i2c_readreg
dprintk(1, "saa7113 status=%02x\n", i2c_readreg(&budget->i2c_adap, 0x4a, 0x1f));
int subtype = i2c_readreg(&budget->i2c_adap, 0x50, 0x67);
if (i2c_readreg(av7110, 0xaa, 0) == 0x4f && i2c_readreg(av7110, 0xaa, 1) == 0x45) {
u8 flags = i2c_readreg(av7110, 0xaa, 2);
u8 i2c_readreg(struct av7110 *av7110, u8 id, u8 reg);