nanogui@linuxhacker.org

nanogui@linuxhacker.org


Subject: Re: Technical Framebuffer proposal for RTEMS graphics
From: Rosimildo daSilva
Date: Sat, 5 Feb 2000 11:38:51 -0800

"Greg Haerr" wrote:
 > : A small difference is how the access to the driver is made. 
 > : In your proposal, many ioctls() calls to do different things. 
 > : 
 > : The one that I proposed the driver would provide
 > : a table with the entry points for the services provided
 > : by the driver.
 > : 
 > The addresses returned by the kernel aren't valid for
 > user mode routines to call directly in RTEMS, right?

It runs in protected mode as a single flat address space.
No difference user/kernel modes. Basically, you can
access anything. This might change later... :-).

ioctls seems to fit better.

 > They certainly aren't in Linux.  That's why I suggest
 > ioctl.



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