io.h and I/O port access from user space

Hollis Blanchard hollis at
Wed Feb 6 10:07:46 EST 2002

On Tue, 2002-02-05 at 16:17, Jeffrey D. Kowing wrote:
> Specifically, I've got an inhouse 603ev/MPC106 board on a PC/104 form
> factor running a linuxppc 2.4.x kernel.  I've been using an Adastra
> NSP-104 PC/104 module as my network interface card.  That card,
> besides its ethernet chip, also has a Super I/O PC87338 chip that
> controls two serial ports (i.e. SCC1 and SCC2).  Naturally, I just had
> to use those two serial ports, and, of course, it doesn't have nice
> little jumpers to set IRQ and IO base addresses.  Instead, it wants to
> be configured using Plug-n-Play which I obviously know nothing about.
> Anyways, I thought, hey, I'll investigate by using this nifty
> isapnptools package.  Silly me.

Have you tried enabling CONFIG_PNP and CONFIG_ISAPNP? That's all I had
to do to get ISA PnP working for an onboard sound card here.


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