On Sun, Aug 23, 2009 at 09:10:17AM +0200, Patrick Georgi wrote: > Sorry I chime in so late. Do you need the hardware irq support to > prevent losing events? If so, the USB stack takes care of it: > The keyboard driver prepares a schedule of configurable length in > advance. By default, it's setup that this schedule is able to survive at > least 200 msecs, and that could be increased, so we won't need the > ~1msec resolution. And even if not, the USB HID only sends data every > 10msec, if I remember correctly.
The main thing would be to not lose events. If it can buffer enough events then this wouldn't be a problem. Does OHCI have the same ability to queue events? The secondary thing is keyboard repeat. As I understand it the repeat has to be implemented in software. The software needs to know roughly when the key is pressed and released in order to implement the repeat accurately. -Kevin -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
