does it help if you change the periods_min from 1 to 2 if it has two
buffers ?
#define FM801_PLY_BUF1 0x0c /* Playback Bufer I */
#define FM801_PLY_BUF2 0x10 /* Playback Buffer II */
static struct snd_pcm_hardware snd_fm801_playback =
{
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_MMAP_VALID),
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
.rate_min = 5500,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = (128*1024),
.period_bytes_min = 64,
.period_bytes_max = (128*1024),
.periods_min = 1,
.periods_max = 1024,
.fifo_size = 0,
};
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https://bugs.launchpad.net/bugs/463685
Title:
FM801 sound chips doesn't play nice songs
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