From: Marcus Sundberg <mackan@stacken.kth.se>
  To  : ggi-develop@eskimo.com
  Date: Fri, 05 Mar 1999 00:19:14 +0100

Re: /dev/fb root - why ?

James Simmons wrote:
> 
> > > > > You need root permissions to use the framebuffer devices.
> > > > No you don't! Where did you get that idea?
> > > By default when /dev/fb is created. You can change that but thats not
> > > recommended. This was discussed the kernel list the other day.
> 
> > I am not aware of. Note, that I consider the users in the graphics group
> > as remotely "trusted" with respect to not purposefully setting illegal
> > modes and such.
> 
> That very reason as well as teh issue of mmaped MMIO for some of the
> drivers. Take the matroxfb. It mmap all of the MMIO registers. All of
> them.

It does? Gotta check that out! If the registers can be mapped to
userspace I'll hack up a userspace acceleration module for the fbdev
target.

//Marcus
-- 
-------------------------------+------------------------------------
        Marcus Sundberg        | http://www.stacken.kth.se/~mackan
 Royal Institute of Technology |       Phone: +46 707 295404
       Stockholm, Sweden       |   E-Mail: mackan@stacken.kth.se