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 Nepean, ON K2H 8E9 Canada | email: firstname.lastname@example.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to email@example.com More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/