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authorMarco Giunta <giun7a@gmail.com>2021-10-18 18:25:52 +0200
committerTakashi Iwai <tiwai@suse.de>2021-10-19 08:07:01 +0200
commit29664923725a384dc7e0f74af7c66e5ab7bb2a26 (patch)
tree08dfea8f7bd5617cb1b054cae312859b643cc21c /sound/usb/quirks.c
parenteadeb06e7645f7a7ddbcfac39480be3892a60ae3 (diff)
ALSA: usb-audio: Fix microphone sound on Jieli webcam.
When a Jieli Technology USB Webcam is connected, the video part works well, but the mic sound is speeded up. On dmesg there are messages about different rates from the runtime rates, warnings about volume resolution and lastly, the log is filled, every 5 seconds, with retire_capture_urb error messages. The mic works only when ep packet size is set to wMaxPacketSize (normal sound and no more retire_capture_urb error messages). Skipping reading sample rate, fixes the messages about different rates and forcing a volume resolution, fixes warnings about volume range. I have arbitrarily choosed the value (16): I read in a comment that there should be no more than 255 levels, so 4096 (max volume) / 16 = 0-255. Signed-off-by: Marco Giunta <giun7a@gmail.com> Link: https://lore.kernel.org/r/20211018162552.12082-1-giun7a@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/quirks.c')
-rw-r--r--sound/usb/quirks.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index b8da4a08c458..8929d9abe8aa 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1719,6 +1719,11 @@ void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
*/
fp->attributes &= ~UAC_EP_CS_ATTR_FILL_MAX;
break;
+ case USB_ID(0x1224, 0x2a25): /* Jieli Technology USB PHY 2.0 */
+ /* mic works only when ep packet size is set to wMaxPacketSize */
+ fp->attributes |= UAC_EP_CS_ATTR_FILL_MAX;
+ break;
+
}
}
@@ -1890,6 +1895,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
QUIRK_FLAG_GET_SAMPLE_RATE),
DEVICE_FLG(0x534d, 0x2109, /* MacroSilicon MS2109 */
QUIRK_FLAG_ALIGN_TRANSFER),
+ DEVICE_FLG(0x1224, 0x2a25, /* Jieli Technology USB PHY 2.0 */
+ QUIRK_FLAG_GET_SAMPLE_RATE),
/* Vendor matches */
VENDOR_FLG(0x045e, /* MS Lifecam */