>>>>> On Thu, 6 Jul 1995, Mike Long <mike.long@analog.com> writes:

> Any process that opens /dev/io can write to any I/O port.  After your
> program opens /dev/io, you can use the inb(), &c., functions in
> /usr/include/machine/pio.h.
> 
> (NB: I have not actually tried this.)


Does anyone have any working code to serve as an example?  I tried
this, but I keep getting bus errors on the inb()/outb() calls.  [I was
trying to play with my Sony CDU31.  BTW, has anyone worked on porting
the FreeBSD or Linux Sony CD drivers?]


Tom Pavel

Stanford Linear Accelerator Center
pavel@slac.stanford.edu