The current theory is that rtl_request_irq will turn into sigaction. The old function will still be available, but the new function will be preferred. Comments? Suggestions? This will go into 2.3 -- --------------------------------------------------------- Victor Yodaiken FSMLabs: www.fsmlabs.com www.rtlinux.com FSMLabs is a servicemark and a service of VJY Associates L.L.C, New Mexico.