1#ifndef __INCLUDED_TEA6420__ 2#define __INCLUDED_TEA6420__ 3 4/* possible addresses */ 5#define I2C_ADDR_TEA6420_1 0x4c 6#define I2C_ADDR_TEA6420_2 0x4d 7 8struct tea6420_multiplex 9{ 10 int in; /* input of audio switch */ 11 int out; /* output of audio switch */ 12 int gain; /* gain of connection */ 13}; 14 15#define TEA6420_SWITCH _IOW('v',1,struct tea6420_multiplex) 16 17#endif 18