USB OTG defines a "A" mode where the slave device is unpowered and the host device can charge.
Other modes have either the phone charging but not talking to radios or the phone talking but not charging.
Fixing this (AFAIK) requires some kernel modification....
USB OTG defines a "A" mode where the slave device is unpowered and the host device can charge.
Other modes have either the phone charging but not talking to radios or the phone talking but not charging.
Fixing this (AFAIK) requires some kernel modification....