i2c_read_reg16
res = i2c_read_reg16(i2c, adr, 0x8000 | address, &val);
if (i2c_read_reg16(&port->i2c->adap, 0x69, 0xf100, &val) < 0)
if (i2c_read_reg16(&port->i2c->adap, 0x68, 0xf100, id) < 0)
if (i2c_read_reg16(&port->i2c->adap, 0x1e, 0xf000, &val) < 0)
if (i2c_read_reg16(&port->i2c->adap, 0x1f, 0xf000, &val) < 0)
if (i2c_read_reg16(i2c, 0x68+port/2, 0xf100, &val) < 0)
if (i2c_read_reg16(i2c, 0x1e, 0xf000, &val) < 0)
if (i2c_read_reg16(i2c, 0x1f, 0xf000, &val) < 0)