[maemo-users] USB Ethernet adaptor at N770

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On 4/20/06, W. Borgert <debacle at debian.org> wrote:
> Quoting Ed Bartosh <Eduard.Bartosh at nokia.com>:
> > On Thu, 2006-04-20 at 15:54 +0200, ext W. Borgert wrote:
> > > is it possible to connect a USB Ethernet adaptor to the N770?
> > > Of course, I would need to flash the device with "USB master
> > > mode"(?) and I would need a powered USB hub. But does the
> > > Nokia kernel have the relevant drivers? Thanks in advance!
> >
> > Yes, it's possible. Yes, you need to do "flasher
> > --enable-usb-host-mode".
> > You don't need to do any kernel modifications.
> > At least D-Link DUB-E100 works just fine for me.

  You can also enable host mode at any time by typing (in the
terminal, as root):
echo host > /sys/devices/platform/tahvo-usb/otg_mode

> And it's not even expensive :-)
> Do you run it without any special adaptor or USB hub?

  There needs to be a FAQ on this, as this is coming up a lot.  You
can't hook anything to the 770 without some type of power injector to
send 5 volts to the 770 via the USB port.  Hub or not, this is the
rule as the 770 does not provide power and has no way of recognizing
peripherals unless both are provided with external power.  The only
way to do this is via hardware modification, via a hacked mini USB
cable such as the one the 770 ships with connected to an external
power source, or by modifying a powered hub to supply power to the
host port, as I'm not aware of any that do this by default (Which
would be a violation of the USB standard).

Larry



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