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2c97d3e55b
Add support for the WMI methods used to turn off and adjust the brightness of the secondary "screenpad" device found on some high-end ASUS laptops like the GX650P series and others. There are some small quirks with this device when considering only the raw WMI methods: 1. The Off method can only switch the device off 2. Changing the brightness turns the device back on 3. To turn the device back on the brightness must be > 1 4. When the device is off the brightness can't be changed (so it is stored by the driver if device is off). 5. Booting with a value of 0 brightness (retained by bios) means the bios will set a value of >0 <15 6. When the device is off it is "unplugged" asus_wmi sets the minimum brightness as 20 in general use, and 60 for booting with values <= min. The ACPI methods are used in a new backlight device named asus_screenpad. Signed-off-by: Luke D. Jones <luke@ljones.dev> Link: https://lore.kernel.org/r/20230830032237.42987-2-luke@ljones.dev Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> |
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| .. | ||
| apple.h | ||
| asus-wmi.h | ||
| clk-lpss.h | ||
| clk-pmc-atom.h | ||
| nvidia-wmi-ec-backlight.h | ||
| p2sb.h | ||
| pmc_atom.h | ||
| pwm-lpss.h | ||
| simatic-ipc-base.h | ||
| simatic-ipc.h | ||
| soc.h | ||
| spi-intel.h | ||