[wplug] ioperm

[Weber, Larry A]

I want to be able to use my PC's printer port as a discrete parallel I/O
port.  I use ioperm() to acquire access permission to the I/O memory
location (0x378) of the port, and then use outb() and inb() to write or read
it.  This works fine but only if the user is root.  How do I give a user
permission to access an I/O memory location.  Giving the user permission to
lp1 does not work.

-laweber