低功耗的Linux驱动源码，在公司的POS产品中运行稳定运行多年，已经得到了时间的验证，很多程度上延长了电池的使用时间，提升了用户的体验。-Low power Linux driver source code, in the company s POS products running in the stable operation for many years, has been validated by the time, many extent, prolong the use time