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Subjectproblem accessing /dev/port

To begin, I'm running 2.2.17 with some patches.

I'm attempting to have a userspace app read and write I/O ports on a powerpc
machine. The obvious method (iopl()) doesn't seem to be available (using glibc,
but sys/io.h doesn't exist).

When I try and access /dev/port with a small utility that works fine on my PIII,
I get the error message "Device not configured". The file exists in /dev and
has the same permissions on both machines.

Do I need to enable something in the kernel to support this? Where is this



Chris Friesen | MailStop: 043/33/F10
Nortel Networks | work: (613) 765-0557
3500 Carling Avenue | fax: (613) 765-2986
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