Hello! I have just encountered a problem with the L4Env I/O client API libio.h if you try to use this in a C++ program. You get a syntax error because there is a variable having the name "class". But that is a C++ keyword. In l4/include/x86/l4/generic_io/types.h: **************************************** struct l4io_drv: "unsigned class:8;" struct l4io_pci_dev: "unsigned long class;" In l4/include/x86/l4/generic_io/libio.h: **************************************** "int l4io_pci_find_class(unsigned long class, ...)" Although these variable names are possible in C, you run in syntax errors when trying to use these API interfaces in a C++ program. I think these variables should get other names, shouldn't they? Kind regards Marcel -- Marcel Winandy http://www.prosec.rub.de/staff/winandy.html Applied Data Security Group, Ruhr-University Bochum, Germany