I've recently cross-compiled the Atmel AVR Toolchain to IRIX and have been using my Octane2 for microcontroller development. One thing that I use a lot when debugging is RS232 Serial I/O and since IRIX doesn't have a built in terminal emulator I've been using the screen command from Nekoware with something like 'screen /dev/ttyd1 57600' . This mostly works but it seems there's an artificial delay when inputting/outputting characters to the console from the serial port. I don't see this issue when doing the same thing in OSX or Linux but IRIX seems to be buffering for 100-200ms before outputting. Does anyone know of way to force the tty to flush sooner? If not, have any good "minicom" type apps been ported to IRIX?