To get somewhat back on track: volume and brightness (and similar - lid
close etc) events clearly are keypresses.
However, I would also argue that a keypress that is acted on by the
firmware automatically is *different* from a keypress that hasn't been
acted on: one is a "key was pressed *and* hardware did something
automatically", and the other is just a "key was pressed" event.
IOW, I think the thinkpad issue (and others like it) should be fixed by
splitting up the KEY_VOLUMEUP "key" into separate KEY_VOLUMEUP and
KEY_VOLUMEUP_NOTIFY key events, so that downstream user mode (and the
kernel itself, for that matter) can know whether it's a informational
message or whether it should be acted upon.
Because clearly we seem to have both cases, and while I think we should
try to move towards a "user mode does all actions" model where screen
brightness is under the control of X, that isn't necessarily the case now,
nor perhaps even reachable on all hw platforms.
Hmm?
Linus
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