Re: Kvaser USB CAN II support in Linux Kernel

Re: Kvaser USB CAN II support in Linux Kernel

[Olivier Sobrie]

Hi Jeremy,

On Mon, Aug 25, 2014 at 02:27:15PM -0700, Jeremy Conners wrote:
> Hello gentlemen,
> 
> I've been working on a project recently with an embedded linux device that
> needs to interface with a J1939/N2K bus.  For initial bring-up, I'm using a
> Kvaser USB CAN II device.  I recently found this thread (http://
> comments.gmane.org/gmane.network.socketcan.user/1445) that was very helpful to
> get the kernel to recognize the device and properly create the can0/1 devices.
>  Where can I join the discussion/mailing list as it seems to have been shutdown
> or moved recently?  I also may be able to help contribute to the discussion and
> /or help with additional work on this driver as I have a vested interest in
> getting this all running.

The linux-can mailing list (linux-can@vger.kernel.org) is the right place
to discuss such things.

Concerning the support for your device, as Pierre stated in the thread,
there are two families of Kvaser devices: "leaf" and "usbII".
Currently only the "leaf" family is supported by the driver in the kernel.
Pierre did a copy of kvaser_usb.c and adapted it to make it work with work
_only_ "usbII" devices. He sent the adapted driver as an attachment
(kvaser_usb2.c).

If you compare the two drivers (kvaser_usb2.c and kvaser_usb.c), you will
see that there are not a lot of differences between the two. I think
the best would be to adapt kvaser_usb.c to support both "leaf" and "usbII"
devices.
I've one such device at home but I have not had the time yet to have a look
at this... So if you want to adapt the driver, you're welcome :-)

Kind regards,

-- 
Olivier