* joerg Reisenweber <jo...@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. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
