> Is it really that bad to have longword reads in PCI configuration space for
> byte/word registers?
I'm not 100% sure, but I think I've heard somebody complaining about this
problem some weeks ago.
> For writes it's different. But writes can be restricted to 1, 2 or 4 bytes
> without much problems. Software that wants to write to /dev/pci has to know how
> to deal with PCI config space anyway.
Sure.
> BTW, won't `cat /dev/pci' loop if read() returned 4 (i.e. reads are limited to
> longwords)?
It will loop, but it will be sloooooow.
Have a nice fortnight
-- Martin `MJ' Mares <mj@gts.cz> http://atrey.karlin.mff.cuni.cz/~mj/ Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth "New PC concept: "plug and pray""