UAC耳机自带HID调节声音报告描述符

UAC耳机自速的外接按钮实现声音的控制：增加音量也减少音量。

设备管理器如下：

05 0C   //0  GLOBAL_USAGE_PAGE(Consumer)    
09 01   //2  LOCAL_USAGE(    Consumer Control     )    
A1 01   //4  MAIN_COLLECTION(Applicatior)    
85 01   //6  GLOBAL_REPORT_ID(1)    
15 00   //8  GLOBAL_LOGICAL_MINIMUM(0)    
25 01   //10 GLOBAL_LOCAL_MAXIMUM(1)    
75 01   //12 GLOBAL_REPORT_SIZE(1)    
95 01   //14 GLOBAL_REPORT_COUNT(1)    
09 E9   //16 LOCAL_USAGE(    Volume Increment     )    
81 02   //18 MAIN_INPUT(data var absolute NoWrap linear PreferredState NoNullPosition NonVolatile )    Input 0.1
09 EA   //20 LOCAL_USAGE(    Volume Decrement     )    
81 02   //22 MAIN_INPUT(data var absolute NoWrap linear PreferredState NoNullPosition NonVolatile )    Input 0.2
09 CD   //24 LOCAL_USAGE(    Play/Pause     )    
81 02   //26 MAIN_INPUT(data var absolute NoWrap linear PreferredState NoNullPosition NonVolatile )    Input 0.3
09 B5   //28 LOCAL_USAGE(    Scan Next Track     )    
81 02   //30 MAIN_INPUT(data var absolute NoWrap linear PreferredState NoNullPosition NonVolatile )    Input 0.4
09 B6   //32 LOCAL_USAGE(    Scan Previous Track     )    
81 02   //34 MAIN_INPUT(data var absolute NoWrap linear PreferredState NoNullPosition NonVolatile )    Input 0.5
09 B7   //36 LOCAL_USAGE(    Stop     )    
81 02   //38 MAIN_INPUT(data var absolute NoWrap linear PreferredState NoNullPosition NonVolatile )    Input 0.6
09 B3   //40 LOCAL_USAGE(    Fast Forward     )    
81 02   //42 MAIN_INPUT(data var absolute NoWrap linear PreferredState NoNullPosition NonVolatile )    Input 0.7
09 B4   //44 LOCAL_USAGE(    Rewind     )    
81 02   //46 MAIN_INPUT(data var absolute NoWrap linear PreferredState NoNullPosition NonVolatile )    Input 1.0
05 0B   //48 GLOBAL_USAGE_PAGE(Telephony)    
09 24   //50 LOCAL_USAGE(    Redial     )    
81 02   //52 MAIN_INPUT(data var absolute NoWrap linear PreferredState NoNullPosition NonVolatile )    Input 1.1
09 20   //54 LOCAL_USAGE(    Hook Switch     )    
81 02   //56 MAIN_INPUT(data var absolute NoWrap linear PreferredState NoNullPosition NonVolatile )    Input 1.2
09 2F   //58 LOCAL_USAGE(    Phone Mute     )    
81 06   //60 MAIN_INPUT(data var relative NoWrap linear PreferredState NoNullPosition NonVolatile )    Input 1.3
95 05  //62 GLOBAL_REPORT_COUNT(5)    
81 01  //64 MAIN_INPUT(const array absolute NoWrap linear PreferredState NoNullPosition NonVolatile ) Input 2.0
C0    //66 MAIN_COLLECTION_END

增加与减少音量的测试数据

 Length    Phase  Data           
 --------  -----  ---------------
 //增加音量
        3  IN     01 01 00       
        3  IN     01 01 00       
        3  IN     01 00 00       
        3  IN     01 00 00       
//减少音量        
        3  IN     01 02 00       
        3  IN     01 02 00       
        3  IN     01 00 00       
        3  IN     01 00 00