dont-smoke.patch / Gold cap possibilities

Andy Green andy at openmoko.com
Tue Mar 25 10:34:51 CET 2008


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Somebody in the thread at some point said:
> On Tuesday 25 March 2008 10:15:20 Andy Green wrote:
>> Whether it makes a "feature" if the phone suspended on battery removal,
>> survived for 20 seconds on the goldcap so you can swap the battery and
>> resume, I dunno.  Inrush current from the battery would need managing
>> with a series resistor is all.
> 
> It is a nice feature but in some way also a bug because it would not 
> immediately reset the phone upon removal of the power source. In any case, 
> there would have to be sticker informing the user of the feature.

Hm it is true, but why does the user want to reset his phone?  If he
changed the SD Card or SIM I suppose (which he could do under this
scheme without losing power despite it is behind the battery) but maybe
we could deal with that in userspace.  There is no way to even suspend
with SD Card filesystem mounted right now.

He will notice right away when it resumes so we won't need a physical
sticker I would think.

> The utility of this greatly depends on how long the battery lasts, obviously. 
> The longer the battery lasts, the less the need for swapping it on the fly.

True.

- -Andy
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