> On Sat, 8 Nov 2003, Ryan Cassidy wrote:
>
> > > Paul Davis wrote:
**
> > > the ALSA PCM API doesn't have "handlers". it doesn't provide any
kind
> > > of callback mechanism. what it does do is to provide a poll(2)
> > > interface, allowing callback
Greetings ALSA comrades:
I would like to right a small jack playback application that
accomplishes the following:
- Accurately determines (via the IA32 TSC register, perhaps) how long it
takes after the interrupt (i.e. the audio device's PCI interrupt
signaling the need for new playback samples)
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Behalf Of Justin
> Cormack
> Sent: Monday, December 29, 2003 10:50 AM
> To: Mark Knecht
> Cc: alsa list
> Subject: RE: [Alsa-devel] Why does Alsa sometimes not find the HDSP
> 9652? -SOLVED
>
>
> Ah. that explains
Ah. that explains why I have never seen it - I always let my machines
boot up from grub on the full timeout and most of them have pretty slow
bootup processes. It is probably best to retry for 1 minute or so in
module init to allow for very fast boots (after all the pci id has
matched, so only brok
Hi Justin,
It looks like I solved this problem in the last few days. The issue
appears to driven by how Alsa, or possibly the snd-hdsp driver specifically,
attempts to discover the HDSP 9652, and the fact that my machine is
moderately fast. I think this is a bug, or at least an opportunity to al
>That kind of argument would just corroborate the TransGaming report that
>ALSA is no good overhead-wise, which is probably not what the ALSA
>developers wish to do here.
i wasn't talking about ALSA. i was talking about audio hardware and
programming models in general. ALSA will allow pretty much
>although i agree that from a pragmatic perspective, it would be good
>to understand how to use ALSA to do this.
>
>however, this model of audio programming is not portable, and has
>gotten people into trouble before, not just under Linux.
>
>making the assumption that direct access at all times to
>> We have been unable to find a way to tell ALSA, through
>> snd_pcm_mmap_begin(), where we want to write data when using the mmap
>> api. OSS doesn't have this restriction and this is the only documented
>> way we can see to support sound engines which mix in new sounds using
>> looping buffe
Hi,
I'm a happy user of software suspend [http://swsusp.sf.net].
Unfortunately, my soundcard (via686b/via82xx) doesn't work after resume
because of missing PM hooks. If I unload/reload the modules everything is
fine, but this is of course not very nice (have to kill all apps accessing
the sound dev
On Wed, 24 Dec 2003, Peter Hunnisett wrote:
> >What's looping sound? You can initiate endless ring buffer looping when
> >you set stop_threshold to boundary (sw_params). I think that this
> >major drawback does not exist.
> >
> >
>
> Thanks for pointing out that sound looping is possible in a r
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