Re: Generic AC USB chargers - Ipods and others

On Sun, 16 Mar 2008 01:58:53 -0700, PhattyMo <PhattyMo@xxxxxxxxxxxx>
wrote:

George wrote:
I've searched for this, but haven't found an explanation, and
thought someone here might know.

There appears to be a difference in the dedicated (AC) charger
requirements for Ipods versus other USB devices (other brands of
players, phones, or what have you). Moreover, there appears to be a
difference between generations of Ipods, such that some generic
chargers will work with older Ipods, but not the latest generation,
and vice versa.

Since I know it's true for my Sansa MP3 player, I'm gonna assume
that other similar devices that charge through a normal USB port
will also charge with a dedicated charger that provides 5VDC at a
few hundred milliamps, and such a charger need not be "intelligent"
at all. Do Ipods require something different? If so, what? And
how does that vary from one generation to the next?

Ideally, there would be Apple documentation providing this info, but
I haven't found it. If someone has a useful link on this, it would
be most helpful.

Thanks



Ditto,I'd like to see it too.

With my 2nd gen Nano,it won't charge no matter what I do. There's a
'trick' to getting some of the others to work from a 'non-smart' charger
that involves a couple resistors on the data lines,to either pull them
high,or low. This didn't work on my iPod,I guess it needs an actual USB
host controller to negotiate with? I dunno.

Not only that but an installed host application requirement soon to
follow. And certainly M$ centric. The SPA, MPAA, and RIAA types
cannot tolerate other than anal retentive copyright and DRM.
.

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