OTG support

configname: CONFIG_USB_OTG

Linux Kernel Configuration
└─>Device Drivers
└─>USB support
└─>OTG support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
The most notable feature of USB OTG is support for a
"Dual-Role" device, which can act as either a device
or a host. The initial role is decided by the type of
plug inserted and can be changed later when two dual
role devices talk to each other.

Select this only if your board has Mini-AB/Micro-AB
connector.