Re: [ppopov@mvista.com: Re: [Linux-mips-kernel]ioremap & ISA]

[Ralf Baechle <ralf@oss.sgi.com>]

On Tue, Dec 18, 2001 at 11:36:50AM -0800, Jun Sun wrote:

> > > I see.  So isa_slot_offset is for isa_read/isa_write, although I still 
> > > don't
> > > see what kind of drivers would use isa_read/isa_write.
> > 
> > Dumb answer - ISA drivers.
> 
> (Hmm, do you mean "dumb question"? :-0)  

Somewhere I heared there are only dumb answers, no dumb questions :-)

> I was thinking most ISA dirvers should simply use inb/outb to access ioports.
> Don't really any ISA devices have their own memory space.  But, anyway, who
> can still remember those dark ages?

Isa_slot_offset is related to memory mapped I/O, in and out are not
memory mapped I/O.

  Ralf