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
