linux-toradex.git/drivers/hid, branch tegra-10.11.4

HID: Fix for problems with eGalax/DWAV multi-touch-screen

2010-12-09T21:32:42+00:00

commit f51661105c3c8a0afcd69f995a4f4a10e53da153 upstream.

This patch fixes three problems with the eGalax/DWAV multi-touch
screen found in the Eee PC T101MT:

1) While there is a dedicated multitouch driver for the screen
   (hid-egalax.c), the MULTI_INPUT quirk is also applied, preventing
   the hid-egalax driver from working. This patch removes the quirk
   so the hid-egalax driver can handle the device correctly.
2) The x and y coordinates sent by the screen in multi-touch mode are
   shifted by three bits from the events sent in single-touch mode, thus
   the coordinates are out of range, leading to the pointer being stuck
   in the bottom-right corner if no additional calibration is applied
   (e.g. in the X evdev driver). This patch shifts the coordinates back.
   This does not decrease accuracy as the last three bits of the "wrong"
   coordinates are always 0.
3) Only multi-touch pressure events are sent, single touch emulation is
   missing pressure information. This patch adds single-touch
   ABS_PRESSURE events.

Signed-off-by: Philipp Merkel 
Acked-by: Stéphane Chatty 
Signed-off-by: Jiri Kosina 
Signed-off-by: Greg Kroah-Hartman

HID: Add Cando touch screen 15.6-inch product id

2010-10-13T08:47:32+00:00

This add the product id of the touch screen found on ACER Aspire 5738PZ.  Works
with hid-cando driver.

Signed-off-by: Francois Jaouen
Signed-off-by: Jiri Kosina

HID: Add MULTI_INPUT quirk for turbox/mosart touchscreen

2010-10-12T09:39:57+00:00

This device generates ABS_Z and ABS_RX events, while it should be
generating ABS_X and ABS_Y instead. Using the MULTI_INPUT quirk solves
this issue.

Reference: https://bugs.launchpad.net/ubuntu/+bug/620609/

Signed-off-by: Pierre BAILLY 
Signed-off-by: Anisse Astier 
Signed-off-by: Jiri Kosina

HID: hidraw, fix a NULL pointer dereference in hidraw_write

2010-10-06T09:30:34+00:00

BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
IP: [] hidraw_write+0x3b/0x116 [hid]
[...]

This is reproducible by disconnecting the device while userspace writes
to dev node in a loop and doesn't check return values in order to exit
the loop.

Signed-off-by: Antonio Ospite 
Cc: stable@kernel.org
Signed-off-by: Jiri Kosina

HID: hidraw, fix a NULL pointer dereference in hidraw_ioctl

2010-10-06T09:30:31+00:00

BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
IP: [] hidraw_ioctl+0xfc/0x32c [hid]
[...]

This is reproducible by disconnecting the device while userspace does
ioctl in a loop and doesn't check return values in order to exit the
loop.

Signed-off-by: Antonio Ospite 
Cc: stable@kernel.org
Signed-off-by: Jiri Kosina

HID: fix hiddev's use of usb_find_interface

2010-09-14T08:58:42+00:00

My macbook infrared remote control was broken by commit
bd25f4dd6972755579d0ea50d1a5ace2e9b00d1a ("HID: hiddev: use
usb_find_interface, get rid of BKL").

This device appears in dmesg as:
apple 0003:05AC:8242.0001: hiddev0,hidraw0: USB HID v1.11 Device
[Apple Computer, Inc. IR Receiver] on usb-0000:00:1d.2-1/input0

It stopped working as lircd was getting ENODEV when opening /dev/usb/hiddev0.

AFAICS hiddev_driver is a dummy driver so usb_find_interface(&hiddev_driver)
does not find anything.

The device is associated with the usbhid driver, so let's do
usb_find_interface(&hid_driver) instead.

$ ls -l /sys/devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/usb/hiddev0/device/driver
lrwxrwxrwx 1 root root 0 2010-09-12 16:28 /sys/devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/usb/hiddev0/device/driver -> ../../../../../../bus/usb/drivers/usbhid

Signed-off-by: Guillaume Chazarain 
Signed-off-by: Jiri Kosina

HID: fixup blacklist entry for Asus T91MT

2010-09-08T12:31:47+00:00

The device is handled by hid-mosart driver, and therefore should
be present in hid_blacklist[], not hid_ignore_list[].

Cc: Stephane Chatty 
Signed-off-by: Jiri Kosina

HID: add device ID for new Asus Multitouch Controller

2010-09-08T12:30:35+00:00

The following patch instructs usbhid/hid-mosart to handle a new multitouch
controller, built-in by some Asus EeePC T101MT models.

Signed-off-by: Roland Baum 
Tested-by: Roland Baum 
Acked-by: Stéphane Chatty 
CC: Stéphane Chatty 
Signed-off-by: Jiri Kosina

HID: add no-get quirk for eGalax touch controller

2010-09-03T10:12:55+00:00

Add no-get quirk for eGalax touch controller to avoid timeout at probe.

Signed-off-by: Johan Hovold 
Signed-off-by: Jiri Kosina

HID: Add quirk for eGalax touch controler.

2010-08-30T13:50:04+00:00

This patch adds a quirk for the eGalax touch controller which reports
two pairs of axes.

Signed-off-by: Thierry Reding 
Signed-off-by: Jiri Kosina