sd_attr 600 drivers/hwmon/ina3221.c struct sensor_device_attribute *sd_attr = to_sensor_dev_attr(attr); sd_attr 602 drivers/hwmon/ina3221.c unsigned int channel = sd_attr->index; sd_attr 612 drivers/hwmon/ina3221.c struct sensor_device_attribute *sd_attr = to_sensor_dev_attr(attr); sd_attr 614 drivers/hwmon/ina3221.c unsigned int channel = sd_attr->index;