Subject: Re: byte-sized PCI conf regs?
To: Todd Whitesel <toddpw@best.com>
From: Matthias Drochner <drochner@zel459.zel.kfa-juelich.de>
List: tech-kern
Date: 09/20/1999 14:47:32
toddpw@best.com said:
> Is there a way to do the equivalent of pci_conf_{read,write} on a
> single byte?
No, it needs some shifting/masking/&/| to get this done.
(I believe config space accesses are "usually" idempotent,
so it shouldn't be a problem.)
> PCI conf 0x40 was 0
> PCI conf 0x40 set to 0
Strange, that should work.
best regards
Matthias