MPC5200B and the CAN interface

MPC5200B and the CAN interface

[Nick]

Hi Everyone,

I am looking for information on how to use the CAN driver for the MPC5200b.  I have built the kernel (2.6.27) with the MPC5200b can bus drivers and I see them being initialized on start up.

[   37.122041] can: controller area network core (rev 20071116 abi 8)
[   37.128687] NET: Registered protocol family 29
[   37.133379] can: raw protocol (rev 20071116)
[   37.137807] can: broadcast manager protocol (rev 20080415)

Do I have to define a UDEV rule?  Has anyone already written a rule to make the can driver visible in /dev?

Any pointers or snippets of code would be greatly appreciated.

Nick

Re: MPC5200B and the CAN interface

[Gary Thomas]

Nick wrote:
> Hi Everyone,
> 
> I am looking for information on how to use the CAN driver for the MPC5200b.  I have built the kernel (2.6.27) with the MPC5200b can bus drivers and I see them being initialized on start up.
> 
> [   37.122041] can: controller area network core (rev 20071116 abi 8)
> [   37.128687] NET: Registered protocol family 29
> [   37.133379] can: raw protocol (rev 20071116)
> [   37.137807] can: broadcast manager protocol (rev 20080415)

I'm pretty sure this is just the SocketCAN interface.

You still need a hardware driver (and one which is SocketCAN compatible).
I don't see such a driver for the MSCAN (the hardware on the MPC5200) in
the stock 2.6.27 tree.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: MPC5200B and the CAN interface

[Robert Schwebel]

On Sat, Nov 08, 2008 at 05:32:35AM -0700, Gary Thomas wrote:
> I'm pretty sure this is just the SocketCAN interface.
> 
> You still need a hardware driver (and one which is SocketCAN compatible).
> I don't see such a driver for the MSCAN (the hardware on the MPC5200) in
> the stock 2.6.27 tree.

The drivers for MPC5200B's mscan are still in the SocketCAN repository,
right. The team is working on getting the patches ready for mainline.

rsc
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