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ALSA: usb-audio: use a format bitmask per alternate setting

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In preparation for USB audio 2.0 support, change the audioformat
structure so that it uses a bitmask to specify possible formats.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Clemens Ladisch
2010-03-04 19:46:15 +01:00
committed by Takashi Iwai
parent e11b4e0e4f
commit 015eb0b081
8 changed files with 34 additions and 22 deletions
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9
sound/usb/proc.c
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@@ -79,11 +79,16 @@ static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct s
list_for_each(p, &subs->fmt_list) {
struct audioformat *fp;
snd_pcm_format_t fmt;
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: %s\n",
snd_pcm_format_name(fp->format));
snd_iprintf(buffer, " Format:");
for (fmt = 0; fmt <= SNDRV_PCM_FORMAT_LAST; ++fmt)
if (fp->formats & (1uLL << fmt))
snd_iprintf(buffer, " %s",
snd_pcm_format_name(fmt));
snd_iprintf(buffer, "\n");
snd_iprintf(buffer, " Channels: %d\n", fp->channels);
snd_iprintf(buffer, " Endpoint: %d %s (%s)\n",
fp->endpoint & USB_ENDPOINT_NUMBER_MASK,