Messages in this thread | | | Date | Tue, 26 Jan 2016 15:34:50 +0100 | From | Pali Rohár <> | Subject | Re: Nokia N900: musb is in wrong state after boot |
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On Thursday 21 January 2016 12:30:13 Tony Lindgren wrote: > * joerg Reisenweber <joerg@openmoko.org> [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[4] at the nominal resistance > > values of 124 kΩ, 68 kΩ, and 36.5 kΩ, 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. > > [6]"" > > 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.
-- Pali Rohár pali.rohar@gmail.com
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