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authorJoris van Rantwijk <jorispubl@xs4all.nl>2009-02-16 22:58:23 +0100
committerTakashi Iwai <tiwai@suse.de>2009-02-16 22:58:23 +0100
commit3b03cc5b86e2052295b9b484f37226ee15c87924 (patch)
treef6819194e917055062731ae0e5eea36631ca8892
parent0412558c873f716efe902b397af0653a550f7341 (diff)
ALSA: usb-audio - Workaround for misdetected sample rate with CM6207
The CM6207 incorrectly advertises its 96 kHz playback setting as 48 kHz in its USB device descriptor. This patch extends an existing workaround in usbaudio.c to also cover the CM6207. This resolves issue 0004249 in the ALSA bug tracker. Signed-off-by: Joris van Rantwijk <jorispubl@xs4all.nl> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/usb/usbaudio.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index 80863093d2c..19e37451c21 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -2539,7 +2539,8 @@ static int parse_audio_format_rates(struct snd_usb_audio *chip, struct audioform
continue;
/* C-Media CM6501 mislabels its 96 kHz altsetting */
if (rate == 48000 && nr_rates == 1 &&
- chip->usb_id == USB_ID(0x0d8c, 0x0201) &&
+ (chip->usb_id == USB_ID(0x0d8c, 0x0201) ||
+ chip->usb_id == USB_ID(0x0d8c, 0x0102)) &&
fp->altsetting == 5 && fp->maxpacksize == 392)
rate = 96000;
fp->rate_table[fp->nr_rates] = rate;