pcm_format_first (reference) in projects: linux-4.1.27

279 	unsigned int pcm_format_first:1; /* PCM format must be set first */  member

4681 	codec->pcm_format_first = 1;  in patch_ca0132()

439 - pcm_format_first (bool): sets the PCM format before the stream tag

/linux-4.1.27/sound/pci/hda/
D	hda_codec.h	`279 unsigned int pcm_format_first:1; /* PCM format must be set first */ member`
D	hda_codec.c	`1204 if (codec->pcm_format_first) in snd_hda_codec_setup_stream() 1207 if (!codec->pcm_format_first) in snd_hda_codec_setup_stream()`
D	patch_ca0132.c	`4681 codec->pcm_format_first = 1; in patch_ca0132()`
D	hda_generic.c	`130 codec->pcm_format_first = !!val; in parse_user_hints()`
/linux-4.1.27/Documentation/sound/alsa/
D	HD-Audio.txt	`439 - pcm_format_first (bool): sets the PCM format before the stream tag`