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ALSA: snd-usb: add delay quirk for "Playback Design" products 

"Playback Design" products need a 50ms delay after setting the USB
interface.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Reported-by: Andreas Koch <andreas@akdesigninc.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
wifi-calibration
Daniel Mack 2013-03-17 20:07:26 +08:00 committed by Takashi Iwai
parent 717bfb5f46
commit 0959f22ee6
1 changed files with 7 additions and 0 deletions
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7
sound/usb/pcm.c
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@ -350,6 +350,13 @@ static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt)
fmt->iface, fmt->altsetting);
subs->interface = fmt->iface;
subs->altset_idx = fmt->altset_idx;
/*
* "Playback Design" products need a 50ms delay after setting the
* USB interface.
*/
if (le16_to_cpu(dev->descriptor.idVendor) == 0x23ba)
mdelay(50);
}
subs->data_endpoint = snd_usb_add_endpoint(subs->stream->chip,