主要用来开发bluetooth的hid 设备的profile。介绍了input,output,feature的规范。-The profile come from bluetooth.org.You will study the hid program on the blue

The Human Interface Device protocol was first defined for USB attached input devices (e.g. keyboards, mice, remote controls, buttons, etc.). The protocol itself is bus agnostic and has been ported across other transports, including Bluetooth™ and oth