Keeping PCMCIA card powered while in S3

Nate Lawson nate at root.org
Sat Dec 11 15:34:20 PST 2004


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).

-- 
Nate


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