tda7540_ioctl_cmd.h

来自「基于tda7540芯片的FM芯片」· C头文件 代码 · 共 7 行

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#include <linux/ioctl.h>#define TDA7540_MAGIC 'k'#define TDA7540_INIT                 _IO(TDA7540_MAGIC, 1)#define TDA7540_SET_FREQ             _IOW(TDA7540_MAGIC,2,int)#define TDA7540_GET_FREQ             _IOR(TDA7540_MAGIC,3,int)

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