Frank, Try to use ltrace or strace to have the result of the opening functions with the port, it has helped me sometimes with the problems concerning the permisions, and other system calls. See you, Fer *************************************************************** Linux Smart Card Developers - M.U.S.C.L.E. (Movement for the Use of Smart Cards in a Linux Environment) http://www.linuxnet.com/smartcard/index.html ***************************************************************
