Commit 34fe4a9d authored by Abhinav Mahadevan's avatar Abhinav Mahadevan Committed by Takashi Iwai
Browse files

ALSA: usb-audio: Add quirk for PreSonus AudioBox USB 



The PreSonus AudioBox USB (0x194f:0x0301) only supports S24_3LE
format for both playback and capture. It does not support S16_LE
despite being a USB full-speed device. Add explicit format quirks
for both the playback (interface 2) and capture (interface 3)
interfaces to ensure correct format negotiation.

Signed-off-by: default avatarAbhinav Mahadevan <abhi220204@gmail.com>
Link: https://patch.msgid.link/20260410143335.5974-1-abhi220204@gmail.com


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent b7feba84

sound/usb/quirks-table.h

+48 −0
Original line number Diff line number Diff line
@@ -2652,6 +2652,54 @@ YAMAHA_DEVICE(0x7010, "UB99"), 
		}

	}

},

{

	/*

	 * The AudioBox USB advertises S24_3LE as the only supported format

	 * for both playback and capture. It does not support S16_LE despite

	 * being a USB full-speed device.

	 */

	USB_DEVICE(0x194f, 0x0301),

	QUIRK_DRIVER_INFO {

		.vendor_name = "PreSonus",

		.product_name = "AudioBox USB",

		QUIRK_DATA_COMPOSITE {

			{ QUIRK_DATA_IGNORE(0) },

			{

				QUIRK_DATA_AUDIOFORMAT(2) {

					.formats = SNDRV_PCM_FMTBIT_S24_3LE,

					.channels = 2,

					.iface = 2,

					.altsetting = 1,

					.altset_idx = 1,

					.attributes = 0,

					.endpoint = 0x01,

					.ep_attr = USB_ENDPOINT_XFER_ISOC,

					.rates = SNDRV_PCM_RATE_44100 |

						 SNDRV_PCM_RATE_48000,

					.rate_min = 44100,

					.rate_max = 48000,

				}

			},

			{

				QUIRK_DATA_AUDIOFORMAT(3) {

					.formats = SNDRV_PCM_FMTBIT_S24_3LE,

					.channels = 2,

					.iface = 3,

					.altsetting = 1,

					.altset_idx = 1,

					.attributes = 0,

					.endpoint = 0x82,

					.ep_attr = USB_ENDPOINT_XFER_ISOC,

					.rates = SNDRV_PCM_RATE_44100 |

						 SNDRV_PCM_RATE_48000,

					.rate_min = 44100,

					.rate_max = 48000,

				}

			},

			QUIRK_COMPOSITE_END

		}

	}

},

#endif /* disabled */



{