+the fan to the user space through the hwmon sysfs interface.
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
-@@ -1346,6 +1346,17 @@ config SENSORS_RASPBERRYPI_HWMON
+@@ -1356,6 +1356,17 @@ config SENSORS_RASPBERRYPI_HWMON
This driver can also be built as a module. If so, the module
will be called raspberrypi-hwmon.
depends on GPIOLIB || COMPILE_TEST
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
-@@ -144,6 +144,7 @@ obj-$(CONFIG_SENSORS_PCF8591) += pcf8591
+@@ -145,6 +145,7 @@ obj-$(CONFIG_SENSORS_PCF8591) += pcf8591
obj-$(CONFIG_SENSORS_POWR1220) += powr1220.o
obj-$(CONFIG_SENSORS_PWM_FAN) += pwm-fan.o
obj-$(CONFIG_SENSORS_RASPBERRYPI_HWMON) += raspberrypi-hwmon.o