[PATCH v2] platform/x86: dell-wmi: Ignore new rfkill and fn-lock events

From: Kai-Heng Feng
Date: Fri Apr 20 2018 - 03:27:06 EST


There are two new events generated by dell-wmi, rfkill and fn-lock, from
Dell Systems.

When Fn-lock hotkey gets pressed to switch to function mode:
[85951.591542] dell_wmi: Unknown key with type 0x0010 and code 0xe035
pressed
[85951.591546] dell_wmi: Unknown key with type 0x0010 and code 0x0000
pressed

When Fn-lock hotkey gets pressed to switch to multimedia mode:
[85956.667686] dell_wmi: Unknown key with type 0x0010 and code 0xe035
pressed
[85956.667690] dell_wmi: Unknown key with type 0x0010 and code 0x0001
pressed

When radio hotkey gets pressed:
[85974.430220] dell_wmi: Unknown key with type 0x0010 and code 0xe008
pressed

These events are for notification purpose, so we can ignore them.

This patch is tested on XPS 9370.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
---
v2: Reorder alphabetically.
More detailed changelog.

drivers/platform/x86/dell-wmi.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index 8d102195a392..ba8e6725d7ac 100644
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -261,6 +261,12 @@ static const u16 bios_to_linux_keycode[256] = {
* override them.
*/
static const struct key_entry dell_wmi_keymap_type_0010[] = {
+ /* Fn-lock switched to function keys */
+ { KE_IGNORE, 0x0, { KEY_RESERVED } },
+
+ /* Fn-lock switched to multimedia keys */
+ { KE_IGNORE, 0x1, { KEY_RESERVED } },
+
/* Mic mute */
{ KE_KEY, 0x150, { KEY_MICMUTE } },

@@ -296,6 +302,14 @@ static const struct key_entry dell_wmi_keymap_type_0010[] = {
{ KE_KEY, 0x851, { KEY_PROG2 } },
{ KE_KEY, 0x852, { KEY_PROG3 } },

+ /*
+ * Radio disable (notify only -- there is no model for which the
+ * WMI event is supposed to trigger an action).
+ */
+ { KE_IGNORE, 0xe008, { KEY_RFKILL } },
+
+ /* Fn-lock */
+ { KE_IGNORE, 0xe035, { KEY_RESERVED } },
};

/*
--
2.17.0