Linux-Hams archive - January 1999: SERIAL PORTS PROBLEM

SERIAL PORTS PROBLEM

Mike Bilow ()
Tue, 05 Jan 99 12:24:00 -0000


JOSE NG LEE wrote in a message to Mike Bilow:

JNL> I am having problem using the last two ports cua4 (COM5) and
JNL> cua5 (COM6). Have tried to install a TNC with kiss attach
JNL> but the last two ports does not respond. The other first
JNL> four ports works fine with the same TNC with kiss attach.
JNL> When my linux system is initialized, I can see on the screen
JNL> that recognizes tty00, tty01, tty02, tty03 but the last two
JNL> ports does not show up.

First, make sure the devices exist in /dev.

Second, make sure (with "setserial -ag /dev/ttyS*') that the ports really are
configured correctly. You may find that you need to explicity disable AST
FourPort mode ('^fourport') or something of that nature.

-- Mike