[PATCH 2/3] HID: asus: add keycodes for 0x6a, 0x4b, and 0xc7

From: Luke D. Jones
Date: Tue May 02 2023 - 23:47:50 EST


These two keys are found on some models with dual display.
- 0x6a is intended for controlling the secondary screen brightness.
- 0x4b is intended for toggling the arrow keys between arrows and
page up / page down.
This key is found on a slightly modified keyboard layout.
- 0xc7 is intended to cycle through keybvoard brightnesses (upwards) but
there is not suitable existing code for this behaviour. Using
`KEY_KBDILLUMTOGGLE` is different behaviour to Windows but at least
is picked up by many desktops already.

Signed-off-by: Luke D. Jones <luke@xxxxxxxxxx>
---
drivers/hid/hid-asus.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index ac93f987d822..918d0d05ca88 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -883,6 +883,7 @@ static int asus_input_mapping(struct hid_device *hdev,
case 0xb5: asus_map_key_clear(KEY_CALC); break;
case 0xc4: asus_map_key_clear(KEY_KBDILLUMUP); break;
case 0xc5: asus_map_key_clear(KEY_KBDILLUMDOWN); break;
+ case 0xc7: asus_map_key_clear(KEY_KBDILLUMTOGGLE); break;

/* ASUS touchpad toggle */
case 0x6b: asus_map_key_clear(KEY_F21); break;
@@ -911,6 +912,12 @@ static int asus_input_mapping(struct hid_device *hdev,
/* Fn+Right Aura mode next on N-Key keyboard */
case 0xb3: asus_map_key_clear(KEY_PROG3); break;

+ /* Screenpad toggle on N-Key keyboard */
+ case 0x6a: asus_map_key_clear(KEY_F13); break;
+
+ /* Arrows/Page-up/Down toggle on N-Key keyboard */
+ case 0x4b: asus_map_key_clear(KEY_F14); break;
+
default:
/* ASUS lazily declares 256 usages, ignore the rest,
* as some make the keyboard appear as a pointer device. */
--
2.40.0