Userspace app for fast charge (was Re: Price of the Freerunner spare parts)
bobbymartin2 at gmail.com
Thu Mar 27 23:52:11 CET 2008
I just want to make it clear: my python userspace app
automatically send you into fast charge mode. It automatically *asks*
you if you want to go into fast charge mode whenever a slow charger is
recognized. It also goes through a (annoying, but I think necessary)
confirmation sequence before it goes into fast charge mode.
It also knows nothing about GTA02. It just sends a fastcccv to the
charger. I assume on the 02 that still just makes it pull 500 mA, not
(Kevin, I know that you know all this, but at one point in the thread
it looked as if someone was saying my app would automatically force
> From: "steve" <steve at openmoko.com>
> To: "'Kevin Dean'" <kevin at foreverdean.info>, "'List for Openmoko community discussion'" <community at lists.openmoko.org>
> Date: Thu, 27 Mar 2008 14:02:46 -0700
> Subject: RE: Price of the Freerunner spare parts
> Thanks Kevin,
> I recall asking engineering what would happen if somebody disabled this
> check ( hey its open source) and the general impression was that if the
> charger was not capable of fast charging then you would not have nice
> outcomes. I think the worse case might be if you tried to draw more than
> 500ma from a PC USB. Somebody not in marketing should answer that question.
> -----Original Message-----
> From: kev.forever at gmail.com [mailto:kev.forever at gmail.com] On Behalf Of
> Kevin Dean
> Sent: Thursday, March 27, 2008 12:22 PM
> To: List for Openmoko community discussion
> Cc: steve
> Subject: Re: Price of the Freerunner spare parts
> On Thu, Mar 27, 2008 at 2:58 PM, joerg <joerg.twinklephone at gmx.de> wrote:
> > Correct, it checks for 48k-OHM resistor on ID-pin of mini-USB, then
> enables 1A
> > instead of 100/500mA USB-standard.
> > You also may enable 1A-mode (and 500mA mode) via some small GUI-app IIRC.
> This is possible via userspace with Bobby's application.
> However, the flaw to this is that it will force fast charge even if
> the charger isn't capable and hints that this could be... bad. :)
> For the record, it APPEARS that with the Python application, the iGo
> works just fine as a charger.
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