Re: Nokia N900: musb is in wrong state after boot
From: Pali RohÃr
Date: Tue Jan 26 2016 - 09:35:13 EST
On Thursday 21 January 2016 12:30:13 Tony Lindgren wrote:
> * joerg Reisenweber <joerg@xxxxxxxxxxxx> [160121 11:35]:
> > On Thu 21 January 2016 11:21:13 Tony Lindgren wrote:
> > > Do you have some pointer
> > > to the "certain resistor value on ID to GND" spec? Is it maybe part of
> > > the carkit related parts of the USB spec?
> > ""Three additional ID pin states are defined at the nominal resistance
> > values of 124 kÎ, 68 kÎ, and 36.5 kÎ, with respect to the ground pin. These
> > permit the device to work with USB Accessory Charger Adapters that allows the
> > OTG device to be attached to both a charger and another device simultaneously.
> > ""
> > https://en.wikipedia.org/wiki/USB_On-The-Go#OTG_micro_plugs
> OK thanks. So it's the "accessory charger" part of the
> battery charging specification 1.1.
So, Tony, do you have some idea what needs to be changed and how to fix
peripheral mode after boot on Nokia N900?
First I would like to have fully working peripheral mode on Nokia N900
and then we can try to hack host mode (if possible).
But peripheral mode is a must due to development, because it provides
usb network or usb tty.