* ioctl problem - help please!!
@ 2010-02-02 21:34 Rene E. Henriquez G.
2010-02-04 9:45 ` Clemens Ladisch
0 siblings, 1 reply; 4+ messages in thread
From: Rene E. Henriquez G. @ 2010-02-02 21:34 UTC (permalink / raw)
To: alsa-devel
Good day to everyone.
I'm developing a system in which I need to gather some entropy from
/dev/random. In order to increase the entropy, I'm using a daemon called
audio-entropyd from Folkert van Heusden, but it has some problems that maybe
you guys can help me with this.
Does anybody know what might cause this:
2925 open("/dev/snd/pcmC0D0c", O_RDWR|O_NONBLOCK) = 5
2925 ioctl(5, 0x80184151, 0x7ffff3351890) = -1 EIO (Input/output error)
to give EIO?
The daemon just stops with the KILL signal.
Thanks for reading this, I really need your assistance for this please.
Regards,
René.
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: ioctl problem - help please!!
2010-02-02 21:34 ioctl problem - help please!! Rene E. Henriquez G.
@ 2010-02-04 9:45 ` Clemens Ladisch
2010-02-04 20:31 ` Rene E. Henriquez G.
2010-02-04 20:33 ` Rene E. Henriquez G.
0 siblings, 2 replies; 4+ messages in thread
From: Clemens Ladisch @ 2010-02-04 9:45 UTC (permalink / raw)
To: Rene E. Henriquez G.; +Cc: alsa-devel
Rene E. Henriquez G. wrote:
> Does anybody know what might cause this:
>
> 2925 open("/dev/snd/pcmC0D0c", O_RDWR|O_NONBLOCK) = 5
> 2925 ioctl(5, 0x80184151, 0x7ffff3351890) = -1 EIO (Input/output error)
>
> to give EIO?
Some error detected by the driver. Which driver?
Does normal recording work?
Regards,
Clemens
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: ioctl problem - help please!!
2010-02-04 9:45 ` Clemens Ladisch
@ 2010-02-04 20:31 ` Rene E. Henriquez G.
2010-02-04 20:33 ` Rene E. Henriquez G.
1 sibling, 0 replies; 4+ messages in thread
From: Rene E. Henriquez G. @ 2010-02-04 20:31 UTC (permalink / raw)
To: Clemens Ladisch; +Cc: alsa-devel
Thanks a lot for your reply Clemens.
The driver is Type
On Thu, Feb 4, 2010 at 3:45 AM, Clemens Ladisch <clemens@ladisch.de> wrote:
> Rene E. Henriquez G. wrote:
> > Does anybody know what might cause this:
> >
> > 2925 open("/dev/snd/pcmC0D0c", O_RDWR|O_NONBLOCK) = 5
> > 2925 ioctl(5, 0x80184151, 0x7ffff3351890) = -1 EIO (Input/output error)
> >
> > to give EIO?
>
> Some error detected by the driver. Which driver?
> Does normal recording work?
>
>
> Regards,
> Clemens
>
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: ioctl problem - help please!!
2010-02-04 9:45 ` Clemens Ladisch
2010-02-04 20:31 ` Rene E. Henriquez G.
@ 2010-02-04 20:33 ` Rene E. Henriquez G.
1 sibling, 0 replies; 4+ messages in thread
From: Rene E. Henriquez G. @ 2010-02-04 20:33 UTC (permalink / raw)
To: Clemens Ladisch; +Cc: alsa-devel
Thanks a lot for your reply Clemens.
The driver is Type 10 ALSA emulation.
Yes, normal recording just works fine with the following command:
arecord -f dat -d 2800 audioDAT.wav
I'll wait for your comments, and thanks again.
René.
PS: Sorry for the uncompleted mail before... wrong keystroke
On Thu, Feb 4, 2010 at 3:45 AM, Clemens Ladisch <clemens@ladisch.de> wrote:
> Rene E. Henriquez G. wrote:
> > Does anybody know what might cause this:
> >
> > 2925 open("/dev/snd/pcmC0D0c", O_RDWR|O_NONBLOCK) = 5
> > 2925 ioctl(5, 0x80184151, 0x7ffff3351890) = -1 EIO (Input/output error)
> >
> > to give EIO?
>
> Some error detected by the driver. Which driver?
> Does normal recording work?
>
>
> Regards,
> Clemens
>
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2010-02-04 20:33 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2010-02-02 21:34 ioctl problem - help please!! Rene E. Henriquez G.
2010-02-04 9:45 ` Clemens Ladisch
2010-02-04 20:31 ` Rene E. Henriquez G.
2010-02-04 20:33 ` Rene E. Henriquez G.
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