At Tue, 11 Mar 2014 09:34:14 -0400, Jason Mancine wrote:
My question is how did you check that the 32bit format is used. And, don't do top-posting.
Takashi
Sorry, i am unsure how to not top post when replying via email.
With capture and playback .formats set to SNDRV_PCM_FMTBIT_S24_3LE, jack log shows:
ALSA: final selected sample format for playback: 32bit integer little-endian
and
/proc/asound/R16/stream0 shows:
Playback: Status: Stop Interface 1 Altset 1 Format: S32_LE Channels: 2 Endpoint: 3 OUT (ADAPTIVE) Rates: 44100, 48000, 88200, 96000 Data packet interval: 125 us
Capture: Status: Stop Interface 2 Altset 1 Format: S32_LE Channels: 8 Endpoint: 4 IN (SYNC) Rates: 44100, 48000, 88200, 96000 Data packet interval: 125 us
And are you sure that you patched correctly? For example, if you change the available rates in addition, does the patched kernel also show the same change?
Takashi
On Mar 11, 2014 3:09 AM, "Takashi Iwai" tiwai@suse.de wrote:
At Mon, 10 Mar 2014 16:44:19 -0400, Jason Mancine wrote:
Yes, I have tried those .formats with no luck...it still
initializes at
32
How did you check it?
Takashi
On Mar 10, 2014 4:29 PM, "Alan Horstmann" gineera@aspect135.co.uk
wrote:
On Monday 10 March 2014 14:36, Jason Mancine wrote: > I am still working on trying to get the R16 to work for
playback.
> So, the main question is how do I force ALSA to initialize this
device at
> 24 bit integer?
Isn't the answer in Takashi's original reply...?
> > On Dec 6, 2013 11:25 AM, "Takashi Iwai" tiwai@suse.de
wrote:
> >> Do you mean the 24bit physical size, i.e. each frame is
packed in
3
> >> bytes? If so, you used a wrong format.
SNDRV_PCM_FMTBIT_S24_LE
is
> >> for 24bit format packed in 32bit frame. If you need a
3-bytes
frame,
> >> use SNDRV_PCM_FMTBIT_S24_3LE instead.
Many USB devices have this...
> .type =
QUIRK_AUDIO_FIXED_ENDPOINT,
> .data = & (const struct
audioformat)
{
> .formats =
SNDRV_PCM_FMTBIT_S24_LE,
.formats =SNDRV_PCM_FMTBIT_S24_3LE,
instead. That would apply for capture also. Or is that what you
have
been
trying?
Regards
Alan
Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
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