AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-25 02:30:52 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

USB: cdc-acm - blacklist IMS PCU device

Browse Source 
The IMS PCU (Passenger Control Unit) device used custom protocol over serial
line, so it is presenting itself as CDC ACM device.

Now that we have proper in-kernel driver for it we need to black-list the
device in cdc-acm driver.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2013-02-02 11:02:14 -08:00
parent 628329d524
commit 1614265526
2 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/usb/class/cdc-acm.c
View File

@ -949,6 +949,10 @@ static int acm_probe(struct usb_interface *intf,
/* normal quirks */ /* normal quirks */
quirks = (unsigned long)id->driver_info; quirks = (unsigned long)id->driver_info;
if (quirks == IGNORE_DEVICE)
return -ENODEV;
num_rx_buf = (quirks == SINGLE_RX_URB) ? 1 : ACM_NR; num_rx_buf = (quirks == SINGLE_RX_URB) ? 1 : ACM_NR;
/* handle quirks deadly to normal probing*/ /* handle quirks deadly to normal probing*/
@ -1650,6 +1654,15 @@ static const struct usb_device_id acm_ids[] = {
.driver_info = NO_DATA_INTERFACE, .driver_info = NO_DATA_INTERFACE,
}, },
#if IS_ENABLED(CONFIG_INPUT_IMS_PCU)
{ USB_DEVICE(0x04d8, 0x0082), /* Application mode */
.driver_info = IGNORE_DEVICE,
},
{ USB_DEVICE(0x04d8, 0x0083), /* Bootloader mode */
.driver_info = IGNORE_DEVICE,
},
#endif
/* control interfaces without any protocol set */ /* control interfaces without any protocol set */
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM, { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
USB_CDC_PROTO_NONE) }, USB_CDC_PROTO_NONE) },

1
drivers/usb/class/cdc-acm.h
View File

@ -128,3 +128,4 @@ struct acm {
#define NO_CAP_LINE 4 #define NO_CAP_LINE 4
#define NOT_A_MODEM 8 #define NOT_A_MODEM 8
#define NO_DATA_INTERFACE 16 #define NO_DATA_INTERFACE 16
#define IGNORE_DEVICE 32