Report mag data

src/drivers/mpu9250/mag.cpp

@@ -292,9 +292,10 @@ MPU9250_mag::measure(struct ak8963_regs data)
 	mrb.x = ((xraw_f * _mag_range_scale * _mag_asa_x) - _mag_scale.x_offset) * _mag_scale.x_scale;
 	mrb.y = ((yraw_f * _mag_range_scale * _mag_asa_y) - _mag_scale.y_offset) * _mag_scale.y_scale;
 	mrb.z = ((zraw_f * _mag_range_scale * _mag_asa_z) - _mag_scale.z_offset) * _mag_scale.z_scale;
-	mrb.range_ga = (float)48.0;
+	mrb.range_ga = 48.0f;
 	mrb.scaling = _mag_range_scale;
 	mrb.temperature = _parent->_last_temperature;
+	mrb.device_id = _parent->get_device_id().devid;
 
 	mrb.error_count = perf_event_count(_mag_errors);