Documentation/hwmon/hwmon-kernel-api.rst

63 as well as all sysfs attributes attached to the hwmon device.
73 attributes in the hardware monitoring core, letting the driver focus on reading
74 from and writing to the chip instead of having to bother with sysfs attributes.
149     is optional, but must be provided if any readable attributes exist.
153     optional, but must be provided if any writeable attributes exist.
171      hwmon_chip		A virtual sensor type, used to describe attributes
186     describing the attributes supposed by a single sensor.
250 HWMON_C_xxxx	Chip attributes, for use with hwmon_chip.
251 HWMON_T_xxxx	Temperature attributes, for use with hwmon_temp.
252 HWMON_I_xxxx	Voltage attributes, for use with hwmon_in.
253 HWMON_C_xxxx	Current attributes, for use with hwmon_curr.
254 		Notice the prefix overlap with chip attributes.
255 HWMON_P_xxxx	Power attributes, for use with hwmon_power.
256 HWMON_E_xxxx	Energy attributes, for use with hwmon_energy.
257 HWMON_H_xxxx	Humidity attributes, for use with hwmon_humidity.
258 HWMON_F_xxxx	Fan speed attributes, for use with hwmon_fan.
259 HWMON_PWM_xxxx	PWM control attributes, for use with hwmon_pwm.
335 Driver-provided sysfs attributes
340 it is most likely not necessary to provide sysfs attributes. Only additional
341 non-standard sysfs attributes need to be provided when one of those registration
345 declare and use hardware monitoring sysfs attributes.
348 DEVICE_ATTR_{RW,RO,WO} to declare such attributes. This is feasible if an
353 SENSOR_DEVICE_ATTR and SENSOR_DEVICE_ATTR_2 can be used to define attributes