[lkml]   [2007]   [May]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [Kernel-discuss] Re: [PATCH 3/8] Universal power supply class (was: battery class)
On Sat, 05 May 2007, ian wrote:
> On Sat, 2007-05-05 at 00:54 -0300, Henrique de Moraes Holschuh wrote:
> > Given that USB-power *is* usually also "dumb" (i.e. it doesn't do any
> > control signaling over the USB bus for power-control purposes),
> it might be dumb, but it is useful to know wether the PDA is charging
> from usb or mains power. and some devices allow one to switch on / off
> the ability to charge via usb

Which, at the proper abstraction level provided by this class, means that it
allows one to switch on or off a power supply channel.

Laptops let one do this with their batteries, too. It is the same thing. I
didn't check if the class comes with an attribute for "enable/disable this
power source", but if doesn't, we need to add one: it *is* a generic and
widely used capability in laptops, and according to you, also on PDAs.

"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2007-05-06 20:13    [W:0.120 / U:0.680 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site