UIO Devices and user processes

[Greg KH]

On Tue, Oct 06, 2015 at 09:26:23AM -0400, Kenneth Adam Miller wrote:
> No, I didn't try it. I just wanted to ask before I got started. Thanks that
> answers everything.
> 
> Any body know about the issue of assigning a process a region of physical
> memory to use for it's malloc and free? I'd like to just have the process call
> through to a UIO driver with an ioctl, and then once that's done it gets all
> it's memory from a specific region.

UIO drivers do not support ioctl, why would you need/want that?  What's
wrong with just using the correct mmap/munmap logic that UIO userspace
drivers use today?

thanks,

greg k-h