Hi Daniel, > Realtek ship a variety of bluetooth USB devices that identify > themselves with standard USB Bluetooth device class values, but > require a special driver to actually work. Without that driver, > you never get any scan results. > > More recently however, Realtek appear to have wisened up and simply > posted a firmware update that makes these devices comply with > normal btusb protocols. The firmware needs to be uploaded on each boot. > > Based on Realtek code from https://github.com/lwfinger/rtl8723au_bt > ('new' branch). > > This enables bluetooth support in the Gigabyte Brix GB-BXBT-2807 which > has this RTL8723BE USB device: > > T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#= 3 Spd=12 MxCh= 0 > D: Ver= 2.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 > P: Vendor=13d3 ProdID=3410 Rev= 2.00 > S: Manufacturer=Realtek > S: Product=Bluetooth Radio > S: SerialNumber=00e04c000001 > C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA > I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb > E: Ad=81(I) Atr=03(Int.) MxPS= 16 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=03(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=03(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=03(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=03(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=03(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=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms > E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms > > There is no change to the USB descriptor after firmware update, > however the version read by HCI_OP_READ_LOCAL_VERSION changes from > 0x8723 to 0x3083. > > This has also been tested on RTL8723AE and RTL8821AE. Support for > RTL8761A has also been added, but that is untested. > > Signed-off-by: Daniel Drake <drake@xxxxxxxxxxxx> > Tested-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx> > --- > drivers/bluetooth/btusb.c | 399 ++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 399 insertions(+) patch has been applied to bluetooth-next tree. Regards Marcel -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
