From 3a572d94bcff98a14c94fe686881a169a26f3fca Mon Sep 17 00:00:00 2001 From: Jussi Laako Date: Wed, 13 Jun 2018 01:43:01 +0300 Subject: ALSA: usb-audio: Add native DSD support for Mytek DACs Add new mostly generic code with Mytek VID to support native DSD mode. This implementation should be easier to maintain when manufacturers release new products. Signed-off-by: Jussi Laako Signed-off-by: Takashi Iwai --- sound/usb/format.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'sound/usb/format.c') diff --git a/sound/usb/format.c b/sound/usb/format.c index 49e7ec6d2399..0a2a27f2854d 100644 --- a/sound/usb/format.c +++ b/sound/usb/format.c @@ -64,8 +64,11 @@ static u64 parse_audio_format_i_type(struct snd_usb_audio *chip, sample_width = fmt->bBitResolution; sample_bytes = fmt->bSubslotSize; - if (format & UAC2_FORMAT_TYPE_I_RAW_DATA) + if (format & UAC2_FORMAT_TYPE_I_RAW_DATA) { pcm_formats |= SNDRV_PCM_FMTBIT_SPECIAL; + /* flag potentially raw DSD capable altsettings */ + fp->dsd_raw = true; + } format <<= 1; break; -- cgit 1.4.1