sound: usb-audio: show sample format width in proc file

When listing the device's sample formats in the stream? proc file, the
sample format number itself is rather obscure, so we better show the
format width, too.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index c2db0f959681da6608e0906a580db3240000d45f..175c7d1da5cff73c451c9a7ce94ffa91ad709da0 100644 (file)
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -2147,7 +2147,8 @@ static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct s
                fp = list_entry(p, struct audioformat, list);
                snd_iprintf(buffer, "  Interface %d\n", fp->iface);
                snd_iprintf(buffer, "    Altset %d\n", fp->altsetting);
-               snd_iprintf(buffer, "    Format: %#x\n", fp->format);
+               snd_iprintf(buffer, "    Format: %#x (%d bits)\n",
+                           fp->format, snd_pcm_format_width(fp->format));
                snd_iprintf(buffer, "    Channels: %d\n", fp->channels);
                snd_iprintf(buffer, "    Endpoint: %d %s (%s)\n",
                            fp->endpoint & USB_ENDPOINT_NUMBER_MASK,