Re: How to get USB bluetooth device supported?

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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
> 
> 



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