Actiontec electronic 56K manual # mknod /dev/ttyS4 c 4 # mknod /dev/cua4 c 5, # ./MAKEDEV ttySx

# ./MAKEDEV ttySx

Where x is the COM port. This will create the appropriate files.

Note: There is no MAKEDEV in OpenLinux. The commands will be as follows (as root):

#mknod /dev/ttyS4 c 4 68

#mknod /dev/cua4 c 5 68

Note: Versions of Linux with the 2.2x kernel or newer versions of Linux, the / dev/cua4 device is obsolete.

Step 2 Many programs use the /dev/modem symbolic link to refer to the modem. To create this link, type:

# ln -s /dev/ttyS4 /dev/modem

Typing

#chmod 666 /dev/ttySx

#chmod 666 /dev/modem

(where x is the COM port) will let all users access the modem.

Step 3 Determine the port and IRQ assigned to the device by typing:

# cat /proc/pci

The following is an example of a possible outcome:

5.Non-prefetchable 32 bit memory at 0x00000000. Bus 0, device 17, function 0:

Communication controller: Unknown vendor Unknown de- vice (rev 0).

Vendor id=11c1. Device id=480

Medium devsel. Fast back-to-back capable. IRQ 11. Master Capable

No Bursts

Min Gnt=252.Max Lat=14

Non-prefetchable 32 bit memory at 0xe4000000. I/O at 0x6400.

I/O at 0x6800. I/O at 0x6c00.

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