On 10/04/2013 04:33 PM, Greg Kroah-Hartman wrote:
> 
> Ideally I thought this would be just like "firmware", you dump the file
> to the FPGA, it validates it and away you go with a new image running in
> the chip.
> 
> But, it sounds like this is much more complicated, so much so that
> configfs might be the correct interface for it, as you can do lots of
> things there, and it is very flexible (some say too flexible...)
> 
> A char device, with a zillion different custom ioctls is also a way to
> do it, but one that I really want to avoid as that gets messy really
> quickly.
> 

I'm not sure that a zillion custom ioctls are necessary, but I think we
really need to get a better understanding of the various usage cases
(and there are going to be ones where an "FPGA driver" simply makes no
sense at all.)

	-hpa