* Custom IOCTL call
@ 2010-12-10 19:42 Radivoje Jovanovic
2010-12-10 23:23 ` Eliot Blennerhassett
2010-12-13 9:00 ` Clemens Ladisch
0 siblings, 2 replies; 3+ messages in thread
From: Radivoje Jovanovic @ 2010-12-10 19:42 UTC (permalink / raw)
To: alsa-devel
I am writing custom IOCTL calls for my card. I have made hwdep interface and
set ioctl ops call for it. But, now the question is which device I need to
open in my user space app to talk to correct ioctl?
I have tried /dev/snd/controlC0
and /dev/snd/pcmC0D0p
Both of theses returned invalid IOCTL.
Cheers
Ogi
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Custom IOCTL call
2010-12-10 19:42 Custom IOCTL call Radivoje Jovanovic
@ 2010-12-10 23:23 ` Eliot Blennerhassett
2010-12-13 9:00 ` Clemens Ladisch
1 sibling, 0 replies; 3+ messages in thread
From: Eliot Blennerhassett @ 2010-12-10 23:23 UTC (permalink / raw)
To: Radivoje Jovanovic; +Cc: alsa-devel
On 11/12/10 08:42, Radivoje Jovanovic wrote:
> I am writing custom IOCTL calls for my card. I have made hwdep interface and
> set ioctl ops call for it. But, now the question is which device I need to
> open in my user space app to talk to correct ioctl?
/dev/snd/hwC0D0
> I have tried /dev/snd/controlC0
> and /dev/snd/pcmC0D0p
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Custom IOCTL call
2010-12-10 19:42 Custom IOCTL call Radivoje Jovanovic
2010-12-10 23:23 ` Eliot Blennerhassett
@ 2010-12-13 9:00 ` Clemens Ladisch
1 sibling, 0 replies; 3+ messages in thread
From: Clemens Ladisch @ 2010-12-13 9:00 UTC (permalink / raw)
To: Radivoje Jovanovic; +Cc: alsa-devel
Radivoje Jovanovic wrote:
> I am writing custom IOCTL calls for my card. I have made hwdep interface and
> set ioctl ops call for it. But, now the question is which device I need to
> open in my user space app to talk to correct ioctl?
You should use snd_hwdep_open(... "hw:0" ) and snd_hwdep_ioctl().
Regards,
Clemens
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2010-12-13 8:57 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2010-12-10 19:42 Custom IOCTL call Radivoje Jovanovic
2010-12-10 23:23 ` Eliot Blennerhassett
2010-12-13 9:00 ` Clemens Ladisch
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