Alsa channels muted - why

David Zeuthen david at fubar.dk
Wed Apr 6 17:40:45 UTC 2005


On Wed, 2005-04-06 at 13:25 -0400, Jeff Spaleta wrote:
> On Apr 6, 2005 12:26 PM, Ivan Gyurdiev <ivg2 at cornell.edu> wrote:
> > What was wrong with it prior to this work - isn't this supposed to
> > happen at modprobe time anyway?
> 
> udev adds a wrinkle. My understanding is that sometimes... udev
> doesn't finish creating the needed /dev/ entries before the modprobe
> script fires.

This is pretty much a feature of the Linux 2.6 kernel and udev combo.
Search the lkml for threads about why this is so.

>  I don't think udev has a mechanism to communicate back
> to modprobe with a "hey I'm done, run your install scripts now."  So
> as a result some people/hardware see this problem and some
> people/hardware doesn't.

This is exactly why we have the dev.d notifiers.

Cheers,
David





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