[openbeos] Re: IO space access
- From: François Revol <revol@xxxxxxx>
- To: openbeos@xxxxxxxxxxxxx
- Date: Sun, 18 May 2003 21:07:47 +0200 (CEST)
En réponse à Bruno van Dooren <bruno_van_dooren@xxxxxxxxxxx>:
> > The simplest is to use isa/pci->read/write_io_8(), which are
> > platform-independant, and not that much slower.
>
> does it matter which one is use PCI or ISA?
> maybe PCI is better, because the protocol is better?
> on the other hand: PS2 is connected to the ISA bridge, which
> of course if connected to the PCI bridge...
>
On x86 at least both are identical I think.
However it's cleaner to use the one which your device depend on
(besides, no need to get_module(ISA) only for this if you have
a PCI dev).
In this case, ISA should be the one I think.
François.
Other related posts:
