Re: serial drivers

Alan Cox (
Tue, 5 Aug 1997 20:36:24 +0100 (BST)

> There is currently no way to tell when data is sent or
> received from the serial port (except the program that
> has the port open for reading and writing - it knows
> when it sends and receives). You will need to modify
> serial.c in the kernel to get the data you need.

You can however tell when a write is completed, which is the important
stuff you need for RS485 busses.