[ALSA] usb-audio: fix Edirol UA-20 support

Modules: USB generic driver

Somebody at Edirol fucked up and released a new revision of the UA-20
without class-specific descriptors, so now we have to hard-code the
sample format.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>

1 files changed, 37 insertions, 3 deletions

diff --git a/sound/usb/usbquirks.h b/sound/usb/usbquirks.h
index 0e0575425797..6190ada00e38 100644
--- a/sound/usb/usbquirks.h
+++ b/sound/usb/usbquirks.h
@@ -665,16 +665,50 @@ YAMAHA_DEVICE(0x7010, "UB99"),
                 .type = QUIRK_COMPOSITE,
                 .data = (const struct snd_usb_audio_quirk[]) {
                         {
+                                .ifnum = 0,
+                                .type = QUIRK_IGNORE_INTERFACE
+                        },
+                        {
                                 .ifnum = 1,
-                                .type = QUIRK_AUDIO_STANDARD_INTERFACE
+                                .type = QUIRK_AUDIO_FIXED_ENDPOINT,
+                                .data = & (const struct audioformat) {
+                                        .format = SNDRV_PCM_FORMAT_S24_3LE,
+                                        .channels = 2,
+                                        .iface = 1,
+                                        .altsetting = 1,
+                                        .altset_idx = 1,
+                                        .attributes = 0,
+                                        .endpoint = 0x01,
+                                        .ep_attr = 0x01,
+                                        .rates = SNDRV_PCM_RATE_CONTINUOUS,
+                                        .rate_min = 44100,
+                                        .rate_max = 44100,
+                                }
                         },
                         {
                                 .ifnum = 2,
-                                .type = QUIRK_AUDIO_STANDARD_INTERFACE
+                                .type = QUIRK_AUDIO_FIXED_ENDPOINT,
+                                .data = & (const struct audioformat) {
+                                        .format = SNDRV_PCM_FORMAT_S24_3LE,
+                                        .channels = 2,
+                                        .iface = 2,
+                                        .altsetting = 1,
+                                        .altset_idx = 1,
+                                        .attributes = 0,
+                                        .endpoint = 0x82,
+                                        .ep_attr = 0x01,
+                                        .rates = SNDRV_PCM_RATE_CONTINUOUS,
+                                        .rate_min = 44100,
+                                        .rate_max = 44100,
+                                }
                         },
                         {
                                 .ifnum = 3,
-                                .type = QUIRK_MIDI_STANDARD_INTERFACE
+                                .type = QUIRK_MIDI_FIXED_ENDPOINT,
+                                .data = & (const struct snd_usb_midi_endpoint_info) {
+                                        .out_cables = 0x0001,
+                                        .in_cables  = 0x0001
+                                }
                         },
                         {
                                 .ifnum = -1