USB-Ethernet issue connecting to BBB (FBS-13.2) --> Laptop (Debian 12.1)

[Nicola Mingotti]

Hi, I have this issue, i installed a FreeBSD 13.2 in a BeagleBone Black and I am trying to connect to it via USB-Ethernet (this is a great thing, power and Ethernet on the same cable really rocks) from a Linux Debian 12.1 machine. Unfortunately it does not work. I suspect there is an issue in the CDC driver in FreeBSD because when i plug in the USB connector I see cryptic errors in Linux dmesg
. FBS side dmesg

cdce0 on uhub1
cdce0: <USB Ethernet Comm Interface> on usbus0
ue0: <USB Ethernet> on cdce0
ue0: Ethernet address: 2a:02:03:04:05:f9

. linux side dmesg

127709.920096] cdc_ether 1-4.2:1.0 usb0: register 'cdc_ether' at usb-0000:03:00.0-4.2, CDC Ethernet Device, 2a:02:03:04:05:06
[127709.942535] cdc_ether 1-4.2:1.0 enx2a0203040506: renamed from usb0
[127709.998357] cdc_ether 1-4.2:1.0 enx2a0203040506: CDC: unexpected notification e1!
[127710.002085] cdc_ether 1-4.2:1.0 enx2a0203040506: CDC: unexpected notification e1!

Have any of you successfully tried such a connection ? Connecting Linux -- Linux it works, i did it very very often. From my notes a few years old i see that I was able to connect FBS -- FBS. Probably it is the first time i am connecting FSB -- Linux.

 

[covacat]

it worked for me between a rpi zero and a mac. cant remember any details. iirc the sbc needs to be connected via an otg port and some usb template loaded via loader.conf but im not quite sure