From c7a13264918b9796f80c634f20fea56e1612572d Mon Sep 17 00:00:00 2001 From: Jussi Laako Date: Mon, 18 Feb 2019 00:17:21 +0200 Subject: ALSA: usb-audio: Expose sample resolution through proc interface At least some USB devices use (MSB-aligned) audio format larger than the actual resolution of the device. In order to expose the actual device resolution (bBitResolution), add extra field to the procfs stream info interface. Signed-off-by: Jussi Laako Signed-off-by: Takashi Iwai --- sound/usb/proc.c | 1 + 1 file changed, 1 insertion(+) (limited to 'sound/usb/proc.c') diff --git a/sound/usb/proc.c b/sound/usb/proc.c index e80c9d0749c9..ef9190530fd2 100644 --- a/sound/usb/proc.c +++ b/sound/usb/proc.c @@ -109,6 +109,7 @@ static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct s if (subs->speed != USB_SPEED_FULL) snd_iprintf(buffer, " Data packet interval: %d us\n", 125 * (1 << fp->datainterval)); + snd_iprintf(buffer, " Bits: %d\n", fp->fmt_bits); // snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize); // snd_iprintf(buffer, " EP Attribute = %#x\n", fp->attributes); } -- cgit v1.2.3