#define Si4709_IOC_SEEK_CANCEL _IO(Si4709_IOC_MAGIC, 26)/*VNVS:START 13-OCT'09---- Added IOCTLs for reading the device-id,chip-id,power configuration, system configuration2 registers*/
#define Si4709_IOC_AFCRL_GET _IOR(Si4709_IOC_MAGIC,31,u8) /*For reading AFCRL bit, to check for a valid channel*/
#define Si4709_IOC_DE_SET _IOW(Si4709_IOC_MAGIC,32,uint8_t) /*Setting DE-emphasis Time Constant. For DE=0,TC=50us(Europe,Japan,Australia) and DE=1,TC=75us(USA)*/