LE AUDIO---Volume Control Service
目录
Abstract
1 Introduction
1.1 Conformance
1.2 Service dependencies
1.3 Bluetooth Core Specification release compatibility
1.4 GATT sub-procedure requirements
1.5 Transport dependencies
1.6 Application error codes
1.7 Byte transmission order
1.8 Language
2 Service
2.1 Declaration
2.2 Included services
2.2.1 Topology
2.3 Overview
2.3.1 Volume State
2.3.1.1 Volume_Setting field
2.3.1.2 Mute field
2.3.1.3 Change_Counter field
2.3.2 Volume Flags
2.3.2.1 Volume_Setting_Persisted field
3 Service characteristics
3.1 Volume State
3.1.1 Volume_Setting field
3.1.2 Mute field
3.1.3 Change_Counter field
3.1.4 Volume State behavior
3.2 Volume Control Point
3.2.1 Volume Control Point procedure requirements
3.2.2 Volume Control Point behavior
3.2.2.1 Relative Volume Down procedure
3.2.2.2 Relative Volume Up procedure
3.2.2.3 Unmute/Relative Volume Down procedure
3.2.2.4 Unmute/Relative Volume Up procedure
3.2.2.5 Set Absolute Volume procedure
3.2.2.6 Unmute procedure
3.2.2.7 Mute procedure
3.3 Volume Flags
3.3.1.1 Volume Flags behavior
4 4 SDP interoperability
5 Acronyms and abbreviations
6 References
Abstract
本规范描述了在音频设备上暴露控制接口和音量状态的服务。
1 Introduction
此服务使设备能够暴露其音频音量的控制方式和状态。
1.1 Conformance
如果声称符合本规范，则应以规定的方式支持本规范中注明为强制性的所有功能（过程强制性）。这也适用于所有注明支持的可选功能和条件性功能。