> > i thought you couldn't use semaphores from interrupt context, anyway. > can someone clarify this? thanks. you can release semaphores in interrupt context, and you can do a trylock in interrupt context as well. not so with mutexes -- if you want to mail me at work (you don't), use arjan (at) linux.intel.com Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ