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SubjectRe: [PATCH] platform/x86: acer-wmi: add automatic keyboard background light toggle key as KEY_LIGHTS_TOGGLE
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Hi,

Quick self intro: I have take over drivers/platform/x86
maintainership from Andy; and I'm working my way through
the backlog of old patches in patchwork:
https://patchwork.kernel.org/project/platform-driver-x86/list/

On 8/4/20 2:14 AM, Timo Witte wrote:
> Got a dmesg message on my AMD Renoir based Acer laptop:
> "acer_wmi: Unknown key number - 0x84" when toggling keyboard
> background light
>
> Signed-off-by: Timo Witte <timo.witte@gmail.com>
> Reviewed-by: "Lee, Chun-Yi" <jlee@suse.com>

Thank you for your patch, I've applied this patch to my review-hans
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

I've made one small change I've replaced the (ignored)
KEY_LIGHTS_TOGGLE key-code with KEY_KBDILLUMTOGGLE as that is
the correct code to use for toggling the kbd backlight on/off.
As the comment in input-event-codes.h says KEY_LIGHTS_TOGGLE
is for "/* Reading light on or off */".

Note this will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans

> ---
> drivers/platform/x86/acer-wmi.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
> index 60c18f21588d..87797f785d6a 100644
> --- a/drivers/platform/x86/acer-wmi.c
> +++ b/drivers/platform/x86/acer-wmi.c
> @@ -111,6 +111,7 @@ static const struct key_entry acer_wmi_keymap[] __initconst = {
> {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */
> {KE_IGNORE, 0x81, {KEY_SLEEP} },
> {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */
> + {KE_IGNORE, 0x84, {KEY_LIGHTS_TOGGLE} }, /* Automatic Keyboard background light toggle */
> {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} },
> {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },
> {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
>

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