||||
<title>Experimental</title>
|
||||
|
||||
<para>This is an <link linkend="experimental">experimental</link>
|
||||
interface and may change in the future.</para>
|
||||
</note>
|
||||
|
||||
<section>
|
||||
<title>Introduction</title>
|
||||
|
||||
<para>Some video capture devices can sample a subsection of a picture and
|
||||
shrink or enlarge it to an image of arbitrary size. Next, the devices can
|
||||
insert the image into larger one. Some video output devices can crop part of an
|
||||
input image, scale it up or down and insert it at an arbitrary scan line and
|
||||
horizontal offset into a video signal. We call these abilities cropping,
|
||||
scaling and composing.</para>
|
||||
|
||||
<para>On a video <emphasis>capture</emphasis> device the source is a video
|
||||
signal, and the cropping target determine the area actually sampled. The sink
|
||||
is an image stored in a memory buffer. The composing area specifies which part
|
||||
of the buffer is actually written to by the hardware. </para>
|
||||
|
||||
<para>On a video <emphasis>output</emphasis> device the source is an image in a
|
||||
memory buffer, and the cropping target is a part of an image to be shown on a
|
||||
display. The sink is the display or the graphics screen. The application may
|
||||
select the part of display where the image should be displayed. The size and
|
||||
position of such a window is controlled by the compose target.</para>
|
||||
|
||||
<para>Rectangles for all cropping and composing targets are defined even if the
|
||||
device does supports neither cropping nor composing. Their size and position
|
||||
will be fixed in such a case. If the device does not support scaling then the
|
||||
cropping and composing rectangles have the same size.</para>
|
||||
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>Selection targets</title>
|
||||
|
||||
<figure id="sel-targets-capture">
|
||||
<title>Cropping and composing targets</title>
|
||||
<mediaobject>
|
||||
<imageobject>
|
||||
<imagedata fileref="selection.png" format="PNG" />
|
||||
</imageobject>
|
||||
<textobject>
|
||||
<phrase>Targets used by a cropping, composing and scaling
|
||||
process</phrase>
|
||||
</textobject>
|
||||
</mediaobject>
|
||||
</figure>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
|
||||
<title>Configuration</title>
|
||||
|
||||
<para>Applications can use the <link linkend="vidioc-g-selection">selection
|
||||
API</link> to select an area in a video signal or a buffer, and to query for
|
||||
default settings and hardware limits.</para>
|
||||
|
||||
<para>Video hardware can have various cropping, composing and scaling
|
||||
limitations. It may only scale up or down, support only discrete scaling
|
||||
factors, or have different scaling abilities in the horizontal and vertical
|
||||
directions. Also it may not support scaling at all. At the same time the
|
||||
cropping/composing rectangles may have to be aligned, and both the source and
|
||||
the sink may have arbitrary upper and lower size limits. Therefore, as usual,
|
||||
drivers are expected to adjust the requested parameters and return the actual
|
||||
values selected. An application can control the rounding behaviour using <link
|
||||
linkend="v4l2-sel-flags"> constraint flags </link>.</para>
|
||||
|
||||
<section>
|
||||
|
||||
<title>Configuration of video capture</title>
|
||||
|
||||
<para>See figure <xref linkend="sel-targets-capture" /> for examples of the
|
||||
selection targets available for a video capture device. It is recommended to
|
||||
configure the cropping targets before to the composing targets.</para>
|
||||
|
||||
<para>The range of coordinates of the top left corner, width and height of
|
||||
areas that can be sampled is given by the <constant> V4L2_SEL_TGT_CROP_BOUNDS
|
||||
</constant> target. It is recommended for the driver developers to put the
|
||||
top/left corner at position <constant> (0,0) </constant>. The rectangle's
|
||||
coordinates are expressed in pixels.</para>
|
||||
|
||||
<para>The top left corner, width and height of the source rectangle, that is
|
||||
the area actually sampled, is given by the <constant> V4L2_SEL_TGT_CROP_ACTIVE
|
||||
</constant> target. It uses the same coordinate system as <constant>
|
||||
V4L2_SEL_TGT_CROP_BOUNDS </constant>. The active cropping area must lie
|
||||
completely inside the capture boundaries. The driver may further adjust the
|
||||
requested size and/or position according to hardware limitations.</para>
|
||||
|
||||
<para>Each capture device has a default source rectangle, given by the
|
||||
<constant> V4L2_SEL_TGT_CROP_DEFAULT </constant> target. This rectangle shall
|
||||
over what the driver writer considers the complete picture. Drivers shall set
|
||||
the active crop rectangle to the default when the driver is first loaded, but
|
||||
not later.</para>
|
||||
|
||||
<para>The composing targets refer to a memory buffer. The limits of composing
|
||||
coordinates are obtained using <constant> V4L2_SEL_TGT_COMPOSE_BOUNDS
|
||||
</constant>. All coordinates are expressed in pixels. The rectangle's top/left
|
||||
corner must be located at position <constant> (0,0) </constant>. The width and
|
||||
height are equal to the image size set by <constant> VIDIOC_S_FMT </constant>.
|
||||
</para>
|
||||
|
||||
<para>The part of a buffer into which the image is inserted by the hardware is
|
||||
controlled by the <constant> V4L2_SEL_TGT_COMPOSE_ACTIVE </constant> target.
|
||||
The rectangle's coordinates are also expressed in the same coordinate system as
|
||||
the bounds rectangle. The composing rectangle must lie completely inside bounds
|
||||
rectangle. The driver must adjust the composing rectangle to fit to the
|
||||
bounding limits. Moreover, the driver can perform other adjustments according
|
||||
to hardware limitations. The application can control rounding behaviour using
|
||||
<link linkend="v4l2-sel-flags"> constraint flags </link>.</para>
|
||||
|
||||
<para>For capture devices the default composing rectangle is queried using
|
||||
<constant> V4L2_SEL_TGT_COMPOSE_DEFAULT </constant>. It is usually equal to the
|
||||
bounding rectangle.</para>
|
||||
|
||||
<para>The part of a buffer that is modified by the hardware is given by
|
||||
<constant> V4L2_SEL_TGT_COMPOSE_PADDED </constant>. It contains all pixels
|
||||
defined using <constant> V4L2_SEL_TGT_COMPOSE_ACTIVE </constant> plus all
|
||||
padding data modified by hardware during insertion process. All pixels outside
|
||||
this rectangle <emphasis>must not</emphasis> be changed by the hardware. The
|
||||
content of pixels that lie inside the padded area but outside active area is
|
||||
undefined. The application can use the padded and active rectangles to detect
|
||||
where the rubbish pixels are located and remove them if needed.</para>
|
||||
|
||||
</section>
|
||||
|
||||
<section>
|
||||
|
||||
<title>Configuration of video output</title>
|
||||
|
||||
<para>For output devices targets and ioctls are used similarly to the video
|
||||
capture case. The <emphasis> composing </emphasis> rectangle refers to the
|
||||
insertion of an image into a video signal. The cropping rectangles refer to a
|
||||
memory buffer. It is recommended to configure the composing targets before to
|
||||
the cropping targets.</para>
|
||||
|
||||
<para>The cropping targets refer to the memory buffer that contains an image to
|
||||
be inserted into a video signal or graphical screen. The limits of cropping
|
||||
coordinates are obtained using <constant> V4L2_SEL_TGT_CROP_BOUNDS </constant>.
|
||||
All coordinates are expressed in pixels. The top/left corner is always point
|
||||
<constant> (0,0) </constant>. The width and height is equal to the image size
|
||||
specified using <constant> VIDIOC_S_FMT </constant> ioctl.</para>
|
||||
|
||||
<para>The top left corner, width and height of the source rectangle, that is
|
||||
the area from which image date are processed by the hardware, is given by the
|
||||
<constant> V4L2_SEL_TGT_CROP_ACTIVE </constant>. Its coordinates are expressed
|
||||
in in the same coordinate system as the bounds rectangle. The active cropping
|
||||
area must lie completely inside the crop boundaries and the driver may further
|
||||
adjust the requested size and/or position according to hardware
|
||||
limitations.</para>
|
||||
|
||||
<para>For output devices the default cropping rectangle is queried using
|
||||
<constant> V4L2_SEL_TGT_CROP_DEFAULT </constant>. It is usually equal to the
|
||||
bounding rectangle.</para>
|
||||
|
||||
<para>The part of a video signal or graphics display where the image is
|
||||
inserted by the hardware is controlled by <constant>
|
||||
V4L2_SEL_TGT_COMPOSE_ACTIVE </constant> target. The rectangle's coordinates
|
||||
are expressed in pixels. The composing rectangle must lie completely inside the
|
||||
bounds rectangle. The driver must adjust the area to fit to the bounding
|
||||
limits. Moreover, the driver can perform other adjustments according to
|
||||
hardware limitations. </para>
|
||||
|
||||
<para>The device has a default composing rectangle, given by the <constant>
|
||||
V4L2_SEL_TGT_COMPOSE_DEFAULT </constant> target. This rectangle shall cover what
|
||||
the driver writer considers the complete picture. It is recommended for the
|
||||
driver developers to put the top/left corner at position <constant> (0,0)
|
||||
</constant>. Drivers shall set the active composing rectangle to the default
|
||||
one when the driver is first loaded.</para>
|
||||
|
||||
<para>The devices may introduce additional content to video signal other than
|
||||
an image from memory buffers. It includes borders around an image. However,
|
||||
such a padded area is driver-dependent feature not covered by this document.
|
||||
Driver developers are encouraged to keep padded rectangle equal to active one.
|
||||
The padded target is accessed by the <constant> V4L2_SEL_TGT_COMPOSE_PADDED
|
||||
</constant> identifier. It must contain all pixels from the <constant>
|
||||
V4L2_SEL_TGT_COMPOSE_ACTIVE </constant> target.</para>
|
||||
|
||||
</section>
|
||||
|
||||
<section>
|
||||
|
||||
<title>Scaling control.</title>
|
||||
|
||||
<para>An application can detect if scaling is performed by comparing the width
|
||||
and the height of rectangles obtained using <constant> V4L2_SEL_TGT_CROP_ACTIVE
|
||||
</constant> and <constant> V4L2_SEL_TGT_COMPOSE_ACTIVE </constant> targets. If
|
||||
these are not equal then the scaling is applied. The application can compute
|
||||
the scaling ratios using these values.</para>
|
||||
|
||||
</section>
|
||||
|
||||
</section>
|
||||
|
||||
<section>
|
||||
|
||||
<title>Comparison with old cropping API.</title>
|
||||
|
||||
<para>The selection API was introduced to cope with deficiencies of previous
|
||||
<link linkend="crop"> API </link>, that was designed to control simple capture
|
||||
devices. Later the cropping API was adopted by video output drivers. The ioctls
|
||||
are used to select a part of the display were the video signal is inserted. It
|
||||
should be considered as an API abuse because the described operation is
|
||||
actually the composing. The selection API makes a clear distinction between
|
||||
composing and cropping operations by setting the appropriate targets. The V4L2
|
||||
API lacks any support for composing to and cropping from an image inside a
|
||||
memory buffer. The application could configure a capture device to fill only a
|
||||
part of an image by abusing V4L2 API. Cropping a smaller image from a larger
|
||||
one is achieved by setting the field <structfield>
|
||||
&v4l2-pix-format;::bytesperline </structfield>. Introducing an image offsets
|
||||
could be done by modifying field <structfield> &v4l2-buffer;::m:userptr
|
||||
</structfield> before calling <constant> VIDIOC_QBUF </constant>. Those
|
||||
operations should be avoided because they are not portable (endianness), and do
|
||||
not work for macroblock and Bayer formats and mmap buffers. The selection API
|
||||
deals with configuration of buffer cropping/composing in a clear, intuitive and
|
||||
portable way. Next, with the selection API the concepts of the padded target
|
||||
and constraints flags are introduced. Finally, <structname> &v4l2-crop;
|
||||
</structname> and <structname> &v4l2-cropcap; </structname> have no reserved
|
||||
fields. Therefore there is no way to extend their functionality. The new
|
||||
<structname> &v4l2-selection; </structname> provides a lot of place for future
|
||||
extensions. Driver developers are encouraged to implement only selection API.
|
||||
The former cropping API would be simulated using the new one. </para>
|
||||
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>Examples</title>
|
||||
<example>
|
||||
<title>Resetting the cropping parameters</title>
|
||||
|
||||
<para>(A video capture device is assumed; change <constant>
|
||||
V4L2_BUF_TYPE_VIDEO_CAPTURE </constant> for other devices; change target to
|
||||
<constant> V4L2_SEL_TGT_COMPOSE_* </constant> family to configure composing
|
||||
area)</para>
|
||||
|
||||
<programlisting>
|
||||
|
||||
&v4l2-selection; sel = {
|
||||
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
|
||||
.target = V4L2_SEL_TGT_CROP_DEFAULT,
|
||||
};
|
||||
ret = ioctl(fd, &VIDIOC-G-SELECTION;, &sel);
|
||||
if (ret)
|
||||
exit(-1);
|
||||
sel.target = V4L2_SEL_TGT_CROP_ACTIVE;
|
||||
ret = ioctl(fd, &VIDIOC-S-SELECTION;, &sel);
|
||||
if (ret)
|
||||
exit(-1);
|
||||
|
||||
</programlisting>
|
||||
</example>
|
||||
|
||||
<example>
|
||||
<title>Simple downscaling</title>
|
||||
<para>Setting a composing area on output of size of <emphasis> at most
|
||||
</emphasis> half of limit placed at a center of a display.</para>
|
||||
<programlisting>
|
||||
|
||||
&v4l2-selection; sel = {
|
||||
.type = V4L2_BUF_TYPE_VIDEO_OUTPUT,
|
||||
.target = V4L2_SEL_TGT_COMPOSE_BOUNDS,
|
||||
};
|
||||
struct v4l2_rect r;
|
||||
|
||||
ret = ioctl(fd, &VIDIOC-G-SELECTION;, &sel);
|
||||
if (ret)
|
||||
exit(-1);
|
||||
/* setting smaller compose rectangle */
|
||||
r.width = sel.r.width / 2;
|
||||
r.height = sel.r.height / 2;
|
||||
r.left = sel.r.width / 4;
|
||||
r.top = sel.r.height / 4;
|
||||
sel.r = r;
|
||||
sel.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
|
||||
sel.flags = V4L2_SEL_FLAG_LE;
|
||||
ret = ioctl(fd, &VIDIOC-S-SELECTION;, &sel);
|
||||
if (ret)
|
||||
exit(-1);
|
||||
|
||||
</programlisting>
|
||||
</example>
|
||||
|
||||
<example>
|
||||
<title>Querying for scaling factors</title>
|
||||
<para>A video output device is assumed; change <constant>
|
||||
V4L2_BUF_TYPE_VIDEO_OUTPUT </constant> for other devices</para>
|
||||
<programlisting>
|
||||
|
||||
&v4l2-selection; compose = {
|
||||
.type = V4L2_BUF_TYPE_VIDEO_OUTPUT,
|
||||
.target = V4L2_SEL_TGT_COMPOSE_ACTIVE,
|
||||
};
|
||||
&v4l2-selection; crop = {
|
||||
.type = V4L2_BUF_TYPE_VIDEO_OUTPUT,
|
||||
.target = V4L2_SEL_TGT_CROP_ACTIVE,
|
||||
};
|
||||
double hscale, vscale;
|
||||
|
||||
ret = ioctl(fd, &VIDIOC-G-SELECTION;, &compose);
|
||||
if (ret)
|
||||
exit(-1);
|
||||
ret = ioctl(fd, &VIDIOC-G-SELECTION;, &crop);
|
||||
if (ret)
|
||||
exit(-1);
|
||||
|
||||
/* computing scaling factors */
|
||||
hscale = (double)compose.r.width / crop.r.width;
|
||||
vscale = (double)compose.r.height / crop.r.height;
|
||||
|
||||
</programlisting>
|
||||
</example>
|
||||
|
||||
</section>
|
||||
|
||||
</section>
|
@ -501,6 +501,7 @@ and discussions on the V4L mailing list.</revremark>
|
||||
&sub-g-output;
|
||||
&sub-g-parm;
|
||||
&sub-g-priority;
|
||||
&sub-g-selection;
|
||||
&sub-g-sliced-vbi-cap;
|
||||
&sub-g-std;
|
||||
&sub-g-tuner;
|
||||
|
@ -228,11 +228,3 @@ is out of bounds.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -156,11 +156,3 @@ bounds.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -311,11 +311,3 @@ out of bounds.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -196,11 +196,3 @@ is out of bounds.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -381,11 +381,3 @@ is out of bounds.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -127,11 +127,3 @@ this control belongs to.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -183,7 +183,12 @@ applications must set the array to zero.</entry>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>ctrl_class</structfield></entry>
|
||||
<entry>The control class to which all controls belong, see
|
||||
<xref linkend="ctrl-class" />.</entry>
|
||||
<xref linkend="ctrl-class" />. Drivers that use a kernel framework for handling
|
||||
controls will also accept a value of 0 here, meaning that the controls can
|
||||
belong to any control class. Whether drivers support this can be tested by setting
|
||||
<structfield>ctrl_class</structfield> to 0 and calling <constant>VIDIOC_TRY_EXT_CTRLS</constant>
|
||||
with a <structfield>count</structfield> of 0. If that succeeds, then the driver
|
||||
supports this feature.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
@ -194,10 +199,13 @@ also be zero.</entry>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>error_idx</structfield></entry>
|
||||
<entry>Set by the driver in case of an error. It is the
|
||||
index of the control causing the error or equal to 'count' when the
|
||||
error is not associated with a particular control. Undefined when the
|
||||
ioctl returns 0 (success).</entry>
|
||||
<entry>Set by the driver in case of an error. If it is equal
|
||||
to <structfield>count</structfield>, then no actual changes were made to
|
||||
controls. In other words, the error was not associated with setting a particular
|
||||
control. If it is another value, then only the controls up to <structfield>error_idx-1</structfield>
|
||||
were modified and control <structfield>error_idx</structfield> is the one that
|
||||
caused the error. The <structfield>error_idx</structfield> value is undefined
|
||||
if the ioctl returned 0 (success).</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
@ -312,10 +320,3 @@ to store the payload and this error code is returned.</para>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -295,7 +295,8 @@ set this field to zero.</entry>
|
||||
<entry>The device is capable of non-destructive overlays.
|
||||
When the driver clears this flag, only destructive overlays are
|
||||
supported. There are no drivers yet which support both destructive and
|
||||
non-destructive overlays.</entry>
|
||||
non-destructive overlays. Video Output Overlays are in practice always
|
||||
non-destructive.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_FBUF_CAP_CHROMAKEY</constant></entry>
|
||||
@ -339,8 +340,8 @@ blending makes no sense for destructive overlays.</entry>
|
||||
<row>
|
||||
<entry><constant>V4L2_FBUF_CAP_SRC_CHROMAKEY</constant></entry>
|
||||
<entry>0x0080</entry>
|
||||
<entry>The device supports Source Chroma-keying. Framebuffer pixels
|
||||
with the chroma-key colors are replaced by video pixels, which is exactly opposite of
|
||||
<entry>The device supports Source Chroma-keying. Video pixels
|
||||
with the chroma-key colors are replaced by framebuffer pixels, which is exactly opposite of
|
||||
<constant>V4L2_FBUF_CAP_CHROMAKEY</constant></entry>
|
||||
</row>
|
||||
</tbody>
|
||||
@ -356,21 +357,27 @@ with the chroma-key colors are replaced by video pixels, which is exactly opposi
|
||||
<entry><constant>V4L2_FBUF_FLAG_PRIMARY</constant></entry>
|
||||
<entry>0x0001</entry>
|
||||
<entry>The framebuffer is the primary graphics surface.
|
||||
In other words, the overlay is destructive. [?]</entry>
|
||||
In other words, the overlay is destructive. This flag is typically set by any
|
||||
driver that doesn't have the <constant>V4L2_FBUF_CAP_EXTERNOVERLAY</constant>
|
||||
capability and it is cleared otherwise.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_FBUF_FLAG_OVERLAY</constant></entry>
|
||||
<entry>0x0002</entry>
|
||||
<entry>The frame buffer is an overlay surface the same
|
||||
size as the capture. [?]</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry spanname="hspan">The purpose of
|
||||
<constant>V4L2_FBUF_FLAG_PRIMARY</constant> and
|
||||
<constant>V4L2_FBUF_FLAG_OVERLAY</constant> was never quite clear.
|
||||
Most drivers seem to ignore these flags. For compatibility with the
|
||||
<wordasword>bttv</wordasword> driver applications should set the
|
||||
<constant>V4L2_FBUF_FLAG_OVERLAY</constant> flag.</entry>
|
||||
<entry>If this flag is set for a video capture device, then the
|
||||
driver will set the initial overlay size to cover the full framebuffer size,
|
||||
otherwise the existing overlay size (as set by &VIDIOC-S-FMT;) will be used.
|
||||
|
||||
Only one video capture driver (bttv) supports this flag. The use of this flag
|
||||
for capture devices is deprecated. There is no way to detect which drivers
|
||||
support this flag, so the only reliable method of setting the overlay size is
|
||||
through &VIDIOC-S-FMT;.
|
||||
|
||||
If this flag is set for a video output device, then the video output overlay
|
||||
window is relative to the top-left corner of the framebuffer and restricted
|
||||
to the size of the framebuffer. If it is cleared, then the video output
|
||||
overlay window is relative to the video output display.
|
||||
</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_FBUF_FLAG_CHROMAKEY</constant></entry>
|
||||
|
@ -98,8 +98,11 @@ the &v4l2-output; <structfield>modulator</structfield> field and the
|
||||
<entry>&v4l2-tuner-type;</entry>
|
||||
<entry><structfield>type</structfield></entry>
|
||||
<entry>The tuner type. This is the same value as in the
|
||||
&v4l2-tuner; <structfield>type</structfield> field. The field is not
|
||||
applicable to modulators, &ie; ignored by drivers.</entry>
|
||||
&v4l2-tuner; <structfield>type</structfield> field. The type must be set
|
||||
to <constant>V4L2_TUNER_RADIO</constant> for <filename>/dev/radioX</filename>
|
||||
device nodes, and to <constant>V4L2_TUNER_ANALOG_TV</constant>
|
||||
for all others. The field is not applicable to modulators, &ie; ignored
|
||||
by drivers.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
@ -135,11 +138,3 @@ wrong.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -61,8 +61,8 @@ desired input in an integer and call the
|
||||
<constant>VIDIOC_S_INPUT</constant> ioctl with a pointer to this
|
||||
integer. Side effects are possible. For example inputs may support
|
||||
different video standards, so the driver may implicitly switch the
|
||||
current standard. It is good practice to select an input before
|
||||
querying or negotiating any other parameters.</para>
|
||||
current standard. Because of these possible side effects applications
|
||||
must select an input before querying or negotiating any other parameters.</para>
|
||||
|
||||
<para>Information about video inputs is available using the
|
||||
&VIDIOC-ENUMINPUT; ioctl.</para>
|
||||
|
@ -236,11 +236,3 @@ mode.</entry>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -61,8 +61,9 @@ desired output in an integer and call the
|
||||
<constant>VIDIOC_S_OUTPUT</constant> ioctl with a pointer to this integer.
|
||||
Side effects are possible. For example outputs may support different
|
||||
video standards, so the driver may implicitly switch the current
|
||||
standard. It is good practice to select an output before querying or
|
||||
negotiating any other parameters.</para>
|
||||
standard.
|
||||
standard. Because of these possible side effects applications
|
||||
must select an output before querying or negotiating any other parameters.</para>
|
||||
|
||||
<para>Information about video outputs is available using the
|
||||
&VIDIOC-ENUMOUTPUT; ioctl.</para>
|
||||
|
@ -133,11 +133,3 @@ priority.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
304
Documentation/DocBook/media/v4l/vidioc-g-selection.xml
Normal file
304
Documentation/DocBook/media/v4l/vidioc-g-selection.xml
Normal file
@ -0,0 +1,304 @@
|
||||
<refentry id="vidioc-g-selection">
|
||||
|
||||
<refmeta>
|
||||
<refentrytitle>ioctl VIDIOC_G_SELECTION, VIDIOC_S_SELECTION</refentrytitle>
|
||||
&manvol;
|
||||
</refmeta>
|
||||
|
||||
<refnamediv>
|
||||
<refname>VIDIOC_G_SELECTION</refname>
|
||||
<refname>VIDIOC_S_SELECTION</refname>
|
||||
<refpurpose>Get or set one of the selection rectangles</refpurpose>
|
||||
</refnamediv>
|
||||
|
||||
<refsynopsisdiv>
|
||||
<funcsynopsis>
|
||||
<funcprototype>
|
||||
<funcdef>int <function>ioctl</function></funcdef>
|
||||
<paramdef>int <parameter>fd</parameter></paramdef>
|
||||
<paramdef>int <parameter>request</parameter></paramdef>
|
||||
<paramdef>struct v4l2_selection *<parameter>argp</parameter></paramdef>
|
||||
</funcprototype>
|
||||
</funcsynopsis>
|
||||
</refsynopsisdiv>
|
||||
|
||||
<refsect1>
|
||||
<title>Arguments</title>
|
||||
|
||||
<variablelist>
|
||||
<varlistentry>
|
||||
<term><parameter>fd</parameter></term>
|
||||
<listitem>
|
||||
<para>&fd;</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term><parameter>request</parameter></term>
|
||||
<listitem>
|
||||
<para>VIDIOC_G_SELECTION, VIDIOC_S_SELECTION</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term><parameter>argp</parameter></term>
|
||||
<listitem>
|
||||
<para></para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
|
||||
<refsect1>
|
||||
<title>Description</title>
|
||||
|
||||
<note>
|
||||
<title>Experimental</title>
|
||||
<para>This is an <link linkend="experimental"> experimental </link>
|
||||
interface and may change in the future.</para>
|
||||
</note>
|
||||
|
||||
<para>The ioctls are used to query and configure selection rectangles.</para>
|
||||
|
||||
<para> To query the cropping (composing) rectangle set <structfield>
|
||||
&v4l2-selection;::type </structfield> to the respective buffer type. Do not
|
||||
use multiplanar buffers. Use <constant> V4L2_BUF_TYPE_VIDEO_CAPTURE
|
||||
</constant> instead of <constant> V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE
|
||||
</constant>. Use <constant> V4L2_BUF_TYPE_VIDEO_OUTPUT </constant> instead of
|
||||
<constant> V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE </constant>. The next step is
|
||||
setting <structfield> &v4l2-selection;::target </structfield> to value
|
||||
<constant> V4L2_SEL_TGT_CROP_ACTIVE </constant> (<constant>
|
||||
V4L2_SEL_TGT_COMPOSE_ACTIVE </constant>). Please refer to table <xref
|
||||
linkend="v4l2-sel-target" /> or <xref linkend="selection-api" /> for additional
|
||||
targets. Fields <structfield> &v4l2-selection;::flags </structfield> and
|
||||
<structfield> &v4l2-selection;::reserved </structfield> are ignored and they
|
||||
must be filled with zeros. The driver fills the rest of the structure or
|
||||
returns &EINVAL; if incorrect buffer type or target was used. If cropping
|
||||
(composing) is not supported then the active rectangle is not mutable and it is
|
||||
always equal to the bounds rectangle. Finally, structure <structfield>
|
||||
&v4l2-selection;::r </structfield> is filled with the current cropping
|
||||
(composing) coordinates. The coordinates are expressed in driver-dependent
|
||||
units. The only exception are rectangles for images in raw formats, whose
|
||||
coordinates are always expressed in pixels. </para>
|
||||
|
||||
<para> To change the cropping (composing) rectangle set <structfield>
|
||||
&v4l2-selection;::type </structfield> to the respective buffer type. Do not
|
||||
use multiplanar buffers. Use <constant> V4L2_BUF_TYPE_VIDEO_CAPTURE
|
||||
</constant> instead of <constant> V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE
|
||||
</constant>. Use <constant> V4L2_BUF_TYPE_VIDEO_OUTPUT </constant> instead of
|
||||
<constant> V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE </constant>. The next step is
|
||||
setting <structfield> &v4l2-selection;::target </structfield> to value
|
||||
<constant> V4L2_SEL_TGT_CROP_ACTIVE </constant> (<constant>
|
||||
V4L2_SEL_TGT_COMPOSE_ACTIVE </constant>). Please refer to table <xref
|
||||
linkend="v4l2-sel-target" /> or <xref linkend="selection-api" /> for additional
|
||||
targets. Set desired active area into the field <structfield>
|
||||
&v4l2-selection;::r </structfield>. Field <structfield>
|
||||
&v4l2-selection;::reserved </structfield> is ignored and must be filled with
|
||||
zeros. The driver may adjust the rectangle coordinates. An application may
|
||||
introduce constraints to control rounding behaviour. Set the field
|
||||
<structfield> &v4l2-selection;::flags </structfield> to one of values:
|
||||
|
||||
<itemizedlist>
|
||||
<listitem>
|
||||
<para><constant>0</constant> - The driver can adjust the rectangle size freely
|
||||
and shall choose a crop/compose rectangle as close as possible to the requested
|
||||
one.</para>
|
||||
</listitem>
|
||||
<listitem>
|
||||
<para><constant>V4L2_SEL_FLAG_GE</constant> - The driver is not allowed to
|
||||
shrink the rectangle. The original rectangle must lay inside the adjusted
|
||||
one.</para>
|
||||
</listitem>
|
||||
<listitem>
|
||||
<para><constant>V4L2_SEL_FLAG_LE</constant> - The driver is not allowed to
|
||||
enlarge the rectangle. The adjusted rectangle must lay inside the original
|
||||
one.</para>
|
||||
</listitem>
|
||||
<listitem>
|
||||
<para><constant>V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE</constant> - The driver
|
||||
must choose the size exactly the same as in the requested rectangle.</para>
|
||||
</listitem>
|
||||
</itemizedlist>
|
||||
|
||||
Please refer to <xref linkend="sel-const-adjust" />.
|
||||
|
||||
</para>
|
||||
|
||||
<para> The driver may have to adjusts the requested dimensions against hardware
|
||||
limits and other parts as the pipeline, i.e. the bounds given by the
|
||||
capture/output window or TV display. The closest possible values of horizontal
|
||||
and vertical offset and sizes are chosen according to following priority:
|
||||
|
||||
<orderedlist>
|
||||
<listitem>
|
||||
<para>Satisfy constraints from <structfield>&v4l2-selection;::flags</structfield>.</para>
|
||||
</listitem>
|
||||
<listitem>
|
||||
<para>Adjust width, height, left, and top to hardware limits and alignments.</para>
|
||||
</listitem>
|
||||
<listitem>
|
||||
<para>Keep center of adjusted rectangle as close as possible to the original one.</para>
|
||||
</listitem>
|
||||
<listitem>
|
||||
<para>Keep width and height as close as possible to original ones.</para>
|
||||
</listitem>
|
||||
<listitem>
|
||||
<para>Keep horizontal and vertical offset as close as possible to original ones.</para>
|
||||
</listitem>
|
||||
</orderedlist>
|
||||
|
||||
On success the field <structfield> &v4l2-selection;::r </structfield> contains
|
||||
the adjusted rectangle. When the parameters are unsuitable the application may
|
||||
modify the cropping (composing) or image parameters and repeat the cycle until
|
||||
satisfactory parameters have been negotiated. If constraints flags have to be
|
||||
violated at then ERANGE is returned. The error indicates that <emphasis> there
|
||||
exist no rectangle </emphasis> that satisfies the constraints.</para>
|
||||
|
||||
</refsect1>
|
||||
|
||||
<refsect1>
|
||||
<table frame="none" pgwide="1" id="v4l2-sel-target">
|
||||
<title>Selection targets.</title>
|
||||
<tgroup cols="3">
|
||||
&cs-def;
|
||||
<tbody valign="top">
|
||||
<row>
|
||||
<entry><constant>V4L2_SEL_TGT_CROP_ACTIVE</constant></entry>
|
||||
<entry>0</entry>
|
||||
<entry>area that is currently cropped by hardware</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_SEL_TGT_CROP_DEFAULT</constant></entry>
|
||||
<entry>1</entry>
|
||||
<entry>suggested cropping rectangle that covers the "whole picture"</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_SEL_TGT_CROP_BOUNDS</constant></entry>
|
||||
<entry>2</entry>
|
||||
<entry>limits for the cropping rectangle</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_SEL_TGT_COMPOSE_ACTIVE</constant></entry>
|
||||
<entry>256</entry>
|
||||
<entry>area to which data are composed by hardware</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_SEL_TGT_COMPOSE_DEFAULT</constant></entry>
|
||||
<entry>257</entry>
|
||||
<entry>suggested composing rectangle that covers the "whole picture"</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_SEL_TGT_COMPOSE_BOUNDS</constant></entry>
|
||||
<entry>258</entry>
|
||||
<entry>limits for the composing rectangle</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_SEL_TGT_COMPOSE_PADDED</constant></entry>
|
||||
<entry>259</entry>
|
||||
<entry>the active area and all padding pixels that are inserted or modified by the hardware</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</table>
|
||||
</refsect1>
|
||||
|
||||
<refsect1>
|
||||
<table frame="none" pgwide="1" id="v4l2-sel-flags">
|
||||
<title>Selection constraint flags</title>
|
||||
<tgroup cols="3">
|
||||
&cs-def;
|
||||
<tbody valign="top">
|
||||
<row>
|
||||
<entry><constant>V4L2_SEL_FLAG_GE</constant></entry>
|
||||
<entry>0x00000001</entry>
|
||||
<entry>indicate that adjusted rectangle must contain a rectangle from <structfield>&v4l2-selection;::r</structfield></entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_SEL_FLAG_LE</constant></entry>
|
||||
<entry>0x00000002</entry>
|
||||
<entry>indicate that adjusted rectangle must be inside a rectangle from <structfield>&v4l2-selection;::r</structfield></entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</table>
|
||||
</refsect1>
|
||||
|
||||
<section>
|
||||
<figure id="sel-const-adjust">
|
||||
<title>Size adjustments with constraint flags.</title>
|
||||
<mediaobject>
|
||||
<imageobject>
|
||||
<imagedata fileref="constraints.png" format="PNG" />
|
||||
</imageobject>
|
||||
<textobject>
|
||||
<phrase>Behaviour of rectangle adjustment for different constraint
|
||||
flags.</phrase>
|
||||
</textobject>
|
||||
</mediaobject>
|
||||
</figure>
|
||||
</section>
|
||||
|
||||
<refsect1>
|
||||
<table pgwide="1" frame="none" id="v4l2-selection">
|
||||
<title>struct <structname>v4l2_selection</structname></title>
|
||||
<tgroup cols="3">
|
||||
&cs-str;
|
||||
<tbody valign="top">
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>type</structfield></entry>
|
||||
<entry>Type of the buffer (from &v4l2-buf-type;)</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>target</structfield></entry>
|
||||
<entry>used to select between <link linkend="v4l2-sel-target"> cropping and composing rectangles </link></entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>flags</structfield></entry>
|
||||
<entry>control over coordinates adjustments, refer to <link linkend="v4l2-sel-flags">selection flags</link></entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>&v4l2-rect;</entry>
|
||||
<entry><structfield>r</structfield></entry>
|
||||
<entry>selection rectangle</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>reserved[9]</structfield></entry>
|
||||
<entry>Reserved fields for future use</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</table>
|
||||
</refsect1>
|
||||
|
||||
<refsect1>
|
||||
&return-value;
|
||||
<variablelist>
|
||||
<varlistentry>
|
||||
<term><errorcode>EINVAL</errorcode></term>
|
||||
<listitem>
|
||||
<para>The buffer <structfield> &v4l2-selection;::type </structfield>
|
||||
or <structfield> &v4l2-selection;::target </structfield> is not supported, or
|
||||
the <structfield> &v4l2-selection;::flags </structfield> are invalid.</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term><errorcode>ERANGE</errorcode></term>
|
||||
<listitem>
|
||||
<para>it is not possible to adjust a rectangle <structfield>
|
||||
&v4l2-selection;::r </structfield> that satisfies all contraints from
|
||||
<structfield> &v4l2-selection;::flags </structfield>.</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term><errorcode>EBUSY</errorcode></term>
|
||||
<listitem>
|
||||
<para>it is not possible to apply change of selection rectangle at the moment.
|
||||
Usually because streaming is in progress.</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
|
||||
</refentry>
|
@ -88,11 +88,3 @@ standards.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -318,6 +318,16 @@ standard.</para><!-- FIXME what if PAL+NTSC and Bi but not SAP? --></entry>
|
||||
<entry>RDS capture is supported. This capability is only valid for
|
||||
radio tuners.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_TUNER_CAP_RDS_BLOCK_IO</constant></entry>
|
||||
<entry>0x0100</entry>
|
||||
<entry>The RDS data is passed as unparsed RDS blocks.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_TUNER_CAP_RDS_CONTROLS</constant></entry>
|
||||
<entry>0x0200</entry>
|
||||
<entry>The RDS data is parsed by the hardware and set via controls.</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</table>
|
||||
@ -525,11 +535,3 @@ out of bounds.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -100,11 +100,3 @@ supported, or the <structfield>index</structfield> is out of bounds.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -443,11 +443,3 @@ or this particular menu item is not supported by the driver.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -125,11 +125,3 @@ wrong.</para>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
@ -404,7 +404,7 @@
|
||||
/* SNDRV_CARDS: maximum number of cards supported by this module */
|
||||
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
|
||||
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
|
||||
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
|
||||
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
|
||||
|
||||
/* definition of the chip-specific record */
|
||||
struct mychip {
|
||||
|
@ -47,20 +47,53 @@ directory apei/einj. The following files are provided.
|
||||
|
||||
- param1
|
||||
This file is used to set the first error parameter value. Effect of
|
||||
parameter depends on error_type specified. For memory error, this is
|
||||
physical memory address. Only available if param_extension module
|
||||
parameter is specified.
|
||||
parameter depends on error_type specified.
|
||||
|
||||
- param2
|
||||
This file is used to set the second error parameter value. Effect of
|
||||
parameter depends on error_type specified. For memory error, this is
|
||||
physical memory address mask. Only available if param_extension
|
||||
module parameter is specified.
|
||||
parameter depends on error_type specified.
|
||||
|
||||
BIOS versions based in the ACPI 4.0 specification have limited options
|
||||
to control where the errors are injected. Your BIOS may support an
|
||||
extension (enabled with the param_extension=1 module parameter, or
|
||||
boot command line einj.param_extension=1). This allows the address
|
||||
and mask for memory injections to be specified by the param1 and
|
||||
param2 files in apei/einj.
|
||||
|
||||
BIOS versions using the ACPI 5.0 specification have more control over
|
||||
the target of the injection. For processor related errors (type 0x1,
|
||||
0x2 and 0x4) the APICID of the target should be provided using the
|
||||
param1 file in apei/einj. For memory errors (type 0x8, 0x10 and 0x20)
|
||||
the address is set using param1 with a mask in param2 (0x0 is equivalent
|
||||
to all ones). For PCI express errors (type 0x40, 0x80 and 0x100) the
|
||||
segment, bus, device and function are specified using param1:
|
||||
|
||||
31 24 23 16 15 11 10 8 7 0
|
||||
+-------------------------------------------------+
|
||||
| segment | bus | device | function | reserved |
|
||||
+-------------------------------------------------+
|
||||
|
||||
An ACPI 5.0 BIOS may also allow vendor specific errors to be injected.
|
||||
In this case a file named vendor will contain identifying information
|
||||
from the BIOS that hopefully will allow an application wishing to use
|
||||
the vendor specific extension to tell that they are running on a BIOS
|
||||
that supports it. All vendor extensions have the 0x80000000 bit set in
|
||||
error_type. A file vendor_flags controls the interpretation of param1
|
||||
and param2 (1 = PROCESSOR, 2 = MEMORY, 4 = PCI). See your BIOS vendor
|
||||
documentation for details (and expect changes to this API if vendors
|
||||
creativity in using this feature expands beyond our expectations).
|
||||
|
||||
Example:
|
||||
# cd /sys/kernel/debug/apei/einj
|
||||
# cat available_error_type # See which errors can be injected
|
||||
0x00000002 Processor Uncorrectable non-fatal
|
||||
0x00000008 Memory Correctable
|
||||
0x00000010 Memory Uncorrectable non-fatal
|
||||
# echo 0x12345000 > param1 # Set memory address for injection
|
||||
# echo 0xfffffffffffff000 > param2 # Mask - anywhere in this page
|
||||
# echo 0x8 > error_type # Choose correctable memory error
|
||||
# echo 1 > error_inject # Inject now
|
||||
|
||||
Injecting parameter support is a BIOS version specific extension, that
|
||||
is, it only works on some BIOS version. If you want to use it, please
|
||||
make sure your BIOS version has the proper support and specify
|
||||
"param_extension=y" in module parameter.
|
||||
|
||||
For more information about EINJ, please refer to ACPI specification
|
||||
version 4.0, section 17.5.
|
||||
version 4.0, section 17.5 and ACPI 5.0, section 18.6.
|
||||
|
@ -594,53 +594,44 @@ rmdir() will fail with it. From this behavior, pre_destroy() can be
|
||||
called multiple times against a cgroup.
|
||||
|
||||
int can_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
|
||||
struct task_struct *task)
|
||||
struct cgroup_taskset *tset)
|
||||
(cgroup_mutex held by caller)
|
||||
|
||||
Called prior to moving a task into a cgroup; if the subsystem
|
||||
returns an error, this will abort the attach operation. If a NULL
|
||||
task is passed, then a successful result indicates that *any*
|
||||
unspecified task can be moved into the cgroup. Note that this isn't
|
||||
called on a fork. If this method returns 0 (success) then this should
|
||||
remain valid while the caller holds cgroup_mutex and it is ensured that either
|
||||
Called prior to moving one or more tasks into a cgroup; if the
|
||||
subsystem returns an error, this will abort the attach operation.
|
||||
@tset contains the tasks to be attached and is guaranteed to have at
|
||||
least one task in it.
|
||||
|
||||
If there are multiple tasks in the taskset, then:
|
||||
- it's guaranteed that all are from the same thread group
|
||||
- @tset contains all tasks from the thread group whether or not
|
||||
they're switching cgroups
|
||||
- the first task is the leader
|
||||
|
||||
Each @tset entry also contains the task's old cgroup and tasks which
|
||||
aren't switching cgroup can be skipped easily using the
|
||||
cgroup_taskset_for_each() iterator. Note that this isn't called on a
|
||||
fork. If this method returns 0 (success) then this should remain valid
|
||||
while the caller holds cgroup_mutex and it is ensured that either
|
||||
attach() or cancel_attach() will be called in future.
|
||||
|
||||
int can_attach_task(struct cgroup *cgrp, struct task_struct *tsk);
|
||||
(cgroup_mutex held by caller)
|
||||
|
||||
As can_attach, but for operations that must be run once per task to be
|
||||
attached (possibly many when using cgroup_attach_proc). Called after
|
||||
can_attach.
|
||||
|
||||
void cancel_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
|
||||
struct task_struct *task, bool threadgroup)
|
||||
struct cgroup_taskset *tset)
|
||||
(cgroup_mutex held by caller)
|
||||
|
||||
Called when a task attach operation has failed after can_attach() has succeeded.
|
||||
A subsystem whose can_attach() has some side-effects should provide this
|
||||
function, so that the subsystem can implement a rollback. If not, not necessary.
|
||||
This will be called only about subsystems whose can_attach() operation have
|
||||
succeeded.
|
||||
|
||||
void pre_attach(struct cgroup *cgrp);
|
||||
(cgroup_mutex held by caller)
|
||||
|
||||
For any non-per-thread attachment work that needs to happen before
|
||||
attach_task. Needed by cpuset.
|
||||
succeeded. The parameters are identical to can_attach().
|
||||
|
||||
void attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
|
||||
struct cgroup *old_cgrp, struct task_struct *task)
|
||||
struct cgroup_taskset *tset)
|
||||
(cgroup_mutex held by caller)
|
||||
|
||||
Called after the task has been attached to the cgroup, to allow any
|
||||
post-attachment activity that requires memory allocations or blocking.
|
||||
|
||||
void attach_task(struct cgroup *cgrp, struct task_struct *tsk);
|
||||
(cgroup_mutex held by caller)
|
||||
|
||||
As attach, but for operations that must be run once per task to be attached,
|
||||
like can_attach_task. Called before attach. Currently does not support any
|
||||
subsystem that might need the old_cgrp for every thread in the group.
|
||||
The parameters are identical to can_attach().
|
||||
|
||||
void fork(struct cgroup_subsy *ss, struct task_struct *task)
|
||||
|
||||
|
@ -61,7 +61,7 @@ Brief summary of control files.
|
||||
memory.failcnt # show the number of memory usage hits limits
|
||||
memory.memsw.failcnt # show the number of memory+Swap hits limits
|
||||
memory.max_usage_in_bytes # show max memory usage recorded
|
||||
memory.memsw.usage_in_bytes # show max memory+Swap usage recorded
|
||||
memory.memsw.max_usage_in_bytes # show max memory+Swap usage recorded
|
||||
memory.soft_limit_in_bytes # set/show soft limit of memory usage
|
||||
memory.stat # show various statistics
|
||||
memory.use_hierarchy # set/show hierarchical account enabled
|
||||
@ -410,8 +410,11 @@ memory.stat file includes following statistics
|
||||
cache - # of bytes of page cache memory.
|
||||
rss - # of bytes of anonymous and swap cache memory.
|
||||
mapped_file - # of bytes of mapped file (includes tmpfs/shmem)
|
||||
pgpgin - # of pages paged in (equivalent to # of charging events).
|
||||
pgpgout - # of pages paged out (equivalent to # of uncharging events).
|
||||
pgpgin - # of charging events to the memory cgroup. The charging
|
||||
event happens each time a page is accounted as either mapped
|
||||
anon page(RSS) or cache page(Page Cache) to the cgroup.
|
||||
pgpgout - # of uncharging events to the memory cgroup. The uncharging
|
||||
event happens each time a page is unaccounted from the cgroup.
|
||||
swap - # of bytes of swap usage
|
||||
inactive_anon - # of bytes of anonymous memory and swap cache memory on
|
||||
LRU list.
|
||||
|
@ -102,9 +102,15 @@ or
|
||||
make coccicheck COCCI=<my_SP.cocci> MODE=report
|
||||
|
||||
|
||||
Using Coccinelle on (modified) files
|
||||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
Controlling Which Files are Processed by Coccinelle
|
||||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
By default the entire kernel source tree is checked.
|
||||
|
||||
To apply Coccinelle to a specific directory, M= can be used.
|
||||
For example, to check drivers/net/wireless/ one may write:
|
||||
|
||||
make coccicheck M=drivers/net/wireless/
|
||||
|
||||
To apply Coccinelle on a file basis, instead of a directory basis, the
|
||||
following command may be used:
|
||||
|
||||
|
@ -447,6 +447,9 @@ Your cooperation is appreciated.
|
||||
234 = /dev/btrfs-control Btrfs control device
|
||||
235 = /dev/autofs Autofs control device
|
||||
236 = /dev/mapper/control Device-Mapper control device
|
||||
237 = /dev/loop-control Loopback control device
|
||||
238 = /dev/vhost-net Host kernel accelerator for virtio net
|
||||
|
||||
240-254 Reserved for local use
|
||||
255 Reserved for MISC_DYNAMIC_MINOR
|
||||
|
||||
|
@ -21,6 +21,10 @@ i.MX53 Smart Mobile Reference Design Board
|
||||
Required root node properties:
|
||||
- compatible = "fsl,imx53-smd", "fsl,imx53";
|
||||
|
||||
i.MX6 Quad SABRE Automotive Board
|
||||
i.MX6 Quad Armadillo2 Board
|
||||
Required root node properties:
|
||||
- compatible = "fsl,imx6q-sabreauto", "fsl,imx6q";
|
||||
- compatible = "fsl,imx6q-arm2", "fsl,imx6q";
|
||||
|
||||
i.MX6 Quad SABRE Lite Board
|
||||
Required root node properties:
|
||||
- compatible = "fsl,imx6q-sabrelite", "fsl,imx6q";
|
||||
|
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user