On 07-12-07 16:43, Rene Herman wrote:
On 07-12-07 15:54, Andi Kleen wrote:
My machine in question, for example, needs no waiting within
CMOS_READs at all. And I doubt any other chip/device needs waiting
that isn't
I don't know about CMOS, but there were definitely some not too ancient
systems (let's say not more than 10 years) who required IO delays in the
floppy driver and the 8253/8259. But on those the jumps are already
far too fast.
Also see Alan's replies in the thread I posted a link to:
http://linux.derkeiler.com/Mailing-Lists/Kernel/2003-09/5700.html
Also 8254 (PIT) at least it seems.
By the way, David, it would be interesting if you could test 0xed. If your
problem is some piece of hardware getting upset at LPC bus aborts it's not
going to matter and we'd know an outb delay is just not an option on your
system at least. You said you could quickly reproduce the problem with port
0x80?
Rene.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
