Hey John, On Wed, 2003-02-19 at 01:33, John Ribera wrote: > I had rewritten one of the drivers once and studied it thoroughly. If I > remember correctly, from the device driver's view of memory, you can make > non-contiguous portions of physical memory appear as contiguous with VM. > When I read the book on the Linux Kernel (I was at 2.2 at the time) there > were 3 levels of indirection the kernel uses for MM to make this possible. > > Is this no longer true?
you mean paged memory where the actual physical memory pointer is an array of pointers to physically non-contiguous pages? That works for most chips (BT8x8 etc.), and it works for MJPEG capture on the Zoran chipset too. It just doesn't work for raw capture (this feature wasn't intended for raw capture anyway - it was only intended for overlay, and the framebuffer is always contiguous anyway, so from the zoran developer point of view, this isn't so weird). (All stated by previous zoran maintainers, I'm just assuming this to be true). Ronald -- Ronald Bultje <[EMAIL PROTECTED]> ------------------------------------------------------- This SF.net email is sponsored by: SlickEdit Inc. Develop an edge. The most comprehensive and flexible code editor you can use. Code faster. C/C++, C#, Java, HTML, XML, many more. FREE 30-Day Trial. www.slickedit.com/sourceforge _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
