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#ifndef __INCLUDED_TDA9840__
#define __INCLUDED_TDA9840__
#define I2C_TDA9840 0x42
#define TDA9840_DETECT _IOR('v',1,int)
/* return values for TDA9840_DETCT */
#define TDA9840_MONO_DETECT 0x0
#define TDA9840_DUAL_DETECT 0x1
#define TDA9840_STEREO_DETECT 0x2
#define TDA9840_INCORRECT_DETECT 0x3
#define TDA9840_SWITCH _IOW('v',2,int)
/* modes than can be set with TDA9840_SWITCH */
#define TDA9840_SET_MUTE 0x00
#define TDA9840_SET_MONO 0x10
#define TDA9840_SET_STEREO 0x2a
#define TDA9840_SET_LANG1 0x12
#define TDA9840_SET_LANG2 0x1e
#define TDA9840_SET_BOTH 0x1a
#define TDA9840_SET_BOTH_R 0x16
#define TDA9840_SET_EXTERNAL 0x7a
/* values may range between +2.5 and -2.0;
the value has to be multiplied with 10 */
#define TDA9840_LEVEL_ADJUST _IOW('v',3,int)
/* values may range between +2.5 and -2.4;
the value has to be multiplied with 10 */
#define TDA9840_STEREO_ADJUST _IOW('v',4,int)
/* currently not implemented */
#define TDA9840_TEST _IOW('v',5,int)
#endif