[alsa-devel] Capture not working in MMAP mode with '-v'

[Aggarwal, Anuj]

Hi,

When I try to capture audio in MMAP mode using the following command, it works properly:

arecord -f cd -d 10 -M rec01.wav

However, if I specify '-v' along with the above command, it fails to 
capture anything and prints log and returns immediately:

Recording WAVE 'rec03.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
Plug PCM: Hardware PCM card 0 'omap3evm' device 0 subdevice 0
Its setup is:
  stream       : CAPTURE
  access       : MMAP_INTERLEAVED
  format       : S16_LE
  subformat    : STD
  channels     : 2
  rate         : 44100
  exact rate   : 44100 (44100/1)
  msbits       : 16
  buffer_size  : 22052
  period_size  : 5513
  period_time  : 125011
  tstamp_mode  : NONE
  period_step  : 1
  avail_min    : 5513
  period_event : 0
  start_threshold  : 1
  stop_threshold   : 22052
  silence_threshold: 0
  silence_size : 0
  boundary     : 1445199872
  appl_ptr     : 0
  hw_ptr       : 0
mmap_area[0] = 0x4030e000,0,32 (16)
mmap_area[1] = 0x4030e000,16,32 (16)

I have not observed this problem while playing audio, only while capture this issue crops up.

Any pointers?

Thanks & Regards,
Anuj Aggarwal