National Instruments PCI-232/4 用户手册

./intenable <

PCI memory address found 

in lspci>

For example, enter the following to enable interrupts for a PCI serial 
interface with memory at 0x000dff80:

linux PCI-SERIAL# ./intenable dff80

To see what system resources your serial interface is using, use the 

setserial

 command, as follows:

linux# setserial -gv /dev/ttyS<

port number>

For the 

lspci

 and 

setserial

 examples, something similar to the 

following should appear:

Use 

FIFOtrigger

 (from the 

PCI-SERIAL

 directory) to enable the receive 

and transmit FIFOs and to set the trigger levels of these FIFOs. 

FIFOtrigger

 enables the FIFO of only one serial port. To enable the FIFO 

for your other serial ports, rerun 

FIFOtrigger

 with a different serial port 

number specified in the command line. Enter the following to use 

FIFOtrigger

:

linux PCI-SERIAL#./FIFOtrigger <

port number> 

<

rx_trigger> <tx_trigger>