[PATCH 3/4] ALSA: usb-audio: add Roland QUAD-CAPTURE multirate support

From: Jonathan Seth Mainguy

Date: Fri Aug 28 2026 - 20:51:18 EST


The QUAD-CAPTURE provides alternate settings for 44.1, 48, 96 and
192 kHz. Its fixed quirk currently describes only 44.1 kHz.

Add the remaining playback and capture settings. The device provides
four playback and six capture channels through 96 kHz, and two channels
in each direction at 192 kHz. Each setting uses an S32_LE container.

Tested on a physical QUAD-CAPTURE with full-duplex streams at 44.1,
48, 96 and 192 kHz.

Signed-off-by: Jonathan Seth Mainguy <jon@xxxxxx>
---
sound/usb/quirks-table.h | 98 +++++++++++++++++++++++++++++++++++++++-
1 file changed, 97 insertions(+), 1 deletion(-)

diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 35eef9cf834b..a1a33f11de4a 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -1374,7 +1374,7 @@ YAMAHA_DEVICE(0x7010, "UB99"),
}
},
{
- /* only 44.1 kHz works at the moment */
+ /* S32_LE; altsettings 1-4 match the device clock. */
USB_DEVICE(0x0582, 0x012f),
QUIRK_DRIVER_INFO {
/* .vendor_name = "Roland", */
@@ -1396,6 +1396,54 @@ YAMAHA_DEVICE(0x7010, "UB99"),
.rate_table = (unsigned int[]) { 44100 }
}
},
+ {
+ QUIRK_DATA_AUDIOFORMAT(0) {
+ .formats = SNDRV_PCM_FMTBIT_S32_LE,
+ .channels = 4,
+ .iface = 0,
+ .altsetting = 2,
+ .altset_idx = 2,
+ .endpoint = 0x05,
+ .ep_attr = 0x05,
+ .rates = SNDRV_PCM_RATE_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .nr_rates = 1,
+ .rate_table = (unsigned int[]) { 48000 }
+ }
+ },
+ {
+ QUIRK_DATA_AUDIOFORMAT(0) {
+ .formats = SNDRV_PCM_FMTBIT_S32_LE,
+ .channels = 4,
+ .iface = 0,
+ .altsetting = 3,
+ .altset_idx = 3,
+ .endpoint = 0x05,
+ .ep_attr = 0x05,
+ .rates = SNDRV_PCM_RATE_96000,
+ .rate_min = 96000,
+ .rate_max = 96000,
+ .nr_rates = 1,
+ .rate_table = (unsigned int[]) { 96000 }
+ }
+ },
+ {
+ QUIRK_DATA_AUDIOFORMAT(0) {
+ .formats = SNDRV_PCM_FMTBIT_S32_LE,
+ .channels = 2,
+ .iface = 0,
+ .altsetting = 4,
+ .altset_idx = 4,
+ .endpoint = 0x05,
+ .ep_attr = 0x05,
+ .rates = SNDRV_PCM_RATE_192000,
+ .rate_min = 192000,
+ .rate_max = 192000,
+ .nr_rates = 1,
+ .rate_table = (unsigned int[]) { 192000 }
+ }
+ },
{
QUIRK_DATA_AUDIOFORMAT(1) {
.formats = SNDRV_PCM_FMTBIT_S32_LE,
@@ -1412,6 +1460,54 @@ YAMAHA_DEVICE(0x7010, "UB99"),
.rate_table = (unsigned int[]) { 44100 }
}
},
+ {
+ QUIRK_DATA_AUDIOFORMAT(1) {
+ .formats = SNDRV_PCM_FMTBIT_S32_LE,
+ .channels = 6,
+ .iface = 1,
+ .altsetting = 2,
+ .altset_idx = 2,
+ .endpoint = 0x85,
+ .ep_attr = 0x25,
+ .rates = SNDRV_PCM_RATE_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .nr_rates = 1,
+ .rate_table = (unsigned int[]) { 48000 }
+ }
+ },
+ {
+ QUIRK_DATA_AUDIOFORMAT(1) {
+ .formats = SNDRV_PCM_FMTBIT_S32_LE,
+ .channels = 6,
+ .iface = 1,
+ .altsetting = 3,
+ .altset_idx = 3,
+ .endpoint = 0x85,
+ .ep_attr = 0x25,
+ .rates = SNDRV_PCM_RATE_96000,
+ .rate_min = 96000,
+ .rate_max = 96000,
+ .nr_rates = 1,
+ .rate_table = (unsigned int[]) { 96000 }
+ }
+ },
+ {
+ QUIRK_DATA_AUDIOFORMAT(1) {
+ .formats = SNDRV_PCM_FMTBIT_S32_LE,
+ .channels = 2,
+ .iface = 1,
+ .altsetting = 4,
+ .altset_idx = 4,
+ .endpoint = 0x85,
+ .ep_attr = 0x25,
+ .rates = SNDRV_PCM_RATE_192000,
+ .rate_min = 192000,
+ .rate_max = 192000,
+ .nr_rates = 1,
+ .rate_table = (unsigned int[]) { 192000 }
+ }
+ },
{
QUIRK_DATA_MIDI_FIXED_ENDPOINT(2) {
.out_cables = 0x0001,
--
2.55.0