>Can someone tell me if there exist a driver for the Ericsson's MASC protocol
>to be used under OS/9. MASC is the Mobitex ASynC protocol used to
>communicate on the serial port between radiomodem and PC.
Have you looked at my MASC network driver for Linux? The logic in the
driver is portable to other systems. Not too long ago I made a clone
of it for a totally different environment (and in object oriented C++ rather
than C), a move which required only a few days to be up and running.
The hard part in MASC is getting the stupid protocol right. That
knowledge is captured in the source.