diff options
| author | Wu Fengguang <wfg@linux.intel.com> | 2011-05-03 17:35:31 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-05-10 12:58:43 -0700 |
| commit | a4820502949b8e81fba83c98704e1af8806c5a98 (patch) | |
| tree | 0f7fc540fe11445271a18c773a92b024899884f4 | |
| parent | 3ca13bdb3c79e8a5e79ddeddacdae3bd4611ab5d (diff) | |
intel_sst: MRST can only do 16bit recording
Fix bug
$ arecord -D dsnoop -r 48000 -f S16_LE 1.wav
ALSA lib pcm_direct.c:980:(snd1_pcm_direct_initialize_slave) unable to install hw params
ALSA lib pcm_dsnoop.c:604:(snd_pcm_dsnoop_open) unable to initialize slave
arecord: main:654: audio open error: Interrupted system call
Root cause is, the driver is reporting 32-bit capture capability
that is not supported by the MRST hardware. So the dsnoop plugin
end up requesting 32-bit capture which fails.
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/staging/intel_sst/intelmid.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/staging/intel_sst/intelmid.c b/drivers/staging/intel_sst/intelmid.c index 0b9b1b64c9c4..cbe09f2bde39 100644 --- a/drivers/staging/intel_sst/intelmid.c +++ b/drivers/staging/intel_sst/intelmid.c @@ -339,8 +339,11 @@ static int snd_intelmad_open(struct snd_pcm_substream *substream, /* * MRST firmware currently denies stereo recording requests. */ - if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { + runtime->hw.formats = (SNDRV_PCM_FMTBIT_S16 | + SNDRV_PCM_FMTBIT_U16); runtime->hw.channels_max = 1; + } } if (intelmaddata->cpu_id == CPU_CHIP_PENWELL) { runtime->hw = snd_intelmad_stream; |