National Instruments PCI-232/4 用户手册

00:0a.0 Class ff00: 1093:d140 (rev 01)

Flags: medium devsel, IRQ 11

Memory at 000dff80 (low-1M, non-prefetchable)

Write down the IRQ, memory location, and all the I/O port addresses 
for your computer.

PCI Eight-Port Users—The PCI eight-port interfaces show only one I/O port 

address listing. The addresses of the other seven I/O ports are calculated by adding eight to 
the previous port address, (n

 × 

8 + I/O port) for 0 < n < 8. The 

lspci

 call displays 

something similar to the following:

00:0a.0 Class ff00: 1093:d150 (rev 01)

Flags: medium devsel, IRQ 11

Memory at 000dff80 (low-1M, non-prefetchable)

Assign the serial driver to your devices. 

You need to repeat this step each time you restart your computer or until you set up 

your 

/etc/rc.d/rc.serial

 file. (Refer to the section 

 for 

more information on setting up the 

/etc/rc.d/rc.serial

 file.) 

Enter the following to use 

setserial

 to tell the kernel each device’s 

UART, port address, and IRQ. Use information returned from the 

lspci

 

output, and remember to precede the port address with 

0x

.

setserial /dev/ttyS<

port number> uart 16550A 

port <

port address> irq <irq> ^fourport

The 

^fourport

 flag is required regardless of how many ports you have on your 

interface. The 

^fourport

 flag tells the serial driver that you are not using an AST 

four-port interface.

Using an invalid port can lock up your machine.

Enter the following to assign the serial driver to your devices for the values 
in the above two-port 

lscpi

 output:

setserial /dev/ttyS4 uart 16550A port 0xdff0 irq 

11 ^fourport