JOSE NG LEE wrote in a message to Mike Bilow:
JNL> I am using slackware 3.5 installation with kernel 2.0.36 and
JNL> have 6 serial ports available. Two serial ports are part of
JNL> the motherboard plus an STB 4-COM serial card that makes a
JNL> total of 6 six ports. Before upgrading to linux operating
JNL> system, I use OK all 6 serial ports under DOS/WINDOWS with
JNL> the BPQ switch. Each individual serial port is initialized
JNL> as below in the rc.local file.
JNL> /sbin/setserial /dev/cua0 uart 16550 port 0x3F8 irq 4
JNL> /sbin/setserial /dev/cua1 uart 16550 port 0x2F8 irq 3
JNL> /sbin/setserial /dev/cua2 uart 16550 port 0x3E8 irq 10
JNL> /sbin/setserial /dev/cua3 uart 16550 port 0x2E8 irq 5
JNL> /sbin/setserial /dev/cua4 uart 16550 port 0x1F8 irq 11
JNL> /sbin/setserial /dev/cua5 uart 16550 port 0x1E8 irq 12
By the way, Linux supports running all four of the STB ports on a single IRQ.
Simply set the jumpers per the docs and specify the same IRQ on each line.
You will likely need to explicitly disable AST FourPort mode ("^fourport") for
each of the STB ports, also.
-- Mike
(STB dealer)
