Re: Does PCMCIA require ISA?
On Wed, 18 Jun 2003 at 1:06pm, Jeffrey L. Taylor wrote:
:Quoting Patrick Wiseman <pwiseman@mindspring.com>:
:> I've been messing around with my kernel, and compiled without ISA support,
:> since I'm on a PCI machine. On rebooting, PCMCIA gave a ResourceIRQ
:> conflict. When I recompiled the kernel with ISA support, PCMCIA
:> recognised my card as always.
:>
:> It turns out my "discovery" is mentioned in the HOWTO, which says:
:>
:> "In some cases, kernel misconfiguration can also produce an apparent
:> interrupt shortage. On later 2.4 and 2.5 kernels, if CONFIG_ISA is not
:> enabled, then the PCMCIA drivers will assume no ISA bus interrupts are
:> available."
:>
:>
:> Seems to me that the "misconfiguration" is in the PCMCIA drivers'
:> "assumption" that no interrupts are available, but so long as it's working
:> again.
:>
:> Patrick
:>
:
:Depends on how the bridge to PCMCIA is implemented. On my laptop
:(no apparent ISA bus), PCMCIA is implemented with a Intel i82365
:ISA-to-PCMCIA bridge. Check /var/log/kern.log for similar message on
:boot.
CardBus here and the i82365 option is _not_ compiled into the kernel. But
I don't really understand how these things work so maybe there's a reason
to need CONFIG_ISA.
Patrick
--
Patrick Wiseman pwiseman@mindspring.com
Linux user #17943 *Google First, Ask Later*
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