On Llu, 2004-05-10 at 12:46, Egbert Eich wrote: > Yes, we will most likely need OS dependent non-chipset specific wrappers, > but those are cheap to do - a lot cheaper than code dealing directly > with chipset quirks.
Well the minimal kernel side stuff required to make hot plug work is going to be - Use the kernel to do PCI stuff (esp VGA_EN !) - Map PCI objects (video ram, registers, etc) from files that allow the kernel to know what PCI device is in use - Handle the device vanishing rudely (ie polls for busy need to time out etc) With frame buffers the ability to switch mode cleanly is helpful because of two things - SAK (Secure Attention Key) - need to get back to a sane mode (Can be mostly done in user space) - Panic/Crash cases Clean context switching also makes VT switch a lot neater AGP/3D obviously adds a ton more, but if you were simply wanting to get hotplug friendly X working with a generic old 2D card very little is needed kernel side ------------------------------------------------------- This SF.Net email is sponsored by Sleepycat Software Learn developer strategies Cisco, Motorola, Ericsson & Lucent use to deliver higher performing products faster, at low TCO. http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3 -- _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
