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c01b244ad8
The usbfs interface does not provide any way for the user to learn the speed at which a device is connected. The current API includes a USBDEVFS_CONNECTINFO ioctl, but all it provides is the device's address and a one-bit value indicating whether the connection is low speed. That may have sufficed in the era of USB-1.1, but it isn't good enough today. This patch introduces a new ioctl, USBDEVFS_GET_SPEED, which returns a numeric value indicating the speed of the connection: unknown, low, full, high, wireless, super, or super-plus. Similar information (not exactly the same) is available through sysfs, but it seems reasonable to provide the actual value in usbfs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Reinhard Huck <reinhard.huck@thesycon.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
201 lines
6.8 KiB
C
201 lines
6.8 KiB
C
/*****************************************************************************/
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/*
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* usbdevice_fs.h -- USB device file system.
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*
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* Copyright (C) 2000
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* Thomas Sailer (sailer@ife.ee.ethz.ch)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* History:
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* 0.1 04.01.2000 Created
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*/
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/*****************************************************************************/
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#ifndef _UAPI_LINUX_USBDEVICE_FS_H
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#define _UAPI_LINUX_USBDEVICE_FS_H
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#include <linux/types.h>
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#include <linux/magic.h>
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/* --------------------------------------------------------------------- */
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/* usbdevfs ioctl codes */
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struct usbdevfs_ctrltransfer {
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__u8 bRequestType;
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__u8 bRequest;
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__u16 wValue;
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__u16 wIndex;
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__u16 wLength;
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__u32 timeout; /* in milliseconds */
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void __user *data;
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};
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struct usbdevfs_bulktransfer {
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unsigned int ep;
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unsigned int len;
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unsigned int timeout; /* in milliseconds */
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void __user *data;
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};
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struct usbdevfs_setinterface {
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unsigned int interface;
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unsigned int altsetting;
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};
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struct usbdevfs_disconnectsignal {
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unsigned int signr;
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void __user *context;
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};
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#define USBDEVFS_MAXDRIVERNAME 255
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struct usbdevfs_getdriver {
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unsigned int interface;
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char driver[USBDEVFS_MAXDRIVERNAME + 1];
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};
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struct usbdevfs_connectinfo {
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unsigned int devnum;
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unsigned char slow;
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};
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#define USBDEVFS_URB_SHORT_NOT_OK 0x01
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#define USBDEVFS_URB_ISO_ASAP 0x02
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#define USBDEVFS_URB_BULK_CONTINUATION 0x04
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#define USBDEVFS_URB_NO_FSBR 0x20
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#define USBDEVFS_URB_ZERO_PACKET 0x40
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#define USBDEVFS_URB_NO_INTERRUPT 0x80
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#define USBDEVFS_URB_TYPE_ISO 0
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#define USBDEVFS_URB_TYPE_INTERRUPT 1
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#define USBDEVFS_URB_TYPE_CONTROL 2
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#define USBDEVFS_URB_TYPE_BULK 3
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struct usbdevfs_iso_packet_desc {
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unsigned int length;
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unsigned int actual_length;
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unsigned int status;
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};
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struct usbdevfs_urb {
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unsigned char type;
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unsigned char endpoint;
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int status;
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unsigned int flags;
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void __user *buffer;
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int buffer_length;
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int actual_length;
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int start_frame;
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union {
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int number_of_packets; /* Only used for isoc urbs */
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unsigned int stream_id; /* Only used with bulk streams */
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};
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int error_count;
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unsigned int signr; /* signal to be sent on completion,
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or 0 if none should be sent. */
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void __user *usercontext;
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struct usbdevfs_iso_packet_desc iso_frame_desc[0];
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};
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/* ioctls for talking directly to drivers */
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struct usbdevfs_ioctl {
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int ifno; /* interface 0..N ; negative numbers reserved */
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int ioctl_code; /* MUST encode size + direction of data so the
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* macros in <asm/ioctl.h> give correct values */
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void __user *data; /* param buffer (in, or out) */
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};
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/* You can do most things with hubs just through control messages,
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* except find out what device connects to what port. */
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struct usbdevfs_hub_portinfo {
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char nports; /* number of downstream ports in this hub */
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char port [127]; /* e.g. port 3 connects to device 27 */
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};
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/* System and bus capability flags */
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#define USBDEVFS_CAP_ZERO_PACKET 0x01
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#define USBDEVFS_CAP_BULK_CONTINUATION 0x02
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#define USBDEVFS_CAP_NO_PACKET_SIZE_LIM 0x04
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#define USBDEVFS_CAP_BULK_SCATTER_GATHER 0x08
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#define USBDEVFS_CAP_REAP_AFTER_DISCONNECT 0x10
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#define USBDEVFS_CAP_MMAP 0x20
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#define USBDEVFS_CAP_DROP_PRIVILEGES 0x40
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/* USBDEVFS_DISCONNECT_CLAIM flags & struct */
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/* disconnect-and-claim if the driver matches the driver field */
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#define USBDEVFS_DISCONNECT_CLAIM_IF_DRIVER 0x01
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/* disconnect-and-claim except when the driver matches the driver field */
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#define USBDEVFS_DISCONNECT_CLAIM_EXCEPT_DRIVER 0x02
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struct usbdevfs_disconnect_claim {
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unsigned int interface;
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unsigned int flags;
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char driver[USBDEVFS_MAXDRIVERNAME + 1];
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};
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struct usbdevfs_streams {
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unsigned int num_streams; /* Not used by USBDEVFS_FREE_STREAMS */
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unsigned int num_eps;
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unsigned char eps[0];
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};
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/*
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* USB_SPEED_* values returned by USBDEVFS_GET_SPEED are defined in
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* linux/usb/ch9.h
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*/
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#define USBDEVFS_CONTROL _IOWR('U', 0, struct usbdevfs_ctrltransfer)
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#define USBDEVFS_CONTROL32 _IOWR('U', 0, struct usbdevfs_ctrltransfer32)
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#define USBDEVFS_BULK _IOWR('U', 2, struct usbdevfs_bulktransfer)
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#define USBDEVFS_BULK32 _IOWR('U', 2, struct usbdevfs_bulktransfer32)
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#define USBDEVFS_RESETEP _IOR('U', 3, unsigned int)
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#define USBDEVFS_SETINTERFACE _IOR('U', 4, struct usbdevfs_setinterface)
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#define USBDEVFS_SETCONFIGURATION _IOR('U', 5, unsigned int)
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#define USBDEVFS_GETDRIVER _IOW('U', 8, struct usbdevfs_getdriver)
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#define USBDEVFS_SUBMITURB _IOR('U', 10, struct usbdevfs_urb)
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#define USBDEVFS_SUBMITURB32 _IOR('U', 10, struct usbdevfs_urb32)
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#define USBDEVFS_DISCARDURB _IO('U', 11)
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#define USBDEVFS_REAPURB _IOW('U', 12, void *)
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#define USBDEVFS_REAPURB32 _IOW('U', 12, __u32)
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#define USBDEVFS_REAPURBNDELAY _IOW('U', 13, void *)
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#define USBDEVFS_REAPURBNDELAY32 _IOW('U', 13, __u32)
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#define USBDEVFS_DISCSIGNAL _IOR('U', 14, struct usbdevfs_disconnectsignal)
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#define USBDEVFS_DISCSIGNAL32 _IOR('U', 14, struct usbdevfs_disconnectsignal32)
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#define USBDEVFS_CLAIMINTERFACE _IOR('U', 15, unsigned int)
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#define USBDEVFS_RELEASEINTERFACE _IOR('U', 16, unsigned int)
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#define USBDEVFS_CONNECTINFO _IOW('U', 17, struct usbdevfs_connectinfo)
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#define USBDEVFS_IOCTL _IOWR('U', 18, struct usbdevfs_ioctl)
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#define USBDEVFS_IOCTL32 _IOWR('U', 18, struct usbdevfs_ioctl32)
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#define USBDEVFS_HUB_PORTINFO _IOR('U', 19, struct usbdevfs_hub_portinfo)
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#define USBDEVFS_RESET _IO('U', 20)
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#define USBDEVFS_CLEAR_HALT _IOR('U', 21, unsigned int)
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#define USBDEVFS_DISCONNECT _IO('U', 22)
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#define USBDEVFS_CONNECT _IO('U', 23)
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#define USBDEVFS_CLAIM_PORT _IOR('U', 24, unsigned int)
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#define USBDEVFS_RELEASE_PORT _IOR('U', 25, unsigned int)
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#define USBDEVFS_GET_CAPABILITIES _IOR('U', 26, __u32)
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#define USBDEVFS_DISCONNECT_CLAIM _IOR('U', 27, struct usbdevfs_disconnect_claim)
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#define USBDEVFS_ALLOC_STREAMS _IOR('U', 28, struct usbdevfs_streams)
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#define USBDEVFS_FREE_STREAMS _IOR('U', 29, struct usbdevfs_streams)
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#define USBDEVFS_DROP_PRIVILEGES _IOW('U', 30, __u32)
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#define USBDEVFS_GET_SPEED _IO('U', 31)
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#endif /* _UAPI_LINUX_USBDEVICE_FS_H */
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