Re: Generic VESA framebuffer driver and Video card BOOT?
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From: Gerd Knorr <hidden>
Date: 2004-10-18 12:20:32
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On Mon, Oct 18, 2004 at 01:39:29PM +0200, Martin Waitz wrote:
hi :)quoted
Whenever writing to the gfx memory before finishing the initialization is harmless or not probably depends on the hardware, I'd better not count on it ...when the application tries to access the framebuffer memory then the driver is asked to map the corresponding page.
On first access only, and even that only if the driver doesn't map the pages at mmap() time already. Not a single fb driver seems to map the pages lazy today, grepping in drivers/video for nopage handles shows nothing. I'm not sure you can actually do that for iomem mappings. Gerd -- return -ENOSIG; ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl