lkml.org 
[lkml]   [2009]   [Aug]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: Smart Battery System Design (was: Re: Question about userspace-consumer)
    On Sat 2009-08-15 17:43:24, Mark Brown wrote:
    > On Fri, Aug 14, 2009 at 06:32:01PM +0200, Pavel Machek wrote:
    >
    > > Please don't put basic fastcharge logic to userspace:
    >
    > > * you still want to fastcharge at init=/bin/bash boot
    >
    > > * you want to fastcharge while machine is in s2ram. See spitz. Doing
    > > that with userspace would be quite tricky.
    >
    > Depending on the technologies involved and how well integrated the power
    > path management is with the battery charger fast charge during suspend
    > may not actually be desirable. Some systems need or desire active
    > thermal management of the system from the CPU during fast charge.

    Do you have example of some system?

    Ok, well... anyway many machines _want_ fastcharge while suspended,
    and putting charging into userland would break them (or make that
    fairly difficult).
    Pavel

    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


    \
     
     \ /
      Last update: 2009-08-16 00:37    [W:0.021 / U:0.044 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site