i2c出现0x04异常设备信号

hongda

参考touch_screen_drv.c文件在低功耗处理过程的suspend和resume过程中保存和还原保存寄存器的操作。
void touch suspend for i2c(void){
i2c_save_reg(TOUCH I2C BUS);}
void touch_resume_for _i2c(void){
i2c recovery reg(ToucH I2c BUs);}