Other stuff, and Power Management

Dan Williams dcbw at redhat.com
Sat Dec 9 23:11:28 EST 2006


On Sun, 2006-12-10 at 00:47 +0000, Richard Hughes wrote:
> On Sat, 2006-12-09 at 10:18 -1000, Mitch Bradley wrote:
> > The power button does generate keycodes...
> 
> Ahh I see, keycode 124.
> 
> >From what I understand keycodes are not that useful, keysyms are
> probably what userspace wants.
> 
> Something like XF86XK_PowerOff would be great as this is the same key as
> some USB keyboards generate, and also what the ACPI layer will also be
> sending in the future for power button events.
> 
> Now, I'm not pretending to actually understand in detail all this input
> stuff, so I'm not exactly sure where the keycode 124 -> XF86XK_PowerOff
> mapping would be done. Any ideas?

You probably really want to map this to a linux kernel keycode first,
see the small tool that runs on startup that does some keyboard poking
with evdev ioctls.  I forget the exact name of the tool, but its in the
'olpc-utils' RPM or something like that.

Dan

> Richard.
> 
> 
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