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List:       linux-sound
Subject:    Re: /dev/dsp : no such device
From:       Venkat S <venks () surffast ! com>
Date:       2002-10-22 3:56:16
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Hi
 
Yes, I checked lsmod. the sound module had been autounloaded,
but the next open(/dev/dsp) resulted in the drivers being 
loaded, and hence the open succeeded. this, although i had the 
program waiting for the external trigger for quite some time(the
problem scenario). Now i am lost!
 
So, do you think there could be a problem with open() failing
before the insmod of the sound modules can complete?
 
venkat


--- Zwane Mwaikambo <zwane@linuxpower.ca> wrote:
> On Mon, 21 Oct 2002, Venkat S wrote:
> 
> > Now, the problem is that, sometimes, when i send a trigger to the main thread to \
> > start the ring tone, i start the pthread for playing ringtone, and when i try \
> > opening /dev/dsp1, it gives me a perror with "No such Device". After some \
> > observation, I found that there seemed to some pattern. If I were to leave this \
> > program running for some time without any tone being played, and THEN provided an \
> > external trigger to start the tone, the open on the device always fails. On the \
> > other hand, if I were to continually toggle between playing and stopping the \
> > tone, it seems to work fine, without any issues. What am I doing wrong? and would \
> > any of you have any idea about the root cause.
> 
> Perhaps the driver is being 'autounloaded' ? Check with lsmod
> 
> 	Zwane
> -- 
> function.linuxpower.ca

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