kernel/linux.git/drivers/input/touchscreen/sur40.c, branch v4.14.85

Input: sur40 - skip all blobs that are not touches

2017-07-12T21:20:28+00:00

The SUR40 labels all reported blobs as touch, token, or generic blob. Previously, all blobs were reported as touch regardless of type, causing lots of false positives. Present patch fixes this. Signed-off-by: Martin Kaltenbrunner Signed-off-by: Florian Echtler Signed-off-by: Dmitry Torokhov

Input: sur40 - silence unnecessary noisy debug output

2017-07-12T21:20:15+00:00

This information is unneccessary, even as debug output. Leave commented out as documentation of the packet ID quirk. Signed-off-by: Martin Kaltenbrunner Signed-off-by: Florian Echtler Signed-off-by: Dmitry Torokhov

Input: sur40 - add additional reverse-engineered information

2017-07-12T21:19:58+00:00

Due to recent reverse engineering efforts, a lot more information is now available about the internals of the SUR40. We document this in the kernel driver for future use. Signed-off-by: Martin Kaltenbrunner Signed-off-by: Florian Echtler Signed-off-by: Dmitry Torokhov

Input: sur40 - fix bad endianness handling in sur40_poll

2017-04-05T15:52:36+00:00

sparse says: sur40.c:372:40: warning: restricted __le32 degrades to integer the header's data is __le32 so we need to convert it before comparing. Signed-off-by: Martin Kepplinger Signed-off-by: Dmitry Torokhov

Input: sur40 - validate number of endpoints before using them

2017-03-16T20:56:54+00:00

Make sure to check the number of endpoints to avoid dereferencing a NULL-pointer or accessing memory that lie beyond the end of the endpoint array should a malicious device lack the expected endpoints. Fixes: bdb5c57f209c ("Input: add sur40 driver for Samsung SUR40... ") Signed-off-by: Johan Hovold Cc: stable@vger.kernel.org # 3.13 Signed-off-by: Dmitry Torokhov

[media] sur40: properly report a single frame rate of 60 FPS

2016-08-24T13:07:06+00:00

The device hardware is always running at 60 FPS, so report this both via PARM_IOCTL and ENUM_FRAMEINTERVALS. [hans.verkuil@cisco.com: fix suspect indent checkpatch warning] [mchehab@s-opensource.com: fix a trivial merge conflict] Signed-off-by: Martin Kaltenbrunner Signed-off-by: Florian Echtler Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] Input: sur40 - use new V4L2 touch input type

2016-08-23T19:34:29+00:00

Support both V4L2_TCH_FMT_TU08 and V4L2_PIX_FMT_GREY for backwards compatibility. Signed-off-by: Nick Dyer Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Acked-by: Dmitry Torokhov

[media] sur40: drop unnecessary format description

2016-07-08T19:16:58+00:00

Don't fill in the format description. This is now done in the V4L2 core to ensure consistent descriptions. Signed-off-by: Hans Verkuil Acked-by: Nick Dyer Signed-off-by: Mauro Carvalho Chehab

[media] sur40: fix occasional oopses on device close

2016-07-08T19:16:57+00:00

Closing the V4L2 device sometimes triggers a kernel oops. Present patch fixes this. Signed-off-by: Martin Kaltenbrunner Signed-off-by: Florian Echtler Signed-off-by: Hans Verkuil Cc: # for v4.2 and up Signed-off-by: Mauro Carvalho Chehab

[media] sur40: lower poll interval to fix occasional FPS drops to ~56 FPS

2016-07-08T19:16:56+00:00

The framerate sometimes drops below 60 Hz if the poll interval is too high. Lowering it to the minimum of 1 ms fixes this. Signed-off-by: Martin Kaltenbrunner Signed-off-by: Florian Echtler Signed-off-by: Hans Verkuil Cc: # for v4.2 and up Signed-off-by: Mauro Carvalho Chehab