Am Freitag 21 September 2007 schrieb Jiri Kosina:
> On Fri, 21 Sep 2007, Oliver Neukum wrote:
>
> > I got the strange case of a keyboard going into autosuspend while a key
> > was being pressed. The key release never arrived and I had to unplug the
> > keyboard to get the key unstuck. Is there a clean way to learn from
> > hid-core.c if a keyboard has keys pressed?
>
> Hi Oliver,
>
> HID doesn't keep any permanent state by itself. If you want to know
> whether a given key is currently pressed or not, you'd have to inspect the
> bitfields inside input_dev*, I am afraid.
I see no way to do this without a race condition. The field isn't locked
as far as I can tell.
Secondly, what is to happen in case of a system wide suspend? Will
the system wake up thinking that the key is still pressed?
Regards
Oliver
