| Message ID | 1604999048-20294-1-git-send-email-macpaul.lin@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3] ALSA: usb-audio: disable 96khz support for HUAWEI USB-C HEADSET | expand |
On Tue, 2020-11-10 at 17:04 +0800, Macpaul Lin wrote: > The HUAWEI USB-C headset (VID:0x12d1, PID:0x3a07) reported it supports > 96khz. However there will be some random issue under 96khz. > Not sure if there is any alternate setting could be applied. > Hence 48khz is suggested to be applied at this moment. > > Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com> > Signed-off-by: Eddie Hung <eddie.hung@mediatek.com> > Cc: stable@vger.kernel.org > --- > Changes for v2: > - Fix build error. > - Add Cc: stable@vger.kernel.org > Changes for v3: > - Replace "udev" with "chip->dev" according to Takashi's suggestion. Thanks. > > sound/usb/format.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/sound/usb/format.c b/sound/usb/format.c > index 1b28d01..0aff774 100644 > --- a/sound/usb/format.c > +++ b/sound/usb/format.c > @@ -217,6 +217,11 @@ static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audiof > (chip->usb_id == USB_ID(0x041e, 0x4064) || > chip->usb_id == USB_ID(0x041e, 0x4068))) > rate = 8000; > + /* Huawei headset can't support 96kHz fully */ > + if (rate == 96000 && > + chip->usb_id == USB_ID(0x12d1, 0x3a07) && > + le16_to_cpu(chip->dev->descriptor.bcdDevice) == 0x49) > + continue; > > fp->rate_table[fp->nr_rates] = rate; > if (!fp->rate_min || rate < fp->rate_min) Sorry for bothering again, please hold-on this patch. I'm still trying to clarify if there is another approach for this interoperability issue. I'll update this thread once the result has came out. Thanks Macpaul Lin
On Wed, 18 Nov 2020 06:26:06 +0100, Macpaul Lin wrote: > > On Tue, 2020-11-10 at 17:04 +0800, Macpaul Lin wrote: > > The HUAWEI USB-C headset (VID:0x12d1, PID:0x3a07) reported it supports > > 96khz. However there will be some random issue under 96khz. > > Not sure if there is any alternate setting could be applied. > > Hence 48khz is suggested to be applied at this moment. > > > > Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com> > > Signed-off-by: Eddie Hung <eddie.hung@mediatek.com> > > Cc: stable@vger.kernel.org > > --- > > Changes for v2: > > - Fix build error. > > - Add Cc: stable@vger.kernel.org > > Changes for v3: > > - Replace "udev" with "chip->dev" according to Takashi's suggestion. Thanks. > > > > sound/usb/format.c | 5 +++++ > > 1 file changed, 5 insertions(+) > > > > diff --git a/sound/usb/format.c b/sound/usb/format.c > > index 1b28d01..0aff774 100644 > > --- a/sound/usb/format.c > > +++ b/sound/usb/format.c > > @@ -217,6 +217,11 @@ static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audiof > > (chip->usb_id == USB_ID(0x041e, 0x4064) || > > chip->usb_id == USB_ID(0x041e, 0x4068))) > > rate = 8000; > > + /* Huawei headset can't support 96kHz fully */ > > + if (rate == 96000 && > > + chip->usb_id == USB_ID(0x12d1, 0x3a07) && > > + le16_to_cpu(chip->dev->descriptor.bcdDevice) == 0x49) > > + continue; > > > > fp->rate_table[fp->nr_rates] = rate; > > if (!fp->rate_min || rate < fp->rate_min) > > Sorry for bothering again, please hold-on this patch. > I'm still trying to clarify if there is another approach for this > interoperability issue. > I'll update this thread once the result has came out. OK, thanks for information. Takashi
diff --git a/sound/usb/format.c b/sound/usb/format.c index 1b28d01..0aff774 100644 --- a/sound/usb/format.c +++ b/sound/usb/format.c @@ -217,6 +217,11 @@ static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audiof (chip->usb_id == USB_ID(0x041e, 0x4064) || chip->usb_id == USB_ID(0x041e, 0x4068))) rate = 8000; + /* Huawei headset can't support 96kHz fully */ + if (rate == 96000 && + chip->usb_id == USB_ID(0x12d1, 0x3a07) && + le16_to_cpu(chip->dev->descriptor.bcdDevice) == 0x49) + continue; fp->rate_table[fp->nr_rates] = rate; if (!fp->rate_min || rate < fp->rate_min)