APMD-List:
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  From: Edward A. Falk <falconer@best.com>
  To  : Avery Pennarun <apenwarr@worldvisions.ca>
  Date: Wed, 8 Dec 1999 17:46:55 -0800 (PST)

Re: Control apm

> > 	http://www.best.com/~falconer/apm.tar.gz
> 
> Without actually looking at your code (sorry, too busy) I'd say that the
> ability to enable/disable kernel APM support at run time is very important,
> and that I'd prefer that all of these features be merged into the single
> 'apm.c' command line program, for the sake of consistency.

I agree.  apm_enable/disable was just a test program for the new
kernel driver.  I was planning to move that functionality to
apm.c instead.

Here is an executive summary of the ioctls I added to apm_bios.c:

  APM_IOC_CHECK
	Executes bios call 5300 to return information about
	the apm bios.  Not very useful, and I don't think I'd
	keep it.

  APM_IOC_ENABLE
	Enable or disable apm.  Extremely useful.

  APM_IOC_DEFAULTS
	Reset to power-on defaults.  Don't know if it's
	worth keeping.

  APM_IOC_GET_POWER
	Get current power levels.  Doesn't work for retrieving
	individual battery levels, but that might just be the
	bios in my laptop.

  APM_IOC_GET_STATE
	Get the state of individual components.  Doesn't work
	on my laptop.

  APM_IOC_GET_VERSION
	Returns apm protocol version.

  APM_IOC_GET_CAPS
	Return apm bios capabilities.

  APM_IOC_GET_TIMER
	Retrieve resume timer settings.

  APM_IOC_SET_TIMER
	Set resume timer

  APM_IOC_DISABLE_TIMER
	Disable resume timer

  APM_IOC_RING
	Control resume-on-ring function


I made these changes to the version of apm_bios.c that ships
with RH 5.1.

If someone would like to send me a pointer to the latest version
of apm_bios.[ch], I'd be happy to do the port.

	-ed falk