kernel.git/drivers/hid/hid-alps.c, branch linux-5.3.y

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman

HID: alps: allow incoming reports when only the trackstick is opened

2018-10-26T15:27:13Z

If userspace only reads the trackstick node, and no one is listening to the touchpad nor the hidraw node then, the device is not powered on. Add open/close callbacks to allow users to disable the touchpad in Gnome while keeping the trackstick active. Link: https://bugzilla.redhat.com/show_bug.cgi?id=1559632 Link: https://gitlab.gnome.org/GNOME/mutter/issues/128 Signed-off-by: Benjamin Tissoires Signed-off-by: Jiri Kosina

HID: alps: Fix some style in 't4_read_write_register()'

2018-04-26T12:33:35Z

Better indent the code to improve readability. Signed-off-by: Christophe JAILLET Signed-off-by: Jiri Kosina

HID: alps: Check errors returned by 't4_read_write_register()'

2018-04-26T12:33:35Z

If only the first 't4_read_write_register()' call fails, the error code will be overwritten and lost. Directly report the error instead. While at it, log some errors if 't4_read_write_register()' fails, as done in the rest of the driver. Signed-off-by: Christophe JAILLET Signed-off-by: Jiri Kosina

HID: alps: Save a memory allocation in 't4_read_write_register()' when writing data

2018-04-26T12:33:35Z

if 'read_flag' is false, there is no need to allocate and free memory. We can simply avoid the memory allocation and pass NULL to kfree. Signed-off-by: Christophe JAILLET Signed-off-by: Jiri Kosina

HID: alps: Report an error if we receive invalid data in 't4_read_write_register()'

2018-04-26T12:33:35Z

If the data received is not what is expected, we should return an error. Otherwise, we return 0 or a positive value which will be interpreted as success, but '*read_val' has not been updated. Fixes: 73196ebe134d ("HID: alps: add support for Alps T4 Touchpad device") Signed-off-by: Christophe JAILLET Signed-off-by: Jiri Kosina

HID: alps: add new U1 device ID

2017-10-17T10:41:23Z

Add new U1 device Product ID This device is used on HP Elite book x360 series. [jkosina@suse.cz: update changelog] Signed-off-by: Masaki Ota Signed-off-by: Jiri Kosina

HID: alps: add support for Alps T4 Touchpad device

2017-10-17T10:40:15Z

- Define T4 device specification value for support T4 device. - Creeate "t4_contact_data" and "t4_input_report" structure for decoding and storing T4-specific data - Create "t4_calc_check_sum()" function for calculating checksum value to send to the device. T4 needs to send this value when reading or writing device address value. - Create "t4_read_write_register()" function for reading and writing device address value. - Create "t4_raw_event()" function for decodin XYZ, palm and button data. - Replace "MAX_TOUCHES" fixed variable to "max_fingers" variable. - Add T4 devuce product ID. (0x120C) T4 device is used on HP EliteBook 1000 series and Zbook Stduio [jkosina@suse.cz: rewrite changelog] Signed-off-by: Masaki Ota Signed-off-by: Jiri Kosina

HID: alps: remove variables local to u1_init() from the device struct

2017-10-17T09:35:21Z

Move dev_ctrl, dev_type, sen_line_num_x, sen_line_num_y, pitch_x, pitch_y, resolution, btn_info from u1_dev structure to "u1_init()", because these variables are only used in there. [jkosina@suse.cz: rewrite changelog] Signed-off-by: Masaki Ota Signed-off-by: Jiri Kosina

HID: alps: properly handle max_fingers and minimum on X and Y axis

2017-10-17T09:35:21Z

Create x_min, y_min and max_fingers variables for set correct XY minimum value and the number of max finger on each devices. [jkosina@suse.cz: update shortlog] Signed-off-by: Masaki Ota Signed-off-by: Jiri Kosina