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ALSA: usb-audio: Add a quirck for B&W PX headphones 

The capture interface doesn't work and the playback interface only
supports 48 kHz sampling rate even though it advertises more rates.

Signed-off-by: Erik Veijola <erik.veijola@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Erik Veijola 2018-02-23 14:06:52 +02:00 committed by Takashi Iwai
parent 1ba8f9d308
commit 240a8af929
1 changed files with 47 additions and 0 deletions
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47
sound/usb/quirks-table.h
View File

@ -3325,4 +3325,51 @@ AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"),
}
},
{
/*
* Bower's & Wilkins PX headphones only support the 48 kHz sample rate
* even though it advertises more. The capture interface doesn't work
* even on windows.
*/
USB_DEVICE(0x19b5, 0x0021),
.driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
.ifnum = QUIRK_ANY_INTERFACE,
.type = QUIRK_COMPOSITE,
.data = (const struct snd_usb_audio_quirk[]) {
{
.ifnum = 0,
.type = QUIRK_AUDIO_STANDARD_MIXER,
},
/* Capture */
{
.ifnum = 1,
.type = QUIRK_IGNORE_INTERFACE,
},
/* Playback */
{
.ifnum = 2,
.type = QUIRK_AUDIO_FIXED_ENDPOINT,
.data = &(const struct audioformat) {
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.channels = 2,
.iface = 2,
.altsetting = 1,
.altset_idx = 1,
.attributes = UAC_EP_CS_ATTR_FILL_MAX |
UAC_EP_CS_ATTR_SAMPLE_RATE,
.endpoint = 0x03,
.ep_attr = USB_ENDPOINT_XFER_ISOC,
.rates = SNDRV_PCM_RATE_48000,
.rate_min = 48000,
.rate_max = 48000,
.nr_rates = 1,
.rate_table = (unsigned int[]) {
48000
}
}
},
}
}
},
#undef USB_DEVICE_VENDOR_SPEC