Re: [alsa-devel] ICE1724 - File descriptor in bad state when capturing

Pavel Hofman wrote:

Whereas for the broken analog input, the sequence is

1. snd_pcm_lib_read1 with SNDRV_PCM_STATE_PREPARED - returns 0
2. snd_pcm_lib_read1 with SNDRV_PCM_STATE_SETUP - returns -EBADFD

I'd guess that your trigger callback fails somehow, bit this is hard to determine without the source code.

Regards, Clemens