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Subject:
Re: Running document -- RTEMS framebuffer interface specification (fwd)
From: "Frank W. Miller" ####@####.#### Date: 4 Feb 2000 16:43:42 -0000 Message-Id: <200002041531.KAA02713@macalpine.cornfed.com> > I have put something together as a starting point for the design of > "framebuffer" interface > for RTEMS. > Hi Ros, This is a great idea. I've been working furiously to get the Roadrunner/pk system to the point where I can start porting Microwindows. If you don't mind, I'd like to contribute to this document with an eye towards helping make whatever interfaces emerge easily incorporatable into this system as well. Any thoughts on that? The current device driver interface for Roadrunner/pk is available in the code snapshot at www.cornfed.com. The file in the distribution is roadrunner/include/dev.h FM -- Frank W. Miller Cornfed Systems Inc www.cornfed.com | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject:
Re: Running document -- RTEMS framebuffer interface specification (fwd)
From: "Greg Haerr" ####@####.#### Date: 4 Feb 2000 17:45:56 -0000 Message-Id: <022d01bf6f36$198f44c0$15320cd0@gregh> : This is a great idea. I've been working furiously to get the Roadrunner/pk : system to the point where I can start porting Microwindows. If you don't : mind, I'd like to contribute to this document with an eye towards helping : make whatever interfaces emerge easily incorporatable into this system : as well. Any thoughts on that? The current device driver interface for : Roadrunner/pk is available in the code snapshot at www.cornfed.com. : The file in the distribution is roadrunner/include/dev.h Yes. Perhaps the answer to RTEMS is to get a single, simple framebuffer interface defined, and have well-defined entry points into separate chipset specific .c files elsewhere. This is what Linux first tried to do I think, but the console code ended up being wound into each of the chipset drivers, and now, it's huge and too complicated. Having the chipset specific stuff in separate files, and NOT having anything to do with the console structures would be great, since the code could be reused for PK, or, for Microwindows in "bare hardware" mode. Greg | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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