2018-02-01 23:24:37

by Barry Byford

Subject: btvirt not working

Hello,

I am trying to get the adapter emulator working for BLE but I am
having some issues:

pi@RPi3:~/bluez/bluez-5.43 $ sudo ./emulator/btvirt -l2
Bluetooth emulator ver 5.43
Failed to open Virtual HCI device

If I select BR/ER only then it works:

pi@RPi3:~/bluez/bluez-5.43 $ sudo emulator/btvirt -B -l2
Bluetooth emulator ver 5.43

As in another terminal I can see the extra adapters:

pi@RPi3:~ $ bluetoothctl list
[NEW] Controller 00:AA:01:01:00:24 RPi3 #3 [default]
[NEW] Controller 00:AA:01:00:00:23 RPi3 #2
[NEW] Controller B8:27:EB:22:57:E0 RPi3

I have also tried with just LE only controller:

pi@RPi3:~/bluez/bluez-5.43 $ sudo emulator/btvirt -L -l2
Bluetooth emulator ver 5.43
Failed to open Virtual HCI device

The btmon trace for this is:

pi@RPi3:~ $ sudo btmon
Bluetooth monitor ver 5.43
= Note: Linux version 4.9.59-v7+ (armv7l)
0.220518
= Note: Bluetooth subsystem version 2.22
0.220527
= New Index: B8:27:EB:22:57:E0 (Primary,UART,hci0)
[hci0] 0.220531
= Open Index: B8:27:EB:22:57:E0
[hci0] 0.220533
= Index Info: B8:27:EB:22:57:E0 (Broadcom Corporation)
[hci0] 0.220535
@ MGMT Open: bluetoothd (privileged) version 1.14
{0x0001} 0.220539
@ MGMT Open: btmon (privileged) version 1.14
{0x0002} 0.220807
= New Index: 00:00:00:00:00:00 (Primary,Virtual,hci1)
[hci1] 6.103687
= Open Index: 00:00:00:00:00:00
[hci1] 6.103726
< HCI Command: Reset (0x03|0x0003) plen 0
[hci1] 6.103875
= Close Index: 00:00:00:00:00:00
[hci1] 16.676567
= Delete Index: 00:00:00:00:00:00
[hci1] 16.676627

Any suggestions as to what the issue might be?
Or what to try next?

Thanks,
Barry

2018-02-05 17:30:43

by Barry Byford

Subject: Re: btvirt not working

A little more investigating on this and the issue seems to be on the
Raspberry Pi 3 hardware.

Does anyone have any ideas as to why this is an issue on the RPi?

On 1 February 2018 at 23:24, Barry Byford <[email protected]> wrote:
> Hello,
>
> I am trying to get the adapter emulator working for BLE but I am
> having some issues:
>
> pi@RPi3:~/bluez/bluez-5.43 $ sudo ./emulator/btvirt -l2
> Bluetooth emulator ver 5.43
> Failed to open Virtual HCI device
>
> If I select BR/ER only then it works:
>
> pi@RPi3:~/bluez/bluez-5.43 $ sudo emulator/btvirt -B -l2
> Bluetooth emulator ver 5.43
>
> As in another terminal I can see the extra adapters:
>
> pi@RPi3:~ $ bluetoothctl list
> [NEW] Controller 00:AA:01:01:00:24 RPi3 #3 [default]
> [NEW] Controller 00:AA:01:00:00:23 RPi3 #2
> [NEW] Controller B8:27:EB:22:57:E0 RPi3
>
> I have also tried with just LE only controller:
>
> pi@RPi3:~/bluez/bluez-5.43 $ sudo emulator/btvirt -L -l2
> Bluetooth emulator ver 5.43
> Failed to open Virtual HCI device
>
> The btmon trace for this is:
>
> pi@RPi3:~ $ sudo btmon
> Bluetooth monitor ver 5.43
> = Note: Linux version 4.9.59-v7+ (armv7l)
> 0.220518
> = Note: Bluetooth subsystem version 2.22
> 0.220527
> = New Index: B8:27:EB:22:57:E0 (Primary,UART,hci0)
> [hci0] 0.220531
> = Open Index: B8:27:EB:22:57:E0
> [hci0] 0.220533
> = Index Info: B8:27:EB:22:57:E0 (Broadcom Corporation)
> [hci0] 0.220535
> @ MGMT Open: bluetoothd (privileged) version 1.14
> {0x0001} 0.220539
> @ MGMT Open: btmon (privileged) version 1.14
> {0x0002} 0.220807
> = New Index: 00:00:00:00:00:00 (Primary,Virtual,hci1)
> [hci1] 6.103687
> = Open Index: 00:00:00:00:00:00
> [hci1] 6.103726
> < HCI Command: Reset (0x03|0x0003) plen 0
> [hci1] 6.103875
> = Close Index: 00:00:00:00:00:00
> [hci1] 16.676567
> = Delete Index: 00:00:00:00:00:00
> [hci1] 16.676627
>
> Any suggestions as to what the issue might be?
> Or what to try next?
>
> Thanks,
> Barry