[alsa-devel] idt blue jack patch

[Wu Fengguang]

On Mon, Feb 23, 2009 at 06:15:18PM +0200, Takashi Iwai wrote:
> At Mon, 23 Feb 2009 14:00:43 +0100,
> I wrote:
> > > > > - if reconfig while playing audio, it will trigger a panic:
> > > > 
> > > > Ah, that's bad.  I know this can be a problem (and thus is marked as
> > > > EXPERIMENTAL :)
> > > > 
> > > > We need some mutex and/or flag to disable the reconfig during the
> > > > critical operation.
> > > 
> > > It won't be a trivial work. The reset/rebuild is a long and complex process.
> > > For the moment I'd suggest to simply fail reconfig if there are active streams,
> > 
> > Yep, that's what I thought of, too.
> > 
> > > so as to let this useful feature go upstream ASAP.
> > 
> > I'll merge the branch soon later.
> 
> FYI, now the branch is merged to master.
> The dynamic pincfg feature is available on alsa-driver snapshot, too.
> 
> Also, I added the check of opened streams before doing clear/reconfig
> work so that the kernel panic won't happen so easily.

That's great, thank you!

Regards,
Fengguang