3G USB Dongle (was Re: Neo as cellular modem?)

Andy Green andy at openmoko.com
Wed May 28 10:05:31 CEST 2008


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Somebody in the thread at some point said:

|> That's a great idea Matt! Might be a drain on the battery moving packets
|> around though. Speaking of which, would anyone know if it would be
possible
|> to use a 3G USB dongle on one of these?
...
| i think it may still be up in the air how to run a usb device and keep
| the freerunner charging externally. this 3g adapter i'm using draws a
| lot of power, so it almost certainly won't work when only powered from
| a freerunner's battery.

I have one of these 3G dongles, it should work from Freerunner battery
OK since we have a charge pump for the full 500mA it is allowed to pull.
~ It certainly works out OK for USB memory sticks anyway.  "Battery life
will be impacted" it is fair to say though.

If we have pppd in the rootfs I will give it a spin later, since I got
it working on my laptop using pppd and magic dialler / expect type scripts.

- -Andy
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