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| author | Daniel Drake <drake@endlessm.com> | 2018-10-09 14:40:56 +0800 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2018-10-31 16:11:40 +0200 |
| commit | 3b692c55e58d06ba9b17c66784cab5a95ba5be9b (patch) | |
| tree | 28a46b5dde2c93e22e0abf34070f5c0e1a38a62f /kernel/params.c | |
| parent | ffb6ce7086ee2d68d8d6d987882f1c5e923fee7e (diff) | |
| download | linux-3b692c55e58d06ba9b17c66784cab5a95ba5be9b.tar.bz2 | |
HID: asus: only support backlight when it's not driven by WMI
The Asus GL502VSK has the same 0B05:1837 keyboard as we've seen in
several Republic of Gamers laptops.
However, in this model, the keybard backlight control exposed by hid-asus
has no effect on the keyboard backlight. Instead, the keyboard
backlight is correctly driven by asus-wmi.
With two keyboard backlight devices available (and only the acer-wmi
one working), GNOME is picking the wrong one to drive in the UI.
Avoid this problem by not creating the backlight interface when we
detect a WMI-driven keyboard backlight.
We have also tested Asus GL702VMK which does have the hid-asus
backlight present, and it still works fine with this patch (WMI method
call returns UNSUPPORTED_METHOD).
A direct "depends on ASUS_WMI" is intentionally avoided so that HID_ASUS
users who have ASUS_WMI=n will not quietly lose their HID_ASUS driver on
a kernel upgrade.
Signed-off-by: Daniel Drake <drake@endlessm.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'kernel/params.c')
0 files changed, 0 insertions, 0 deletions