usb枚举过程详解，usb开发必备资料，非常有用！-Show the details of list of USB,it is necessary for the usb developer to use .It is very usefull.

骨骼动画的例子, 骨骼动画的例子,-skeletal animation example, skeletal animation example,

用opengl写的一个骨骼动画，实现运动人体骨骼点阵模型的绘制。该人体模型需要具有以下功能：显示为点阵模型；可以运动-Opengl written with a skeletal animation, the realization of the human skeleton movement map lattice model. The needs of the human body model has the following f