RS-232: Applefile III and QuickFile III

RS-232: Applefile III and QuickFile III

Applefile will not recognize an .RS232 driver configured as a character
read-write device ($63). If .RS232 is changed to a write only device ($41),
Applefile recognizes it and shows it under the printers available. If an RS-232
device is a write only device, the handshaking, XON/XOFF or ETX/ACK, will still
function. XON/XOFF and ETX/ACK are not data per se and will be treated as
handshaking. Therefore, a driver will still be found if it is configured as a
write only device such as a printer, since the driver does not have to READ the
printer. These same modifications will allow QuickFile III to use the .RS232
driver.

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