Hi Group,
My earlier issue of getting 0x12 error got solved after upgrading
my kernel version to "5.11.13-051113-generic" on my ubuntu laptop, but
bt0 doesn't seem to be established. unable to figure out what could
be the issue here.
Following are the commands i have run with no errors (even no logs in dmesg)
#modprobe bluetooth_6lowpan
#echo 1 > /sys/kernel/debug/bluetooth/6lowpan_enable
#echo "connect RPi4B_BD_Address 1 " >
/sys/kernel/debug/bluetooth/6lowpan_control
but bt0 is not created when checked ifconfig -a
btmon log is as below:
"
< HCI Command: Unknown (0x08|0x0041) plen 8
[hci0] 143.040756
00 01 01 00 60 00 60 00 ....`.`.
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 143.155668
Unknown (0x08|0x0041) ncmd 1
Status: Success (0x00)
< HCI Command: Unknown (0x08|0x0042) plen 6
[hci0] 143.155720
01 01 00 00 00 00 ......
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 143.157661
Unknown (0x08|0x0042) ncmd 2
Status: Success (0x00)
< HCI Command: Unknown (0x08|0x0042) plen 6
[hci0] 183.177988
00 00 00 00 00 00 ......
> HCI Event: Command Complete (0x0e) plen 4 [hci0] 183.345709
Unknown (0x08|0x0042) ncmd 2
Status: Success (0x00)
"
On Mon, Apr 12, 2021 at 4:41 PM nagesh shamnur <nagesh.shamnur@xxxxxxxxx> wrote:
>
> Hi Group,
> I am trying to establish a 6LowPAN over BLE connection between my
> Ubuntu Laptop and Raspberry Pi 4B. Laptop is running Ubuntu
> 5.8.0-48-generic #54~20.04.1-Ubuntu and my RPi is running custom
> yocto-based Linux distro with kernel version 5.4.x version.
>
> I am facing an error of 0x12 when trying to establish to Rpi from the
> laptop as below:
>
> root@root1-Nitro-AN515-55:/home/root1# lsmod | grep 6low
> bluetooth_6lowpan 28672 0
> 6lowpan 40960 8
> nhc_fragment,nhc_dest,nhc_ipv6,bluetooth_6lowpan,nhc_hop,nhc_udp,nhc_mobility,nhc_routing
> bluetooth 581632 31
> btrtl,bluetooth_6lowpan,btintel,btbcm,bnep,btusb
> root@root1-Nitro-AN515-55:/home/root1# echo 1 >
> /sys/kernel/debug/bluetooth/6lowpan_enable
> root@root1-Nitro-AN515-55:/home/root1# dmesg
> root@root1-Nitro-AN515-55:/home/root1# echo "connect DC:A6:32:F2:CB:46
> 1" > /sys/kernel/debug/bluetooth/6lowpan_control runn
> root@root1-Nitro-AN515-55:/home/root1# dmesg
> [239155.542994] Bluetooth: hci0: request failed to create LE
> connection: status 0x12
>
> Running btmon in another shell resulted in the following log as attached.
>
> Additional Info: using bluetoothctl between my Laptop and RPi s
> successful but 6LowPAN is unable to go through.
>
> Any missing from my end?
>
> Thanks,
> Nagesh.
