Re: Which process is using an ALSA driver.

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On Wednesday 17 September 2008 05:47:40 Eliot Blennerhassett wrote:
> Greetings.
>
> can anyone tell me how to find out which processes are using an ALSA
> driver and preventing it from being unloaded.
>

Not only files, but also other modules will prevent alsa drivers from being 
unloaded. If you do an "lsmod", the 3rd column will show "Used by". The ones 
that don't have a value in this column are not used and should be the first 
ones to unload, then move down the chain until you've reached the main module 
you want to unload.


> I know that "lsof /dev/snd"  will tell me who has these files open, but
> often this shows nothing and still the driver can't be unloaded.
>
> Where else should I look?
>
> Is there an equivalent to lsof for memory mapped regions?
>
>
> --
> Eliot
>
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