Hi, Francois Groenewald noted that the RIO driver under Linux didn't implement the TIOMGET and related IOCTLs. Attached is a patch that fixes this. Alan, sorry for being so late with this: I was waiting for an "yep it works" from Francois... Roger. -- ** R.E.Wolff@BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2137555 ** *-- BitWizard writes Linux device drivers for any device you may have! --* * There are old pilots, and there are bold pilots. * There are also old, bald pilots.