feat: add set fan control policy function (#91)

Add set_fan_control_policy function, and fix FanControlPolicy try_from from #77

Author: Dreamacro

nvml-wrapper/src/device.rs

@@ -1900,6 +1900,35 @@ impl<'nvml> Device<'nvml> {
         }
     }
 
+    /**
+    Sets fan control policy.
+
+    You can determine valid fan indices using [`Self::num_fans()`].
+
+    # Errors
+
+    * `Uninitialized`, if the library has not been successfully initialized
+    * `InvalidArg`, if this `Device` is invalid or `fan_idx` is invalid
+    * `NotSupported`, if this `Device` does not have a fan
+    * `GpuLost`, if this `Device` has fallen off the bus or is otherwise inaccessible
+    * `UnexpectedVariant`, for which you can read the docs for
+    * `Unknown`, on any unexpected error
+
+    # Device Support
+
+    Supports Maxwell or newer fully supported discrete devices with fans.
+     */
+    #[doc(alias = "nvmlDeviceSetFanControlPolicy")]
+    pub fn set_fan_control_policy(
+        &mut self,
+        fan_idx: u32,
+        policy: FanControlPolicy,
+    ) -> Result<(), NvmlError> {
+        let sym = nvml_sym(self.nvml.lib.nvmlDeviceSetFanControlPolicy.as_ref())?;
+
+        unsafe { nvml_try(sym(self.device, fan_idx, policy.as_c())) }
+    }
+
     /**
     Sets the speed of a specified fan.
 

nvml-wrapper/src/enums/device.rs

@@ -376,7 +376,7 @@ impl TryFrom<nvmlFanControlPolicy_t> for FanControlPolicy {
     fn try_from(value: nvmlFanControlPolicy_t) -> Result<Self, Self::Error> {
         match value {
             NVML_FAN_POLICY_TEMPERATURE_CONTINOUS_SW => Ok(Self::TemperatureContinousSw),
-            NVML_FAN_POLICY_MANUAL => Ok(Self::TemperatureContinousSw),
+            NVML_FAN_POLICY_MANUAL => Ok(Self::Manual),
             _ => Err(NvmlError::UnexpectedVariant(value)),
         }
     }

nvml-wrapper/unwrapped_functions.txt

@@ -90,7 +90,6 @@ nvmlDevicePowerSmoothingSetState
 nvmlDevicePowerSmoothingUpdatePresetProfileParam
 nvmlDeviceSetConfComputeUnprotectedMemSize
 nvmlDeviceSetDramEncryptionMode
-nvmlDeviceSetFanControlPolicy
 nvmlDeviceSetMigMode
 nvmlDeviceSetNvlinkBwMode
 nvmlDeviceSetNvLinkDeviceLowPowerThreshold