I am using slackware 3.5 installation with kernel 2.0.36 and have
6 serial ports available. Two serial ports are part of the motherboard
plus an STB 4-COM serial card that makes a total of 6 six ports. Before
upgrading to linux operating system, I use OK all 6 serial ports under
DOS/WINDOWS with the BPQ switch. Each individual serial port is
initialized as below in the rc.local file.
/sbin/setserial /dev/cua0 uart 16550 port 0x3F8 irq 4
/sbin/setserial /dev/cua1 uart 16550 port 0x2F8 irq 3
/sbin/setserial /dev/cua2 uart 16550 port 0x3E8 irq 10
/sbin/setserial /dev/cua3 uart 16550 port 0x2E8 irq 5
/sbin/setserial /dev/cua4 uart 16550 port 0x1F8 irq 11
/sbin/setserial /dev/cua5 uart 16550 port 0x1E8 irq 12
I look into /proc/ioports and see OK the port address taken by
the serial ports.
I am having problem using the last two ports cua4 (COM5) and
cua5 (COM6). Have tried to install a TNC with kiss attach but
the last two ports does not respond. The other first four ports
works fine with the same TNC with kiss attach. When my linux
system is initialized, I can see on the screen that recognizes
tty00, tty01, tty02, tty03 but the last two ports does not show up.
Can someone give me some hints to make the last two ports work.
THANK YOU
JOSE NG / HP2CWB
e-mail: [EMAIL PROTECTED]