I'm trying to create a configfs based multi function gadget using the most minimal configs for uac2 and other devices, but I'm finding very few combinations that work. Was looking for some suggestions on how to debug, or what information to gather to make it work. I've included some of the combinations and results below: Working combinations: uac2 by itself uac2 + mass_storage uac2 + hid Non-working combinations: no host errors, device shows up in /proc/sound/acards, but not in pulse audio: uac2 + mass_storage + hid uac2 + midi If I load uac2 w/ acm, rndis or ecm: Host error: Interface #0 referenced by multiple IADs, Interface #1 referenced by multiple IADs If Loaded with 3 or more functions: Host error: Audio class v2 interfaces need an interface association uac2 + hid + acm uac2 + hid + rndis uac2 + hid + midi # also Interface #0+1 referenced by multiple IADs uac2 + acm + midi # also Interface #0+1 referenced by multiple IADs uac2 + acm + rdnis # also Interface #0+1+2 referenced by multiple IADs uac2 + acm + mass_storage # also Interface #0+1+2 referenced by multiple IADs -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
