Re: [RFC] Power Management Policies

[David Brownell <david-b@pacbell.net>]

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On Friday 22 April 2005 1:05 pm, Pavel Machek wrote:
> Hi!
> 
> > > On the other extreme, we could allow userspace to configure every
> > > timeout value, and other policy attributes. 
> > 
> > With regards to this specifically, in addition to the
> > other extremes you mentioned, we also have two different types of
> > systems. On one hand, we have open systems, with many different options,
> > and plenty of PCI and PCMCIA slots to keep adding new devices. while
> > on the other hand, we have closed systems such as cell phones and PDAs,
> > where the number of attached devices stays fairly constant.
> 
> Notebooks and PDAs are not that different. Both are mostly closed with pcmcia/cf/sd slot...

And, whoops, USB ... which lets systems expand easily.  If the device
supports a hub, then you (or, more accurately, crazy people!) could
add over a hundred devices.  That's pretty "open".

AFAICT the hardware folk are more than ready to start providing hand-held
devices (PDA-ish, vs luggable laptops) with USB host capabilities.  But
WinCE isn't ready for that yet though... ergo products don't do it yet.
Linux has less trouble, since market positioning doesn't interfere.  :)

- Dave

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