On Fri, Jan 14, 2011 at 1:40 AM, Greg KH <greg@kroah.com> wrote:

On Fri, Jan 14, 2011 at 12:42:52AM +0800, cheng chen wrote:
> Hi all,
> I am working on vehicle body control system with can-bus as my BE final
> project.
> It contains three parts.
>
> 1.CAN chip driver
> 2.CAN-bus protocol stack
> 3.UI
>
> The problem is that I already have written the CAN chip driver as a
> character device driver using IO-simulated SPI.

Oops, don't do that.

> So with this character driver API open() read() write() ioctl(), I start to
> wonder where can I put my protocol stack?

Use the in-kernel CAN protocol stack, that is much easier.

> Or should rewrite the driver in network device frameworks?

Yes.

thanks,

greg k-h

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