How to Install and Test PCI8255MULTI Card on Linux

1. Instalation :

Download driver from as follows:

Download the driver to /tmp

Please follow as follows to install:
This sample is under REDHAT 8.0 KERNEL 2.4.18-14.

Step1: Extract the file

Step 2: DIP Switch

The switch is used to identify card number, default setting is card 1. There are two methods to set

the card number:

A. PnP mode

Just plug in PCI bus adapter into PCI slot, the PCI BIOS will allocate I/O address to each adapter

automatically and assign card number start from 0 to each adapter. However, if you plug in more

than one adapter, please set whole adapters to card number 1 (default setting), then use software tools

to distinguish port id.

B.Manual mode

Set card number by card identifier switch, the PCI BIOS will assign pre-allocated I/O address to

each adapter. Please set different card number to each adapter (do not duplicate card number setting).

Step 3: Execute the install file to install .

Step 4: Please use "lsmod" command to check.

Step 5: Please edit /etc/rc.local to add a command line as follows:

Step 6: Please reboot systems.

Step 7: Please use 'lsmod' to check after system restarted. You can find the dpci8255multi .

2.About uninstall

3. About Test:

(1) The test equipment

The result is as follows:

(2) The test program
The device driver already includes two test programs.

The 'test.c' is the basic I/O program for 8255. Another "test1.c" is used for test the 8253 timer.

(3) Please compile the 'test.c' 'test1.c' files as following step:
Then it will create the 'test' 'test1' file.

(3)Please execute the 'test' file to test .

The test.c's content is as follows:

(4) Please execute 'test1' to test input and output. The result is as follows:

The test1.c's content is as follows: