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Date:      Thu, 13 Sep 2001 10:51:24 -0600
From:      Warner Losh <imp@harmony.village.org>
To:        Darryl Okahata <darrylo@soco.agilent.com>
Cc:        FreeBSD-mobile@FreeBSD.ORG
Subject:   Re: pccardd and TI PCI-1250 PCI-CardBus Bridge 
Message-ID:  <200109131651.f8DGpOt06295@harmony.village.org>
In-Reply-To: Your message of "Thu, 13 Sep 2001 08:55:23 PDT." <200109131555.IAA22448@mina.soco.agilent.com> 
References:  <200109131555.IAA22448@mina.soco.agilent.com>  

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In message <200109131555.IAA22448@mina.soco.agilent.com> Darryl Okahata writes:
: "Russell D. Murphy Jr." <rdmurphy@vt.edu> wrote:
: 
: > Sep 13 10:10:31 kenmare /kernel: pcic0: <TI PCI-1250 PCI-CardBus Bridge> irq 9 at device 10.0 on pci0
: > Sep 13 10:10:31 kenmare /kernel: pcic0: PCI Memory allocated: 0x44000000
: > Sep 13 10:10:31 kenmare /kernel: pcic0: Polling mode
: > Sep 13 10:10:31 kenmare /kernel: pcic0: TI12XX PCI Config Reg: [speaker enable][pwr save][FUNC pci int + CSC serial isa irq]
: > Sep 13 10:10:31 kenmare /kernel: pccard0: <PC Card bus (classic)> on pcic0
: 
:      I'm a bit confused by the newcard messages.  Before newcard, if an
: IRQ was displayed on the pcicX line, the driver was using an IRQ.  Now,
: an IRQ is always displayed, even though the driver is using "Polling
: mode"?  What's the significance of the IRQ in polling mode?

This just means that the BIOS assigned an interrupt to the device, but
you specifically told it to use ISA interrupts and polling mode and
ignore that IRQ.  The PCI bus part of the system reports the interrupt
that's been routed.  A little confusing, I know, but hard to fix.

Warner

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