1 /* 2 * Header file for audio drivers 3 */ 4 #include "ntp_types.h" 5 6 #define MAXGAIN 255 /* max codec gain */ 7 #define MONGAIN 127 /* codec monitor gain */ 8 9 /* 10 * Function prototypes 11 */ 12 int audio_init (const char *, int, int); 13 int audio_gain (int, int, int); 14 void audio_show (void); 15