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Commit b99b799e authored by Erik Veijola's avatar Erik Veijola Committed by Greg Kroah-Hartman
Browse files

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



commit 240a8af929c7c57dcde28682725b29cf8474e8e5 upstream.

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: default avatarErik Veijola <erik.veijola@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 2c4b1740

sound/usb/quirks-table.h

+47 −0
Original line number Diff line number Diff line
@@ -3312,4 +3312,51 @@ 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