[maemo-developers] USB host mode on N800

From: Sebastian Mancke asteban at gmx.de
Date: Fri Nov 23 11:20:00 EET 2007

Kees Jongenburger schrieb:
> On Nov 22, 2007 5:58 PM, Dave Sullivan <dave at dave-sullivan.com> wrote:
>> Hey All,
>> I've got the modified kernel image for usb host mode, but before I go ahead
>> and try it, what kind of cable hacking is sufficient? I'd assume I could just
>> purchase a USB extension cord (A-type to A-type recepticle), hack off the
>> A-type and stick on a micro-USB connector.. but doesn't it require external
>> power?
> Hi
> I have measured the vbus voltage and it was only  about 3 volt a
> opposed to what would be required (5 volt) (there is no active voltage
> pump).
> I guess you will often need an external power(if possible just buy
> yourself a usb gender changer
> and plug the tablet into a powerd hub).
> While the patches are available is have not hear of anybody getting
> the n800 to work in usb-host mode.
> can somebody confirm a working usb-host on n800 or n810 perhaps?
We are using the n800 usb-host mode in a productive project.
It works absolutely reliable. Smaller devices like an USB Keyboard or
the Silabs USB Serial converter (CP2102) can be used without additional
power supply. For bigger devices (external hard disc, USB-Network
adapter) you have to use a powered USB hub, of course.


> greetings
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