简单的linux字符驱动，包括对ds18b20温度传感器的操作，对六轴陀螺仪mpu6050和电子罗盘hmc5883l的i2c协议的实现,是初学者的绝佳材料-Simple linux character-driven, including ds18b20 temperature sensor, the operation of the six-axis gyro electronic compass hmc5883l mpu6050 and implementation of i2c protoc