Joerg Schilling wrote:
Two? Which two of getty, ppp, slip, uucico/uucp, kermit, X10power, and nut? Not to mention the getty+ alternatives which include fax and voice mail. You were right saying the problem was solved, but your count of applications is low. NOTE: nut is one of the serial applications which monitor a UPS, there are others.The tty dial in/out problem is unrelated to the SCSI / removable media problem. The tty problem has been solved more than 25 years ago. There are two devices /dev/ttya & /dev/cua0 The dialout device cua0 is blocked as long as a dial in is active and the dial in device is blocked as long as a dial out is active. This is a simple task compared to what cdrecord does on UNIX. There are only two programs with completely different tasks for ttys. There are many different taks related to CD/DVD sersives.
If a good solution is available, applications will change to use the solution.
-- bill davidsen <davidsen@tmr.com> CTO TMR Associates, Inc Doing interesting things with small computers since 1979