Re: apmd and other archs

[Avery Pennarun <apenwarr@worldvisions.ca>]

On Thu, Nov 23, 2000 at 09:47:13AM +0100, Michael Schmitz wrote:

> > Not APM support exactly... simply support for the same interface.  Just
> > like powermacs have totally different sound systems and still use
> > /dev/dsp.
> > /proc/apm and /dev/apm_bios are so simple that it should be easy to convince
> > any power management system to provide those API's.
>
> The info logged to /proc/apm is currently logged to /etc/power/apm. I have

Is this a typo?  Why is status information in /etc?

> no idea what /dev/apm does aside from providing that log info, and I have
> no clue what /dev/apm_bios does, either. There should be no major problems

The /dev device selects true for read() when a power event happens (such as
a user suspend request or battery status change) and can be written to allow
a user process to initiate a system suspend.

> independent. I just don't see a good reason to change from pmud to apmd,
> if that's what you're suggesting.

It's always better, IMHO, to keep Linux userspace as similar as possible
between different architectures.  If pmud has features that apmd doesn't
have, or vice versa, I would rather merge them than keep them separate.  In
the process, we might as well work on making the kernel interfaces similar
too.  That's the whole _point_ of the kernel.

Have fun,

Avery

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/