Date: Sat, 11 Dec 2004 17:16:16 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: nate@root.org Cc: freebsd-acpi@freebsd.org Subject: Re: Keeping PCMCIA card powered while in S3 Message-ID: <20041211.171616.64807335.imp@bsdimp.com> In-Reply-To: <41BB83F6.4010309@root.org> References: <1102804150.2640.4.camel@RabbitsDen> <41BB83F6.4010309@root.org>
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In message: <41BB83F6.4010309@root.org>
Nate Lawson <nate@root.org> writes:
: Alexandre "Sunny" Kovalenko wrote:
: > Good people,
: >
: > is there any chance to keep PCMCIA firewire card powered when machine
: > goes into S3 mode, or at least push poweroff as far as possible. The
: > reason for the question is that I am trying to debug S3 mode and do not
: > have any other usable means on this laptop.
: >
: > Any suggestions, especially RTFMs with FM pointers are welcome.
: >
:
: We currently don't power down cardbus (PCMCIA) busses but we do power
: down the card itself. Setting hw.pci.do_powerstate=0 before suspending
: (or in /boot/loader.conf) should stop all PCI power state setting
: (including cardbus which is just another pci-like bridge).
I thought that we did power off cardbus cards:
static int
cardbus_suspend(device_t self)
{
cardbus_detach_card(self);
return (0);
}
which has the side effects of turning off the card entirely.
Warner
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