= Second Parallel Port

When you add a second parallel port to your PCI bus you have to
find out the address before you can use it with EMC.

To find the address of your parallel port card open a terminal
window and type

    lspci -v


You will see something similar to this as well as info on
everything else on the PCI bus:

    0000:00:10.0 Communication controller: NetMos Technology PCI 1 port
    parallel adapter (rev 01)
    Subsystem: LSI Logic / Symbios Logic: Unknown device 0010
    Flags: medium devsel, IRQ 11
    I/O ports at a800 {[}size=8{]}
    I/O ports at ac00 {[}size=8{]}
    I/O ports at b000 {[}size=8{]}
    I/O ports at b400 {[}size=8{]}
    I/O ports at b800 {[}size=8{]}
    I/O ports at bc00 {[}size=16{]}


In my case the address was the first one so I changed my .hal file
from

    loadrt hal\_parport cfg=0x378


to

    loadrt hal\_parport cfg=0x378 0xa800 in


Note the double quotes surrounding the addresses.

and then added the following lines so the parport will get read and
written to.

    addf parport.1.read base-thread
    addf parport.1.write base-thread


After doing the above then run your config and verify that the
parallel port got loaded in Machine/Show Hal Configuration window.