[Bug 956] GTA02 charging with 1000mA using wall-outlet charger

[bugzilla-daemon at bugzilla.openmoko.org]

http://bugzilla.openmoko.org/cgi-bin/bugzilla/show_bug.cgi?id=956





------- Additional Comments From msmakela at gmail.com  2008-01-23 10:38 -------
Is there any update on this bug? Will the GTA02 follow the OMTP spec for
charging that may have been available at
<http://www.omtp.org/docs/OMTP_Local_Data_Connectivity_v1_0.pdf> but I sadly
have not come across?

The Battery Charging Specification of the USB Implementers Forum
<http://www.usb.org/developers/devclass_docs/batt_charging_1_0.zip>
does not mention any 48k resistor as in the bug description. Instead, it says
that dedicated chargers must identify themselves by shorting D+ and D- with at
most 200 ohms resistance. Unfortunately for me, this means that the only USB
port on the GTA02 can't be used for charging and talking to a USB device at the
same time. I hope you can implement some user-space hook that makes the GTA02
believe that an attached USB device (not host) also is a dedicated charger.



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