Ticket #190 (enhancement)

The PS3 ALSA interface doesn't support the RW_INTERLEAVED access mode.

[eb@ps3 audio]$ ./dial_tone.py
audio: using audio_alsa
PCM name: hw:0,0
Access types:
    MMAP_INTERLEAVED     NO
    MMAP_NONINTERLEAVED  YES
    MMAP_COMPLEX         NO
    RW_INTERLEAVED       NO
    RW_NONINTERLEAVED    YES
Formats:
    S16_BE               YES
    S24_BE               YES
Number of channels
    min channels: 2
    max channels: 2
    2 channels  YES
Sample Rates:
    min rate:   44100 (dir = 0)
    max rate:   96000 (dir = 0)
      8000  NO
     16000  NO
     22050  NO
     32000  NO
     44100  YES
     48000  YES
     96000  YES
    192000  NO
audio_alsa_sink[hw:0,0]: failed to set access mask: Invalid argument
Traceback (most recent call last):
  File "./dial_tone.py", line 55, in <module>
    my_top_block().run()
  File "./dial_tone.py", line 48, in __init__
    dst = audio.sink (sample_rate, options.audio_output)
  File "/usr/local/lib/python2.5/site-packages/gnuradio/audio_alsa.py", line 236, in sink
    return _audio_alsa.sink(*args)
RuntimeError: audio_alsa_sink