vcan OpenWRT

vcan OpenWRT

[Sergio Alberto Valdivia]

Hi my name is Sergio, I’m trying to use can-utils in an Onion Omega 2 pro, which runs OpenWRT. 

I have already installed the can-utils packages, but when I try to create a virtual CAN interface I get the following error: failed to find a module named vcan. 

Hope you could help me solve this ussue. Regards,

Sergio A. Valdivia

Re: vcan OpenWRT

[Jeroen Hofstee]

Hello Sergio,

On 7/12/22 17:41, Sergio Alberto Valdivia wrote:
> Hi my name is Sergio, I’m trying to use can-utils in an Onion Omega 2 pro, which runs OpenWRT.
>
> I have already installed the can-utils packages, but when I try to create a virtual CAN interface I get the following error: failed to find a module named vcan.
>
You should ask the OpenWRT folks to build the module and make it 
available or build
it yourself.

Regards,

Jeroen

Re: vcan OpenWRT

[Oliver Hartkopp]

Hi Sergio,

On 12.07.22 17:41, Sergio Alberto Valdivia wrote:
> Hi my name is Sergio, I’m trying to use can-utils in an Onion Omega 2 pro, which runs OpenWRT.
> 
> I have already installed the can-utils packages, but when I try to create a virtual CAN interface I get the following error: failed to find a module named vcan.

You need to install the vcan kernel module first.

E.g. on OpenWrt 21.02.3 it looks like this:

# opkg update

# opkg list | grep vcan
kmod-can-vcan - 5.4.188-1 - Similar to the network loopback devices, 
vcan offers a virtual local CAN interface.

# opkg install kmod-can-vcan
Installing kmod-can-vcan (5.4.188-1) to root...
Downloading 
https://downloads.openwrt.org/releases/21.02.3/targets/ath79/generic/packages/kmod-can-vcan_5.4.188-1_mips_24kc.ipk
Installing kmod-can (5.4.188-1) to root...
Downloading 
https://downloads.openwrt.org/releases/21.02.3/targets/ath79/generic/packages/kmod-can_5.4.188-1_mips_24kc.ipk
Configuring kmod-can.
Configuring kmod-can-vcan.

# lsmod | grep vcan
vcan                    2192  0

There we are ;-)

# ip link add type vcan

Then you can see vcan0 in

# cat /proc/net/dev

Best regards,
Oliver

Re: vcan OpenWRT

[Oliver Hartkopp]

On 12.07.22 23:18, Sergio Alberto Valdivia wrote:
> Thank you very much, I guess I have a previous version of OpenWRT because it can’t find the vcan module.

OpenWrt 21.02.3 is the latest stable version.
You should upgrade your system to stay secure!

Have fun!
Oliver

> 
> Sergio A. Valdivia
> 
>> El 12 jul 2022, a la(s) 3:30 p.m., Oliver Hartkopp <socketcan@hartkopp.net> escribió:
>>
>> Hi Sergio,
>>
>>> On 12.07.22 17:41, Sergio Alberto Valdivia wrote:
>>> Hi my name is Sergio, I’m trying to use can-utils in an Onion Omega 2 pro, which runs OpenWRT.
>>> I have already installed the can-utils packages, but when I try to create a virtual CAN interface I get the following error: failed to find a module named vcan.
>>
>> You need to install the vcan kernel module first.
>>
>> E.g. on OpenWrt 21.02.3 it looks like this:
>>
>> # opkg update
>>
>> # opkg list | grep vcan
>> kmod-can-vcan - 5.4.188-1 - Similar to the network loopback devices, vcan offers a virtual local CAN interface.
>>
>> # opkg install kmod-can-vcan
>> Installing kmod-can-vcan (5.4.188-1) to root...
>> Downloading https://downloads.openwrt.org/releases/21.02.3/targets/ath79/generic/packages/kmod-can-vcan_5.4.188-1_mips_24kc.ipk
>> Installing kmod-can (5.4.188-1) to root...
>> Downloading https://downloads.openwrt.org/releases/21.02.3/targets/ath79/generic/packages/kmod-can_5.4.188-1_mips_24kc.ipk
>> Configuring kmod-can.
>> Configuring kmod-can-vcan.
>>
>> # lsmod | grep vcan
>> vcan                    2192  0
>>
>> There we are ;-)
>>
>> # ip link add type vcan
>>
>> Then you can see vcan0 in
>>
>> # cat /proc/net/dev
>>
>> Best regards,
>> Oliver