[alsa-devel] twl4030 and Puredata/jack

[Anders Alex]

On Sat, Mar 9, 2013 at 9:21 PM, Gabriel M. Beddingfield
<gabrbedd at gmail.com>wrote:

> Strange.  In kernel 3.2, omap-mcbsp-dai.1 (McBSP1) is used for the codec.
>  But in the mainline it's omap-mcbsp-dai.2.
>
> So the question is... how is the board wired?  And does your kernel match
> the board?

1) no idea 2) it should, yes.


> Looking at the source, it looks like hw:0,0 has no capture port.  Try
> adding the -P parameter to jackd.  Playback only.
>
Hmm, when I do that I get:

[419034.693756] Alignment trap: not handling instruction edc46a06 at
[<4022ce2c>]
[419034.693878] Unhandled fault: alignment exception (0x801) at 0x4019e1e6

In dmesg.
Apparently this is/was a known issue on jack2 and has been fixed there.
No idea about jack1 (which I'm currently running). Will try to compile
latest jack2 and report back on this.


Also, post the output of:
>
>    $ cat /proc/asound/devices
>

$ cat /proc/asound/devices
  0: [ 0]   : control
  1:        : sequencer
 16: [ 0- 0]: digital audio playback
 17: [ 0- 1]: digital audio playback
 24: [ 0- 0]: digital audio capture
 25: [ 0- 1]: digital audio capture
 33:        : time


>
> -gabriel
>
>