Issue reproduction procedure:
1. three or more fingers put on Touchpad.
2. release fingers from Touchpad.
3. move the cursor by one finger.
4. the cursor does not move.
Cause:
We do not notify multi fingers state correctly to input subsystem. For
example, when three fingers release from Touchpad, fingers state is 3 -> 0. It
needs to notify first, second and third finger's releasing state.
Fix this by not breaking out on z axis and move x,y,z input handling
code to the correct place so that it's in fact per-finger.
[jkosina@suse.cz: reword changelog]
Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
While at it, remove redundant input_free_device(NULL) call.
[jkosina@suse.cz: ammend changelog]
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The stick device does not work after resume, add U1_SP_ABS_MODE flag can
make the device work after resume.
This has been discovered by pure guesswork, based on how the existing code uses
U1_TP_ABS_MODE flag on both initialization and resume.
I also tested the the patch on an ALPS touchpad without stick device, did not
notice any side effect on suspend/resume, so I made the U1_SP_ABS_MODE flag
mandatory.
[jkosina@suse.cz: made changelog more verbose]
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
A kfree(readbuf) call was missed if hid_hw_raw_request() fails, fix it.
Also avoid mixing direct return with goto in the error paths.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Remove an unnecessary codes.
Change input_ivent() function to appropriate function.
Add the device ID of "HID_DEVICE_ID_ALPS_U1_DUAL".
[jkosina@suse.cz: removed unnecessary bitshifts of values passed
input_report_key() as spotted by Dmitry]
Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Calculating size of the report as sizeof(pointer) always passess the length
corresponding to the pointer type, not the underlying data report.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Jiri Kosina
Masaki Ota
Wei Yongjun
Kai-Heng Feng
Axel Lin
Masaki Ota