[alsa-devel] snd_dummy on Centos - Redhat

Takashi Iwai tiwai at suse.de
Thu Sep 3 17:10:29 CEST 2009

At Thu, 3 Sep 2009 17:03:16 +0200,
Giovanni Maruzzelli wrote:
> On Thu, Sep 3, 2009 at 4:47 PM, Giovanni
> Maruzzelli<gmaruzz.lists at gmail.com> wrote:
> > On Thu, Sep 3, 2009 at 4:29 PM, Takashi Iwai<tiwai at suse.de> wrote:
> >> Or, just copy alsa-kernel/drivers/dummy.c to your tree.
> >> There is no other changes except for documentation.
> > I will now try to compile from it's own snapshot tree, doing the ./configure.
> I'm sorry to say that actually it was worst than before for me, so
> maybe centos kernel is "non collaborative" (eg: no high res timers).

Then it falls back to the system timer, so it must work still.
To be sure, set hrtimer = 0 instead 1 in dummy.c.

If this still doesn't work, I'd recommend you to add a debug printk
at each call of dummy_systimer_pointer().  Print the returned result
together with jiffies value.


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