* question on LEDs on keyboards
@ 2008-10-14 13:20 Oliver Neukum
2008-10-14 13:32 ` Jiri Kosina
0 siblings, 1 reply; 4+ messages in thread
From: Oliver Neukum @ 2008-10-14 13:20 UTC (permalink / raw)
To: Jiri Kosina; +Cc: linux-input
Hi,
I found an error in the hid autosuspend patches. Keyboards can have
more than one LED. Is there a way to query the HID layer about active
LEDs?
Regards
Oliver
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: question on LEDs on keyboards
2008-10-14 13:20 question on LEDs on keyboards Oliver Neukum
@ 2008-10-14 13:32 ` Jiri Kosina
2008-10-14 18:13 ` Oliver Neukum
0 siblings, 1 reply; 4+ messages in thread
From: Jiri Kosina @ 2008-10-14 13:32 UTC (permalink / raw)
To: Oliver Neukum; +Cc: linux-input
On Tue, 14 Oct 2008, Oliver Neukum wrote:
> I found an error in the hid autosuspend patches. Keyboards can have more
> than one LED. Is there a way to query the HID layer about active LEDs?
Hi Oliver,
you can either get the information from the underlying input device, or
you can use hidinput_find_field() to find the fields of EV_LED type, and
obtain the value from the offset that this function gives you.
Hope this helps,
--
Jiri Kosina
SUSE Labs
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: question on LEDs on keyboards
2008-10-14 13:32 ` Jiri Kosina
@ 2008-10-14 18:13 ` Oliver Neukum
2008-10-16 0:06 ` Jiri Kosina
0 siblings, 1 reply; 4+ messages in thread
From: Oliver Neukum @ 2008-10-14 18:13 UTC (permalink / raw)
To: Jiri Kosina; +Cc: linux-input
Am Dienstag, 14. Oktober 2008 15:32:41 schrieb Jiri Kosina:
> On Tue, 14 Oct 2008, Oliver Neukum wrote:
>
> > I found an error in the hid autosuspend patches. Keyboards can have more
> > than one LED. Is there a way to query the HID layer about active LEDs?
>
> Hi Oliver,
>
> you can either get the information from the underlying input device, or
> you can use hidinput_find_field() to find the fields of EV_LED type, and
> obtain the value from the offset that this function gives you.
What is the prefered way of doing that? There seems to be no hid_get_field().
Regards
Oliver
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: question on LEDs on keyboards
2008-10-14 18:13 ` Oliver Neukum
@ 2008-10-16 0:06 ` Jiri Kosina
0 siblings, 0 replies; 4+ messages in thread
From: Jiri Kosina @ 2008-10-16 0:06 UTC (permalink / raw)
To: Oliver Neukum; +Cc: linux-input
On Tue, 14 Oct 2008, Oliver Neukum wrote:
> > > I found an error in the hid autosuspend patches. Keyboards can have more
> > > than one LED. Is there a way to query the HID layer about active LEDs?
> > you can either get the information from the underlying input device, or
> > you can use hidinput_find_field() to find the fields of EV_LED type, and
> > obtain the value from the offset that this function gives you.
> What is the prefered way of doing that? There seems to be no hid_get_field().
Yes, there is no such function yet. If you need it in autosuspend patch
and implement it, I'll happily merge it.
Thanks,
--
Jiri Kosina
SUSE Labs
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2008-10-16 0:06 UTC | newest]
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2008-10-14 13:20 question on LEDs on keyboards Oliver Neukum
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