Hello All!
Look at the following code:
static struct snd_pcm_hardware snd_card_dummy_playback =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID),
.formats = USE_FORMATS,
.rates = USE_RATE,
.rate_min = USE_RATE_MIN,
.rate_max = USE_RATE_MAX,
.channels_min = USE_CHANNELS_MIN,
.channels_max = USE_CHANNELS_MAX,
.buffer_bytes_max = MAX_BUFFER_SIZE,
.period_bytes_min = 64,
.period_bytes_max = MAX_BUFFER_SIZE, // !!!
.periods_min = USE_PERIODS_MIN,
.periods_max = USE_PERIODS_MAX,
.fifo_size = 0,
};
Maybe it should be:
static struct snd_pcm_hardware snd_card_dummy_playback =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID),
.formats = USE_FORMATS,
.rates = USE_RATE,
.rate_min = USE_RATE_MIN,
.rate_max = USE_RATE_MAX,
.channels_min = USE_CHANNELS_MIN,
.channels_max = USE_CHANNELS_MAX,
.buffer_bytes_max = MAX_BUFFER_SIZE,
.period_bytes_min = 64,
.period_bytes_max = MAX_PERIOD_SIZE, // !!!
.periods_min = USE_PERIODS_MIN,
.periods_max = USE_PERIODS_MAX,
.fifo_size = 0,
};
The second possible bug:
static struct snd_kcontrol_new snd_dummy_controls[] = {
DUMMY_VOLUME("Master Volume", 0, MIXER_ADDR_MASTER),
DUMMY_CAPSRC("Master Capture Switch", 0, MIXER_ADDR_MASTER),
DUMMY_VOLUME("Synth Volume", 0, MIXER_ADDR_SYNTH),
DUMMY_CAPSRC("Synth Capture Switch", 0, MIXER_ADDR_MASTER),
DUMMY_VOLUME("Line Volume", 0, MIXER_ADDR_LINE),
DUMMY_CAPSRC("Line Capture Switch", 0, MIXER_ADDR_MASTER),
DUMMY_VOLUME("Mic Volume", 0, MIXER_ADDR_MIC),
DUMMY_CAPSRC("Mic Capture Switch", 0, MIXER_ADDR_MASTER),
DUMMY_VOLUME("CD Volume", 0, MIXER_ADDR_CD),
DUMMY_CAPSRC("CD Capture Switch", 0, MIXER_ADDR_MASTER)
};
I'm not sure, but I think it should be:
static struct snd_kcontrol_new snd_dummy_controls[] = {
DUMMY_VOLUME ("Master Volume", 0, MIXER_ADDR_MASTER),
DUMMY_CAPSRC ("Master Capture Switch", 0, MIXER_ADDR_MASTER),
DUMMY_VOLUME ("Synth Volume", 0, MIXER_ADDR_SYNTH),
DUMMY_CAPSRC ("Synth Capture Switch", 0, MIXER_ADDR_SYNTH),
DUMMY_VOLUME ("Line Volume", 0, MIXER_ADDR_LINE),
DUMMY_CAPSRC ("Line Capture Switch", 0, MIXER_ADDR_LINE),
DUMMY_VOLUME ("Mic Volume", 0, MIXER_ADDR_MIC),
DUMMY_CAPSRC ("Mic Capture Switch", 0, MIXER_ADDR_MIC),
DUMMY_VOLUME ("CD Volume", 0, MIXER_ADDR_CD),
DUMMY_CAPSRC ("CD Capture Switch", 0, MIXER_ADDR_CD)
};
Am I right?
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