On Wed, Oct 30, 2024 at 09:20:29PM +0100, Pali Rohár wrote: > On Wednesday 30 October 2024 17:11:40 Kurt Borja wrote: > > On Wed, Oct 30, 2024 at 07:34:36PM +0100, Pali Rohár wrote: > > > On Wednesday 30 October 2024 15:15:33 Kurt Borja wrote: > > > > Some Alienware devices have a key that locks/unlocks the Win-key. This > > > > > > Please specify (in comment / commit message) which devices. It would > > > help other developers in future to track for which device is this event > > > needed. > > > > I will! > > > > > > > > > key triggers a WMI event that should be ignored, as it's handled > > > > internally by the firmware. > > > > > > Can be this handling in FW ignored? So OS can use this key for any other > > > functionality? > > > > Probably not. FW locks the Win-key regardless of how the event is > > handled. > > > > > > > > Anyway, what is that Win-key and its lock? > > > > Win-key is the LEFTMETA key and the lock key is the RIGHTMETA key. > > Ok, thanks for info. > > So if the firmware handles and process RIGHTMETA key, it means that the > RIGHTMETA key is not usable for generic purposes on this machine? Yes, it is not. Unless, of course we find a way to change FW default behavior. > > > > > > > > Signed-off-by: Kurt Borja <kuurtb@xxxxxxxxx> > > > > --- > > > > 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..37fc0371a 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 } }, > > > > > > > > + /* Win-key Lock */ > > > > + { KE_IGNORE, 0xe000, {KEY_RESERVED} }, > > > > > > nit: code style: spaces around KEY_RESERVED. > > > > I will fix it. > > > > > > > > Is not there some better constant for this KEY_*? > > > > We could assign it KEY_RIGHTMETA. > > Just to note that if the key is marked with KE_IGNORE, its value is not > used. But for documentation purposes it is a good idea to have written > there something other than KEY_RESERVED -- if it is possible. > > For example it can be useful if somebody in future figure out how to > turn off processing of this key in firmware... Thanks I will replace it with KEY_RIGHTMETA. Kurt > > > > > > > > + > > > > + /* Win-key Unlock */ > > > > + { KE_IGNORE, 0xe001, {KEY_RESERVED} }, > > > > + > > > > /* Key code is followed by brightness level */ > > > > { KE_KEY, 0xe005, { KEY_BRIGHTNESSDOWN } }, > > > > { KE_KEY, 0xe006, { KEY_BRIGHTNESSUP } }, > > > > -- > > > > 2.47.0 > > > >