[Pkg-alsa-devel] Bug#574844: SNDRV_PCM_IOCTL_RESUME failed: Function not implemented

[Reinhard Tartler]

On Tue, Aug 03, 2010 at 17:03:52 (EDT), Elimar Riesebieter wrote:

> * Reinhard Tartler [100803 16:17 -0400]:
>> On Tue, Aug 03, 2010 at 14:09:37 (EDT), Elimar Riesebieter wrote:
>> 
>> > did one read the chapter "reloading modules across APM
>> > suspend-and-resume" of /usr/share/doc/alsa-base/README.Debian?
>> 
>> This is just working around bugs in the alsa drivers in a very crude
>> way; I don't think that reloading modules is a good way to solve this problem.
>
> Why?

a) it doesn't work when the drivers are built statically into the kernel
b) won't libasound2 and running applications be horribly confused when
   the device is being removed?

> Do we have to discuss those bugs upstream [0] ?

I'm really no alsa expert at all, but I imagine that libalsa manages
some kind of handles for the available soundcards and their
configurations.  without knowing the details I cannot really say if and
what problems this causes, it just feels from an application programmers
POV very crude.


-- 
Gruesse/greetings,
Reinhard Tartler, KeyID 945348A4