B2G/Bluetooth/WebBluetooth-v2/BluetoothClassOfDevice

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Overview

BluetoothClassOfDevice is named after the Class of Device(CoD) field which is defined in Assign Numbers of Bluetooth Spec. Every single Bluetooth device should have its CoD and is able to be retrieved at discovering stage.

Interface

[CheckPermissions="bluetooth"]
interface BluetoothClassOfDevice
{
  /**
   * The following constants are defined in Assigned Numbers of bluetooth General Access Profile (GAP) spec.
   * See https://www.bluetooth.org/en-us/specification/assigned-numbers/baseband for more information.
   */

  // Major service class
  const unsigned short LIMITED_DISCOVERABILITY = 0x0001;
  const unsigned short POSITIONING             = 0x0008;
  const unsigned short NETWORKING              = 0x0010;
  const unsigned short RENDERING               = 0x0020;
  const unsigned short CAPTURING               = 0x0040;
  const unsigned short OBJECT_TRANSFER         = 0x0080;
  const unsigned short AUDIO                   = 0x0100;
  const unsigned short TELEPHONY               = 0x0200;
  const unsigned short INFORMATION             = 0x0400;

  // Major device class
  const octet MISC          = 0x00;
  const octet COMPUTER      = 0x01;
  const octet PHONE         = 0x02;
  const octet NETWORK       = 0x03;
  const octet AUDIO_VIDEO   = 0x04;
  const octet PERIPHERAL    = 0x05;
  const octet IMAGING       = 0x06;
  const octet WEARABLE      = 0x07;
  const octet TOY           = 0x08;
  const octet HEALTH        = 0x09;
  const octet UNCATEGORIZED = 0x1F;

  readonly attribute unsigned short majorServiceClass;
  readonly attribute octet majorDeviceClass;
  readonly attribute octet minorDeviceClass;
};

Properties

majorServiceClass

Description
majorServiceClass represents the Major Service Class of the CoD field of a Bluetooth Device. majorServiceClass "defines the general families of devices with which Bluetooth SIG members want their applications to be associated" [1].
Value type
unsigned short
Default value
0x0

majorDeviceClass

Description
majorDeviceClass represents the Major Device Class of the CoD field of a Bluetooth Device. majorDeviceClass "is the highest level of granularity for defining a Bluetooth device" [1].
Value type
octet
Default value
UNCATEGORIZED(0x1F)

minorDeviceClass

Description
minorDeviceClass represents the Minor Device Class of the CoD field of a Bluetooth Device. minorDeviceClass "is interpreted only in the context of the Major Device Class (but independently of the Service Class field)" [1].
Value type
octet
Default value
0x0

Reference

[1] https://www.bluetooth.org/en-us/specification/assigned-numbers/baseband

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