Hi Sedat, >>>>> I have some problems using my BCM20702 adapter on my Debian/stretch >>>>> 9.0 AMD64 system with Linux v4.9.30 on a ThinkPad-T530 notebook. >>>>> >>>> >>>> can you run “btmon -w trace.log” and attach that log. I think that I know what is going on, but I want to confirm this. >>>> >>> >>> attached is a 2nd hcidump and the requested trace.log. >> >> so here is the problem: >> >> < HCI Command: Set Event Mask Page 2 (0x03|0x0063) plen 8 >> Mask: 0x0000000000000000 >>> HCI Event: Command Complete (0x0e) plen 4 >> Set Event Mask Page 2 (0x03|0x0063) ncmd 1 >> Status: Unknown HCI Command (0x01) >> >> This controller just does not support this command. Problem is that earlier it told us it did. >> >> < HCI Command: Read Local Supported Commands (0x04|0x0002) plen 0 >>> HCI Event: Command Complete (0x0e) plen 68 >> Read Local Supported Commands (0x04|0x0002) ncmd 1 >> Status: Success (0x00) >> Commands: 162 entries >> ... >> Set Event Mask Page 2 (Octet 22 - Bit 2) >> ... >> >> Can you provide the output of /sys/kernel/debug/usb/devices that relates to this USB dongle. >> >> I posted a RFC patch that you might want to try. If that works, I just need to include a proper commit message. If it works, please send also the btmon -w trace.log for success part. >> > > Hi Marcel, > > [ /sys/kernel/debug/usb/devices ] > > T: Bus=01 Lev=02 Prnt=02 Port=03 Cnt=03 Dev#= 9 Spd=12 MxCh= 0 > D: Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 > P: Vendor=0a5c ProdID=21e6 Rev= 1.12 > S: Manufacturer=Broadcom Corp > S: Product=BCM20702A0 > S: SerialNumber=F82FA8E8CFC0 > C:* #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr= 0mA > I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb > E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms > E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms > E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms > I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb > E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms > E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms > I: If#= 1 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb > E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms > E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms > I: If#= 1 Alt= 2 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb > E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms > E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms > I: If#= 1 Alt= 3 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb > E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms > E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms > I: If#= 1 Alt= 4 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb > E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms > E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms > I: If#= 1 Alt= 5 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb > E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms > E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms > I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=btusb > E: Ad=84(I) Atr=02(Bulk) MxPS= 32 Ivl=0ms > E: Ad=04(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms > I:* If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none) > > Can you point me to your RFC patch? I send it to the mailing list already. 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