The OTG device with the A-plug inserted is called the A-device and is responsible for powering the USB interface when required and by default assumes the role of host. The OTG device with the B-plug inserted is called the B-device and by default assumes the role of peripheral. An OTG device with no plug inserted defaults to acting as a B-device. If an application on the B-device requires the role of host, then the Host Negotiation Protocol (HNP) is used to temporarily transfer the host role to the B-device. COUNT 3
QSN1 The OTG device with the B-plug inserted is called what? ANS1 B-device QSN2 What does an OTG device default to with no plug inserted? ANS2 to acting as a B-device QSN3 What is the A-device responsible for? ANS3 powering the USB interface when required