diff --git a/ctru-rs/examples/camera-image.rs b/ctru-rs/examples/camera-image.rs
index 52728be..b277679 100644
--- a/ctru-rs/examples/camera-image.rs
+++ b/ctru-rs/examples/camera-image.rs
@@ -107,7 +107,8 @@ fn main() {
 }
 
 fn take_picture(cam: &mut Cam, buf: &mut [u8]) {
-    let buf_size = cam.get_max_bytes(WIDTH as i16, HEIGHT as i16)
+    let buf_size = cam
+        .get_max_bytes(WIDTH as i16, HEIGHT as i16)
         .expect("Failed to get max bytes");
 
     cam.set_transfer_bytes(CamPort::PORT_BOTH, buf_size, WIDTH as i16, HEIGHT as i16)
@@ -116,7 +117,6 @@ fn take_picture(cam: &mut Cam, buf: &mut [u8]) {
     cam.activate(CamSelect::SELECT_OUT1_OUT2)
         .expect("Failed to activate camera");
 
-
     cam.clear_buffer(CamPort::PORT_BOTH)
         .expect("Failed to clear buffer");
     cam.synchronize_vsync_timing(CamSelect::SELECT_OUT1, CamSelect::SELECT_OUT2)
@@ -125,21 +125,18 @@ fn take_picture(cam: &mut Cam, buf: &mut [u8]) {
     cam.start_capture(CamPort::PORT_BOTH)
         .expect("Failed to start capture");
 
-    let receive_event = cam.set_receiving(
-        buf,
-        CamPort::PORT_CAM1,
-        SCREEN_SIZE as u32,
-        buf_size as i16,
-    )
-    .expect("Failed to set receiving");
+    let receive_event = cam
+        .set_receiving(buf, CamPort::PORT_CAM1, SCREEN_SIZE as u32, buf_size as i16)
+        .expect("Failed to set receiving");
 
-    let receive_event2 = cam.set_receiving(
-        &mut buf[SCREEN_SIZE..],
-        CamPort::PORT_CAM2,
-        SCREEN_SIZE as u32,
-        buf_size as i16,
-    )
-    .expect("Failed to set receiving");
+    let receive_event2 = cam
+        .set_receiving(
+            &mut buf[SCREEN_SIZE..],
+            CamPort::PORT_CAM2,
+            SCREEN_SIZE as u32,
+            buf_size as i16,
+        )
+        .expect("Failed to set receiving");
 
     unsafe {
         let mut r = ctru_sys::svcWaitSynchronization(receive_event, WAIT_TIMEOUT);
@@ -172,14 +169,14 @@ fn take_picture(cam: &mut Cam, buf: &mut [u8]) {
 
 fn write_picture_to_frame_buffer_rgb_565(
     fb: RawFrameBuffer,
-    img: &mut [u8],
+    img: &[u8],
     x: u16,
     y: u16,
     width: u16,
     height: u16,
 ) {
     let fb_8 = fb.ptr;
-    let img_16 = img.as_mut_ptr() as *mut u16;
+    let img_16 = img.as_ptr() as *const u16;
     let mut draw_x;
     let mut draw_y;
     for j in 0..height {
diff --git a/ctru-rs/src/services/cam.rs b/ctru-rs/src/services/cam.rs
index 180cc59..b2a757b 100644
--- a/ctru-rs/src/services/cam.rs
+++ b/ctru-rs/src/services/cam.rs
@@ -266,10 +266,7 @@ impl Cam {
         }
     }
 
-    pub fn get_buffer_error_interrupt_event(
-        &self,
-        port: CamPort,
-    ) -> crate::Result<u32> {
+    pub fn get_buffer_error_interrupt_event(&self, port: CamPort) -> crate::Result<u32> {
         unsafe {
             let mut event: Handle = 0;
             let r = ctru_sys::CAMU_GetBufferErrorInterruptEvent(&mut event, port.bits());
@@ -305,10 +302,7 @@ impl Cam {
         }
     }
 
-    pub fn is_finished_receiving(
-        &self,
-        port: CamPort,
-    ) -> crate::Result<bool> {
+    pub fn is_finished_receiving(&self, port: CamPort) -> crate::Result<bool> {
         unsafe {
             let mut finished_receiving = false;
             let r = ctru_sys::CAMU_IsFinishedReceiving(&mut finished_receiving, port.bits());
@@ -419,7 +413,13 @@ impl Cam {
         params: CamTrimmingParams,
     ) -> crate::Result<()> {
         unsafe {
-            let r = ctru_sys::CAMU_SetTrimmingParams(port.bits(), params.x_start, params.y_start, params.x_end, params.y_end);
+            let r = ctru_sys::CAMU_SetTrimmingParams(
+                port.bits(),
+                params.x_start,
+                params.y_start,
+                params.x_end,
+                params.y_end,
+            );
             if r < 0 {
                 Err(r.into())
             } else {
@@ -428,24 +428,27 @@ impl Cam {
         }
     }
 
-    pub fn get_trimming_params(
-        &self,
-        port: CamPort,
-    ) -> crate::Result<CamTrimmingParams> {
+    pub fn get_trimming_params(&self, port: CamPort) -> crate::Result<CamTrimmingParams> {
         unsafe {
             let mut x_start = 0;
             let mut y_start = 0;
             let mut x_end = 0;
             let mut y_end = 0;
-            let r = ctru_sys::CAMU_GetTrimmingParams(&mut x_start, &mut y_start, &mut x_end, &mut y_end, port.bits());
+            let r = ctru_sys::CAMU_GetTrimmingParams(
+                &mut x_start,
+                &mut y_start,
+                &mut x_end,
+                &mut y_end,
+                port.bits(),
+            );
             if r < 0 {
                 Err(r.into())
             } else {
-                Ok(CamTrimmingParams{
+                Ok(CamTrimmingParams {
                     x_start,
                     y_start,
                     x_end,
-                    y_end
+                    y_end,
                 })
             }
         }
@@ -561,12 +564,9 @@ impl Cam {
         }
     }
 
-    pub fn is_auto_exposure(
-        &self,
-        camera: CamSelect,
-    ) -> crate::Result<bool> {
+    pub fn is_auto_exposure(&self, camera: CamSelect) -> crate::Result<bool> {
         unsafe {
-            let mut is_auto_exposure= false;
+            let mut is_auto_exposure = false;
             let r = ctru_sys::CAMU_IsAutoExposure(&mut is_auto_exposure, camera.bits());
             if r < 0 {
                 Err(r.into())
@@ -587,10 +587,7 @@ impl Cam {
         }
     }
 
-    pub fn is_auto_white_balance(
-        &self,
-        camera: CamSelect,
-    ) -> crate::Result<bool> {
+    pub fn is_auto_white_balance(&self, camera: CamSelect) -> crate::Result<bool> {
         unsafe {
             let mut is_auto_white_balance = false;
             let r = ctru_sys::CAMU_IsAutoWhiteBalance(&mut is_auto_white_balance, camera.bits());
@@ -806,11 +803,7 @@ impl Cam {
         }
     }
 
-    pub fn get_latest_vsync_timing(
-        &self,
-        port: CamPort,
-        past: u32,
-    ) -> crate::Result<i64> {
+    pub fn get_latest_vsync_timing(&self, port: CamPort, past: u32) -> crate::Result<i64> {
         let mut timing = 0;
         unsafe {
             let r = ctru_sys::CAMU_GetLatestVsyncTiming(&mut timing, port.bits(), past);
@@ -849,11 +842,7 @@ impl Cam {
         }
     }
 
-    pub fn read_register_i2c_exclusive(
-        &self,
-        camera: CamSelect,
-        addr: u16,
-    ) -> crate::Result<u16> {
+    pub fn read_register_i2c_exclusive(&self, camera: CamSelect, addr: u16) -> crate::Result<u16> {
         unsafe {
             let mut data = 0;
             let r = ctru_sys::CAMU_ReadRegisterI2cExclusive(&mut data, camera.bits(), addr);
@@ -881,7 +870,10 @@ impl Cam {
         }
     }
 
-    pub fn set_image_quality_calibration_data(&self, data: ImageQualityCalibrationData) -> crate::Result<()> {
+    pub fn set_image_quality_calibration_data(
+        &self,
+        data: ImageQualityCalibrationData,
+    ) -> crate::Result<()> {
         unsafe {
             let r = ctru_sys::CAMU_SetImageQualityCalibrationData(data.0);
             if r < 0 {
@@ -904,7 +896,10 @@ impl Cam {
         }
     }
 
-    pub fn set_package_parameter_without_context(&self, param: PackageParameterCameraSelect) -> crate::Result<()> {
+    pub fn set_package_parameter_without_context(
+        &self,
+        param: PackageParameterCameraSelect,
+    ) -> crate::Result<()> {
         unsafe {
             let r = ctru_sys::CAMU_SetPackageParameterWithoutContext(param.0);
             if r < 0 {
@@ -915,7 +910,10 @@ impl Cam {
         }
     }
 
-    pub fn set_package_parameter_with_context(&self, param: PackageParameterContext) -> crate::Result<()> {
+    pub fn set_package_parameter_with_context(
+        &self,
+        param: PackageParameterContext,
+    ) -> crate::Result<()> {
         unsafe {
             let r = ctru_sys::CAMU_SetPackageParameterWithContext(param.0);
             if r < 0 {
@@ -926,7 +924,10 @@ impl Cam {
         }
     }
 
-    pub fn set_package_parameter_with_context_detail(&self, param: PackageParameterContextDetail) -> crate::Result<()> {
+    pub fn set_package_parameter_with_context_detail(
+        &self,
+        param: PackageParameterContextDetail,
+    ) -> crate::Result<()> {
         unsafe {
             let r = ctru_sys::CAMU_SetPackageParameterWithContextDetail(param.0);
             if r < 0 {