The ASUS laptops start to support the airplane mode radio management to replace the original machanism of airplane mode toggle hotkey. On the ASUS P5440FF, it presents as a HID device connecting via I2C, name i2c-AMPD0001. When pressing hotkey, the Embedded Controller send hid report up via I2C and switch the airplane mode indicator LED based on the status.
However, it's not working because it fails to be identified as a hidinput device. It fails in hidinput_connect() due to the macro IS_INPUT_APPLICATION doesn't identify HID_GD_WIRELESS_RADIO_CTLS as a legit application code. It's easy to add the HID I2C vendor and product id to the quirk list and apply HID_QUIRK_HIDINPUT_FORCE to make it work. But it can be more generic to support such kind of application on PC. Signed-off-by: Chris Chiu <c...@endlessm.com> --- include/linux/hid.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/hid.h b/include/linux/hid.h index d44a78362942..f4805f605fed 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -836,7 +836,7 @@ static inline bool hid_is_using_ll_driver(struct hid_device *hdev, /* Applications from HID Usage Tables 4/8/99 Version 1.1 */ /* We ignore a few input applications that are not widely used */ -#define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001) || ((a >= 0x000d0002) && (a <= 0x000d0006))) +#define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || || (a == 0x0001000c) || (a == 0x000c0001) || ((a >= 0x000d0002) && (a <= 0x000d0006))) /* HID core API */ -- 2.11.0
