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path: root/drivers/input/misc/ims-pcu.c
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* Input: ims-pcu - sanity check against missing interfacesOliver Neukum2016-03-171-0/+4
| | | | | | | | A malicious device missing interface can make the driver oops. Add sanity checking. Signed-off-by: Oliver Neukum <ONeukum@suse.com> CC: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Merge branch 'next' into for-linusDmitry Torokhov2014-12-151-2/+2
|\ | | | | | | Prepare input updates for 3.19.
| * Input: initialize device counter variables with -1Aniroop Mathur2014-12-031-2/+2
| | | | | | | | | | | | | | | | | | Let's initialize atomic_t variables keeping track of number of various devices created so far with -1 in order to avoid extra subtraction operation. Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* | Input: ims-pcu - fix dead code in ims_pcu_ofn_reg_addr_store()Dmitry Torokhov2014-10-281-1/+1
|/ | | | | | | Coverity pointed out that at return point error is always 0 so the conditional is not needed. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: ims-pcu - fix uninitialized use of 'error' in ims_pcu_buffers_alloc()Christian Engelmayer2014-05-181-0/+1
| | | | | | | | | In case allocation via usb_alloc_coherent() fails in ims_pcu_buffers_alloc(), the function jumps to the exit path without initializing local variable 'error' that is used as return value. Detected by Coverity - CID 1016531. Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: ims-pcu - add commands supported by the new version of the FWAndrey Smirnov2014-02-121-6/+248
| | | | | | | | | | | | | | | New version of the PCU firmware supports two new commands: - IMS_PCU_CMD_OFN_SET_CONFIG which allows to write data to the registers of one finger navigation(OFN) chip present on the device - IMS_PCU_CMD_OFN_GET_CONFIG which allows to read data form the registers of said chip. This commit adds two helper functions to use those commands and sysfs attributes to use them. It also exposes some OFN configuration parameters via sysfs. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: ims-pcu - fix error unwinding path in application modeDmitry Torokhov2014-02-121-2/+2
| | | | | | | We first create backlight and then input devices so we should destroy them in opposite order when handling errors. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: ims-pcu - fix a memory leak on errorDmitry Torokhov2013-04-011-2/+3
| | | | | Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: add IMS Passenger Control Unit driverDmitry Torokhov2013-03-121-0/+1900
The PCU is a device installed in the armrest of a plane seat and is connected to IMS Rave Entertainment System. It has a set of control buttons (Volume Up/Down, Attendant, Lights, etc) on one side and gamepad-like controls on the other side. Originally the device was handled from userspace and because of that it presents itself on USB bus as a CDC-ACM modem device that however can not make calls. However the custom handling is not as convenient as using standard input subsystem facilities. If it was pure input device it would be possible to continue using userspace solution (moving it over to uinput), but the device also has backlighted keys which can not be supported via uinput. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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