[PATCH v2 2/2] dell-wmi-base: Handle META key Lock/Unlock events

From: Kurt Borja
Date: Thu Oct 31 2024 - 11:45:46 EST


Some Alienware devices have a key that locks/unlocks the Meta key. This
key triggers a WMI event that should be ignored by the kernel, as it's
handled by internally the firmware.

There is no known way of changing this default behavior. The firmware
would lock/unlock the Meta key, regardless of how the event is handled.

Tested on an Alienware x15 R1.

Signed-off-by: Kurt Borja <kuurtb@xxxxxxxxx>
---
v2:
- Fixed entry style
- Commit message clarifies firmware behavior
- Commit message now has "Tested on"
---
drivers/platform/x86/dell/dell-wmi-base.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/platform/x86/dell/dell-wmi-base.c b/drivers/platform/x86/dell/dell-wmi-base.c
index 502783a7a..ce421e51b 100644
--- a/drivers/platform/x86/dell/dell-wmi-base.c
+++ b/drivers/platform/x86/dell/dell-wmi-base.c
@@ -80,6 +80,12 @@ static const struct dmi_system_id dell_wmi_smbios_list[] __initconst = {
static const struct key_entry dell_wmi_keymap_type_0000[] = {
{ KE_IGNORE, 0x003a, { KEY_CAPSLOCK } },

+ /* Meta key lock */
+ { KE_IGNORE, 0xe000, { KEY_RIGHTMETA } },
+
+ /* Meta key unlock */
+ { KE_IGNORE, 0xe001, { KEY_RIGHTMETA } },
+
/* Key code is followed by brightness level */
{ KE_KEY, 0xe005, { KEY_BRIGHTNESSDOWN } },
{ KE_KEY, 0xe006, { KEY_BRIGHTNESSUP } },
--
2.47.0