Chapter 6 – Device Discovery

Publisher Summary This chapter discusses the device discovery that is a key part of any JABWT application. In Bluetooth terms, device discovery is known as inquiry. There are two types of inquiry: general and limited. Devices respond to inquiry requests according to their discoverable mode. There are three types of discoverable mode: not discoverable, limited discoverable, and general discoverable. When a device issues a general inquiry, all devices that are limited and general discoverable respond. When a device performs a limited inquiry, only devices that are limited discoverable respond. The chapter defines how to retrieve additional information on local and remote devices. The Local Device class provides methods that allow the applications to request the current discoverable mode, retrieve the friendly name of the local device, and retrieve information on the JABWT implementation. The Remote Device class provides similar methods for retrieving additional information on the remote device. The Remote Device class also provides methods for setting and retrieving different security settings on the link to the remote device.