Are you using the BIOS USB legacy keyboard emulation? Matt
On Mon, Nov 03, 2003 at 01:57:23PM -0700, Daniel Sheltraw wrote: > Hello USB developer list > > We are using the RTAI patched kernel for hard-real time > scheduling of tasks. When USB is enabled in BIOS and when > making use of a USB keyboard and mouse we get unacceptable > jitter in the otherwise rock-solid scheduling provided by a > RTAI kernel. I was hoping someone can shed some light on > what is causing this problem. > > RTAI provides its scheduling accuracy in part by trapping > all normal Linux interrupts. I am guessing that the USB system > is producing interrupts that RTAI can not trap. It appears that > there are interrupts generated by the USB system that function > at a level below the usual Linux interrupt handling system. > Is this true and if so why is it necessary? > > Thanks, > Daniel Sheltraw > > > ------------------------------------------------------- > This SF.net email is sponsored by: SF.net Giveback Program. > Does SourceForge.net help you be more productive? Does it > help you create better code? SHARE THE LOVE, and help us help > YOU! Click Here: http://sourceforge.net/donate/ > _______________________________________________ > [EMAIL PROTECTED] > To unsubscribe, use the last form field at: > https://lists.sourceforge.net/lists/listinfo/linux-usb-devel -- Matthew Dharm Home: [EMAIL PROTECTED] Maintainer, Linux USB Mass Storage Driver Dudes! May the Open Source be with you. -- Eric S. Raymond User Friendly, 12/3/1998
pgp00000.pgp
Description: PGP signature
