diff options
| -rw-r--r-- | sound/usb/pcm.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index f488a493a98e..769821c30031 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -362,6 +362,19 @@ static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt) attr = fmt->ep_attr & USB_ENDPOINT_SYNCTYPE; switch (subs->stream->chip->usb_id) { + case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ + if (is_playback) { + implicit_fb = 1; + ep = 0x81; + iface = usb_ifnum_to_if(dev, 3); + + if (!iface || iface->num_altsetting == 0) + return -EINVAL; + + alts = &iface->altsetting[1]; + goto add_sync_ep; + } + break; case USB_ID(0x0763, 0x2080): /* M-Audio FastTrack Ultra */ case USB_ID(0x0763, 0x2081): if (is_playback) { |