Re: PCMCIA still advised as modules?

[Dominik Brodowski <linux@dominikbrodowski.net>]

On Sat, Jun 11, 2005 at 05:08:08PM -0400, Kyle Moffett wrote:
> On Jun 10, 2005, at 08:21:05, Dominik Brodowski wrote:
> >At least from 2.6.13 on, it will be much easier if you have the PCMCIA
> >"modules" built into the kernel, as you won't need userspace  
> >interaction any
> >longer (except on old yenta_socket bridges during startup, but  
> >that's a
> >different story). Therefore, I do not see any drawbacks to having  
> >the PCMCIA
> >modules built into the kernel.
> 
> Under such a setup, what is the easiest method to shut down the  
> bridge chip
> for power savings?  On my Debian laptop where said drivers are  
> modular, I can
> run "/etc/init.d/pcmcia stop" to unload the module and disable the  
> PCMCIA chip,
> saving a noticeable amount of power.  Is there some equivalent for  
> compiled-in
> drivers?  Thanks!

You can do "cardctl suspend" or (untested) echo "3" into the "power/state"
file of the relevant device inside the sysfs device tree ("/sys/devices/").

	Dominik
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