* [PATCH] usbaudio: Fix wrong bitrate for Creative Creative VF0470 Live Cam
@ 2010-03-02 11:52 Arseniy Lartsev
2010-03-02 12:06 ` Takashi Iwai
0 siblings, 1 reply; 2+ messages in thread
From: Arseniy Lartsev @ 2010-03-02 11:52 UTC (permalink / raw)
To: Takashi Iwai; +Cc: linux-kernel
This patch works around misbehaviour of Creative Creative VF0470 Live Cam
which reports 16 kHz sample rate for audio capture while actually producing
8 kHz stream.
Signed-off-by: Arseniy Lartsev <arseniy@fizlesh.ru>
--
diff -rup linux-2.6.33-rc8-orig/sound/usb/usbaudio.c linux-2.6.33-
rc8/sound/usb/usbaudio.c
--- linux-2.6.33-rc8-orig/sound/usb/usbaudio.c
+++ linux-2.6.33-rc8/sound/usb/usbaudio.c
@@ -2513,6 +2513,9 @@ static int parse_audio_format_rates(stru
chip->usb_id == USB_ID(0x0d8c, 0x0102)) &&
fp->altsetting == 5 && fp->maxpacksize == 392)
rate = 96000;
+ /* Creative VF0470 Live Cam reports 16 kHz instead of 8 */
+ if ((rate == 16000) && (chip->usb_id == USB_ID(0x041e, 0x4068)))
+ rate = 8000;
fp->rate_table[fp->nr_rates] = rate;
if (!fp->rate_min || rate < fp->rate_min)
fp->rate_min = rate;
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] usbaudio: Fix wrong bitrate for Creative Creative VF0470 Live Cam
2010-03-02 11:52 [PATCH] usbaudio: Fix wrong bitrate for Creative Creative VF0470 Live Cam Arseniy Lartsev
@ 2010-03-02 12:06 ` Takashi Iwai
0 siblings, 0 replies; 2+ messages in thread
From: Takashi Iwai @ 2010-03-02 12:06 UTC (permalink / raw)
To: Arseniy Lartsev; +Cc: linux-kernel
At Tue, 2 Mar 2010 14:52:28 +0300,
Arseniy Lartsev wrote:
>
> This patch works around misbehaviour of Creative Creative VF0470 Live Cam
> which reports 16 kHz sample rate for audio capture while actually producing
> 8 kHz stream.
>
> Signed-off-by: Arseniy Lartsev <arseniy@fizlesh.ru>
Thanks. Applied now with minor coding-style fixes.
Takashi
> --
> diff -rup linux-2.6.33-rc8-orig/sound/usb/usbaudio.c linux-2.6.33-
> rc8/sound/usb/usbaudio.c
> --- linux-2.6.33-rc8-orig/sound/usb/usbaudio.c
> +++ linux-2.6.33-rc8/sound/usb/usbaudio.c
> @@ -2513,6 +2513,9 @@ static int parse_audio_format_rates(stru
> chip->usb_id == USB_ID(0x0d8c, 0x0102)) &&
> fp->altsetting == 5 && fp->maxpacksize == 392)
> rate = 96000;
> + /* Creative VF0470 Live Cam reports 16 kHz instead of 8 */
> + if ((rate == 16000) && (chip->usb_id == USB_ID(0x041e, 0x4068)))
> + rate = 8000;
> fp->rate_table[fp->nr_rates] = rate;
> if (!fp->rate_min || rate < fp->rate_min)
> fp->rate_min = rate;
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2010-03-02 11:52 [PATCH] usbaudio: Fix wrong bitrate for Creative Creative VF0470 Live Cam Arseniy Lartsev
2010-03-02 12:06 ` Takashi Iwai
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