Packet based communications...

…We are using SDLC on the Zilog SCC, and we have a resource manager that
we wrote that works with the hardware, and uses opens, reads, and writes.
The way it works now is the client does a read requesting the max expected
packet size, and the Resource manager returns 1 packet such that the read
will return the packet size and fill the local buffer.

This is how we desided to do it during implentation, however I would prefer
to use a “Stardard” model for the API but I don’t know what standard API
would cover SDLC and fit into the QNX models. Does anybody have a