National Instruments PCI-232/2 用户手册

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After you install the serial hardware (as shown in your PCI serial getting 
started manual), follow these steps to set up the interface.

Create a device for each port on your multiport interface. You only need to 
do this step once. Port address is the I/O address of the device, and port 
number is the device/serial port number of the port. Port number is used in 
the following context: 

ttyS<

port number>

. Since serial ports built into 

your computer are typically named from 

/dev/ttyS0

 to 

/dev/ttyS3

, the 

port number you choose needs to be four or greater.

Enter the 

/dev

 directory, then use the 

MAKEDEV

 script to create a device for 

each serial port on the interface by entering the following.

linux# cd /dev

linux /dev# ./MAKEDEV ttyS<

port number>

Enter the following to make the devices for a two-port interface:

linux# cd /dev

linux /dev# ./MAKEDEV ttyS4

linux /dev# ./MAKEDEV ttyS5

Follow these instructions to find the port address, IRQ, and memory 
assignment of your PCI serial interface.

Repeat this section each time you add another interface or physical device to the 

computer.

This step may be done in normal user mode.

1.

Use 

lspci (

a command that displays information about the PCI bus) 

with the 

-v

 option (be verbose), the 

-n

 option (show PCI vendor and 

device codes as numbers), and the 

-d 1093:*

 option (display 

information only on devices with a National Instruments Vendor ID 
of 1093), to find the resource information of your serial interface.

linux# lspci -v -n -d 1093:*

Something similar to the following should appear. In this output, the 
IRQ is 11; the memory location is 0xdff80, and the port addresses are 
0xdff0 and 0xdfe0.