On Sat, Nov 19, 2022 at 11:37:51AM +0000, Andrew McNaughton wrote: > How does one go about getting a device that should work with btusb but doesn’t? It works fine with Microsoft generic bt drivers. You might try CC'ing the linux-bluetooth mailing list. They probably have a better idea of what's going on with the btusb driver than people on the linux-usb mailing list do. > I can see people adding new VID/PID’s to btusb but I don’t know if that’s all that’s needed here. It probably won't make any difference. Your excerpt from /sys/kernel/debug/usb/devices below shows that the btusb driver is already binding to the device. Alan Stern > This is for a Bluetooth 5.3 transceiver. There’s not a lot of these about yet but I think important for accessing newer/upcoming audio purposes. > > > From /sys/kernel/debug/usb/devices: > > T: Bus=02 Lev=02 Prnt=02 Port=01 Cnt=01 Dev#= 3 Spd=12 MxCh= 0 > D: Ver= 2.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 > P: Vendor=10d7 ProdID=b012 Rev=88.91 > S: Manufacturer=Actions > S: Product=general adapter > S: SerialNumber=ACTIONS1234 > C:* #Ifs= 2 Cfg#= 1 Atr=c0 MxPwr=100mA > I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb > E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=1ms > E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms > E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms > I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb > E: Ad=01(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms > E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms > I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb > E: Ad=01(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms > E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms > I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb > E: Ad=01(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms > E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms > I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb > E: Ad=01(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms > E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms > I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb > E: Ad=01(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms > E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms > I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb > E: Ad=01(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms > E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms > > > This is on Linux Kernel: 6.0.8-300.fc37.aarch64 > > > This needs to be added to the usb.ids (I’ve tried submitting to the update robot but I don’t know if that is still alive): > > 10d7 Actions Semiconductor Co., Ltd > b012 ATS2851 Bluetooth 5.3 Transceiver [Ugreen CM591] > > > > Thanks in advance. > -- > Andrew McNaughton > > email: andrewmcnaughton@xxxxxx > >