diff --git a/src/bin/steamosctl.rs b/src/bin/steamosctl.rs
index 8f8f6ae..f697b2b 100644
--- a/src/bin/steamosctl.rs
+++ b/src/bin/steamosctl.rs
@@ -9,6 +9,7 @@ use anyhow::Result;
 use clap::{Parser, Subcommand};
 use itertools::Itertools;
 use std::ops::Deref;
+use steamos_manager::power::GPUPerformanceLevel;
 use steamos_manager::proxy::ManagerProxy;
 use steamos_manager::wifi::WifiBackend;
 use zbus::fdo::PropertiesProxy;
@@ -44,8 +45,8 @@ enum Commands {
 
     /// Set the GPU performance level
     SetGPUPerformanceLevel {
-        /// 0 = Auto, 1 = Low, 2 = High, 3 = Manual, 4 = Profile Peak
-        level: u32,
+        /// Allowed levels are auto, low, high, manual, peak_performance
+        level: GPUPerformanceLevel,
     },
 
     /// Get the GPU performance level
@@ -182,11 +183,14 @@ async fn main() -> Result<()> {
             proxy.set_fan_control_state(*state).await?;
         }
         Commands::SetGPUPerformanceLevel { level } => {
-            proxy.set_gpu_performance_level(*level).await?;
+            proxy.set_gpu_performance_level(*level as u32).await?;
         }
         Commands::GetGPUPerformanceLevel => {
             let level = proxy.gpu_performance_level().await?;
-            println!("GPU performance level: {level}");
+            match GPUPerformanceLevel::try_from(level) {
+                Ok(l) => println!("GPU performance level: {}", l.to_string()),
+                Err(_) => println!("Got unknown value {level} from backend"),
+            }
         }
         Commands::SetManualGPUClock { freq } => {
             proxy.set_manual_gpu_clock(*freq).await?;
diff --git a/src/lib.rs b/src/lib.rs
index 5eb2206..d8dcb60 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -19,12 +19,12 @@ mod ds_inhibit;
 mod error;
 mod hardware;
 mod manager;
-mod power;
 mod process;
 mod sls;
 mod systemd;
 
 pub mod daemon;
+pub mod power;
 pub mod proxy;
 pub mod wifi;
 
diff --git a/src/power.rs b/src/power.rs
index 03cd43c..a514c75 100644
--- a/src/power.rs
+++ b/src/power.rs
@@ -75,7 +75,7 @@ impl ToString for GPUPerformanceLevel {
     }
 }
 
-pub async fn get_gpu_performance_level() -> Result<GPUPerformanceLevel> {
+pub(crate) async fn get_gpu_performance_level() -> Result<GPUPerformanceLevel> {
     let base = find_hwmon().await?;
     let level = fs::read_to_string(base.join(GPU_PERFORMANCE_LEVEL_SUFFIX))
         .await
@@ -84,7 +84,7 @@ pub async fn get_gpu_performance_level() -> Result<GPUPerformanceLevel> {
     GPUPerformanceLevel::from_str(level.trim())
 }
 
-pub async fn set_gpu_performance_level(level: GPUPerformanceLevel) -> Result<()> {
+pub(crate) async fn set_gpu_performance_level(level: GPUPerformanceLevel) -> Result<()> {
     let level: String = level.to_string();
     let base = find_hwmon().await?;
     write_synced(base.join(GPU_PERFORMANCE_LEVEL_SUFFIX), level.as_bytes())
@@ -92,7 +92,7 @@ pub async fn set_gpu_performance_level(level: GPUPerformanceLevel) -> Result<()>
         .inspect_err(|message| error!("Error writing to sysfs file: {message}"))
 }
 
-pub async fn set_gpu_clocks(clocks: u32) -> Result<()> {
+pub(crate) async fn set_gpu_clocks(clocks: u32) -> Result<()> {
     // Set GPU clocks to given value valid between 200 - 1600
     // Only used when GPU Performance Level is manual, but write whenever called.
     ensure!((200..=1600).contains(&clocks), "Invalid clocks");
@@ -125,7 +125,7 @@ pub async fn set_gpu_clocks(clocks: u32) -> Result<()> {
     Ok(())
 }
 
-pub async fn get_gpu_clocks() -> Result<u32> {
+pub(crate) async fn get_gpu_clocks() -> Result<u32> {
     let base = find_hwmon().await?;
     let clocks_file = File::open(base.join(GPU_CLOCKS_SUFFIX)).await?;
     let mut reader = BufReader::new(clocks_file);
@@ -170,14 +170,14 @@ async fn find_hwmon() -> Result<PathBuf> {
     }
 }
 
-pub async fn get_tdp_limit() -> Result<u32> {
+pub(crate) async fn get_tdp_limit() -> Result<u32> {
     let base = find_hwmon().await?;
     let power1cap = fs::read_to_string(base.join(TDP_LIMIT1)).await?;
     let power1cap: u32 = power1cap.trim_end().parse()?;
     Ok(power1cap / 1000000)
 }
 
-pub async fn set_tdp_limit(limit: u32) -> Result<()> {
+pub(crate) async fn set_tdp_limit(limit: u32) -> Result<()> {
     // Set TDP limit given if within range (3-15)
     // Returns false on error or out of range
     ensure!((3..=15).contains(&limit), "Invalid limit");
@@ -201,7 +201,7 @@ pub async fn set_tdp_limit(limit: u32) -> Result<()> {
 }
 
 #[cfg(test)]
-pub mod test {
+pub(crate) mod test {
     use super::*;
     use crate::testing;
     use anyhow::anyhow;