Here's the patch proposed to be included in the next kernel release. Thanks for the support from all of you! I removed the Rubix22, Rubix24, and Rubix44 from it, since I found a blog post about the Rubix44 working with Linux already: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwiY1_zzxYHwAhUJTawKHU7wAyMQ7gEwBnoECAIQBw&url=https%3A%2F%2Ftranslate.google.com%2Ftranslate%3Fhl%3Den%26sl%3Dcs%26u%3Dhttps%3A%2F%2Fblog.frantovo.cz%2Fc%2F365%2FRoland%252520Rubix44%252520%2525E2%252580%252593%252520extern%2525C3%2525AD%252520zvukov%2525C3%2525A1%252520karta%26prev%3Dsearch%26pto%3Daue&usg=AOvVaw2H_Kumf2nAZW6pojLLtyZY I also took Takashi Iwai's suggestion that a "Synch Type" of "Asynchronous" for both the "In" and the "Out" Endpoints probably means we should use IMPLICIT_FB_BOTH_DEV (and IMPLICIT_FB_FIXED_DEV otherwise) and edited it again with the help of "lsusb -v" results around the Internet. Here are the conclusions I came to with what I could find through google, but the unavailable (unlisted) others, I'm leaving IMPLICIT_FB_FIXED_DEV to be safe. These should all be certain (so are my devices but I didn't relist them here): 0582:0109 both 0582:0111 both 0582:0114 fixed 0582:0127 both 0582:012b fixed 0582:012f both 0582:0137 fixed 0582:0138 both 0582:014d both 0582:0159 fixed 0582:017c both 0582:01b5 both 0582:01fd both Hopefully, after this is in the kernel, people will notice if they have noise through playback, because it takes headphones for me. Of course anybody showing "lsusb -v" for their device should be able to discern the need for IMPLICIT_FB_BOTH_DEV too. Thanks Takashi! Here's the patch for inclusion in mainline 5.13: diff -Nurp linux-5.11.9.orig-2021-04-13/sound/usb/implicit.c linux-5.11.9.roland1/sound/usb/implicit.c --- linux-5.11.9.orig-2021-04-13/sound/usb/implicit.c 2021-04-13 14:23:34.743782890 -0500 +++ linux-5.11.9.roland1/sound/usb/implicit.c 2021-04-15 19:35:20.053444538 -0500 @@ -79,13 +79,72 @@ static const struct snd_usb_implicit_fb_ /* Implicit feedback quirk table for capture: only FIXED type */ static const struct snd_usb_implicit_fb_match capture_implicit_fb_quirks[] = { + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00a6, 0x0d, 0x01), /* Roland JUNO-G */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00a9, 0x0d, 0x01), /* Roland MC-808 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00ad, 0x0d, 0x01), /* Roland SH-201 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00b2, 0x0d, 0x01), /* Roland VG-99 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00b3, 0x0d, 0x01), /* Roland VG-99 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00c2, 0x0d, 0x01), /* Roland SonicCell */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00c4, 0x0d, 0x01), /* Edirol M-16DX */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00c5, 0x0d, 0x01), /* Roland SP-555 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00c7, 0x0d, 0x01), /* Roland V-Synth GT */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00d1, 0x0d, 0x01), /* Roland Music Atelier */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00da, 0x0d, 0x01), /* BOSS GT-10 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00db, 0x0d, 0x01), /* BOSS GT-10 Guitar Effects Processor */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00dc, 0x0d, 0x01), /* BOSS GT-10B */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00de, 0x0d, 0x01), /* Roland Fantom-G */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00eb, 0x0d, 0x01), /* Roland VS-100 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00f8, 0x0d, 0x01), /* Roland JUNO Series */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00fc, 0x0d, 0x01), /* Roland VS-700C */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00fd, 0x0d, 0x01), /* Roland VS-700 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00fe, 0x0d, 0x01), /* Roland VS-700 M1 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x00ff, 0x0d, 0x01), /* Roland VS-700 M2 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0100, 0x0d, 0x01), /* Roland VS-700 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0101, 0x0d, 0x01), /* Roland VS-700 M2 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0102, 0x0d, 0x01), /* Roland VB-99 */ + IMPLICIT_FB_BOTH_DEV(0x0582, 0x0109, 0x0d, 0x01), /* BOSS eBand JS-8 */ + IMPLICIT_FB_BOTH_DEV(0x0582, 0x0111, 0x0d, 0x01), /* Roland GAIA SH-01 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0113, 0x0d, 0x01), /* BOSS ME-25 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0114, 0x0d, 0x01), /* Roland SD-50 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0117, 0x0d, 0x01), /* Roland VS-20 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0119, 0x0d, 0x01), /* Roland OCTAPAD SPD-30 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x011c, 0x0d, 0x01), /* Roland Lucina AX-09 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x011e, 0x0d, 0x01), /* BOSS BR-800 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0120, 0x0d, 0x01), /* Roland OCTA-CAPTURE */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0121, 0x0d, 0x01), /* Roland OCTA-CAPTURE */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0123, 0x0d, 0x01), /* Roland JUNO-Gi */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0124, 0x0d, 0x01), /* Roland M-300 */ + IMPLICIT_FB_BOTH_DEV(0x0582, 0x0127, 0x0d, 0x01), /* Roland GR-55 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x012b, 0x0d, 0x01), /* Roland DUO-CAPTURE */ + IMPLICIT_FB_BOTH_DEV(0x0582, 0x012f, 0x0d, 0x01), /* Roland QUAD-CAPTURE */ IMPLICIT_FB_BOTH_DEV(0x0582, 0x0130, 0x0d, 0x01), /* BOSS BR-80 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0132, 0x0d, 0x01), /* Roland TRI-CAPTURE */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0134, 0x0d, 0x01), /* Roland V-Mixer */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0137, 0x0d, 0x01), /* Roland DUO-CAPTURE Advanced Mode*/ + IMPLICIT_FB_BOTH_DEV(0x0582, 0x0138, 0x0d, 0x01), /* BOSS RC-300 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x013a, 0x0d, 0x01), /* Roland JUPITER-80 */ + IMPLICIT_FB_BOTH_DEV(0x0582, 0x013e, 0x0d, 0x01), /* Roland R-26 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0145, 0x0d, 0x01), /* Roland SPD-SX */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x014b, 0x0d, 0x01), /* BOSS eBand JS-10 */ + IMPLICIT_FB_BOTH_DEV(0x0582, 0x014d, 0x0d, 0x01), /* BOSS GT-100 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0150, 0x0d, 0x01), /* Roland TD-15 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0151, 0x0d, 0x01), /* Roland TD-11 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0154, 0x0d, 0x01), /* Roland JUPITER-50 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0158, 0x0d, 0x01), /* Roland TD-30 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x0159, 0x0d, 0x01), /* Roland DUO-CAPTURE EX */ + IMPLICIT_FB_BOTH_DEV(0x0582, 0x015b, 0x0d, 0x01), /* Roland INTEGRA-7 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x015d, 0x0d, 0x01), /* Roland R-88 */ IMPLICIT_FB_BOTH_DEV(0x0582, 0x0171, 0x0d, 0x01), /* BOSS RC-505 */ + IMPLICIT_FB_FIXED_DEV(0x0582, 0x017a, 0x0d, 0x01), /* Roland VT-3 */ + IMPLICIT_FB_BOTH_DEV(0x0582, 0x017c, 0x0d, 0x01), /* Roland TR-8 */ IMPLICIT_FB_BOTH_DEV(0x0582, 0x0185, 0x0d, 0x01), /* BOSS GP-10 */ IMPLICIT_FB_BOTH_DEV(0x0582, 0x0189, 0x0d, 0x01), /* BOSS GT-100v2 */ + IMPLICIT_FB_BOTH_DEV(0x0582, 0x01b5, 0x0d, 0x01), /* Roland Boutique JP-08 */ IMPLICIT_FB_BOTH_DEV(0x0582, 0x01d6, 0x0d, 0x01), /* BOSS GT-1 */ IMPLICIT_FB_BOTH_DEV(0x0582, 0x01d8, 0x0d, 0x01), /* BOSS Katana */ IMPLICIT_FB_BOTH_DEV(0x0582, 0x01e5, 0x0d, 0x01), /* BOSS GT-001 */ + IMPLICIT_FB_BOTH_DEV(0x0582, 0x01fd, 0x0d, 0x01), /* Roland Boutique SH-01A */ + IMPLICIT_FB_BOTH_DEV(0x0582, 0x01ff, 0x0d, 0x01), /* Roland Boutique D-05 */ IMPLICIT_FB_BOTH_DEV(0x0582, 0x0203, 0x0d, 0x01), /* BOSS AD-10 */ {} /* terminator */
