diff --git a/src/config/handler.rs b/src/config/handler.rs
index 8a5e4b55..75a1c336 100644
--- a/src/config/handler.rs
+++ b/src/config/handler.rs
@@ -798,7 +798,7 @@ impl ConfigProxyHandler {
         left_handed: bool,
     ) -> Result<(), CphError> {
         let dev = self.get_device_handler_data(device)?;
-        dev.device.set_left_handed(left_handed);
+        dev.set_left_handed(left_handed);
         Ok(())
     }
 
@@ -813,31 +813,31 @@ impl ConfigProxyHandler {
             ACCEL_PROFILE_ADAPTIVE => InputDeviceAccelProfile::Adaptive,
             _ => return Err(CphError::UnknownAccelProfile(accel_profile)),
         };
-        dev.device.set_accel_profile(profile);
+        dev.set_accel_profile(profile);
         Ok(())
     }
 
     fn handle_set_accel_speed(&self, device: InputDevice, speed: f64) -> Result<(), CphError> {
         let dev = self.get_device_handler_data(device)?;
-        dev.device.set_accel_speed(speed);
+        dev.set_accel_speed(speed);
         Ok(())
     }
 
     fn handle_set_px_per_wheel_scroll(&self, device: InputDevice, px: f64) -> Result<(), CphError> {
         let dev = self.get_device_handler_data(device)?;
-        dev.px_per_scroll_wheel.set(px);
+        dev.set_px_per_scroll_wheel(px);
         Ok(())
     }
 
     fn handle_set_tap_enabled(&self, device: InputDevice, enabled: bool) -> Result<(), CphError> {
         let dev = self.get_device_handler_data(device)?;
-        dev.device.set_tap_enabled(enabled);
+        dev.set_tap_enabled(enabled);
         Ok(())
     }
 
     fn handle_set_drag_enabled(&self, device: InputDevice, enabled: bool) -> Result<(), CphError> {
         let dev = self.get_device_handler_data(device)?;
-        dev.device.set_drag_enabled(enabled);
+        dev.set_drag_enabled(enabled);
         Ok(())
     }
 
@@ -847,7 +847,7 @@ impl ConfigProxyHandler {
         enabled: bool,
     ) -> Result<(), CphError> {
         let dev = self.get_device_handler_data(device)?;
-        dev.device.set_natural_scrolling_enabled(enabled);
+        dev.set_natural_scrolling_enabled(enabled);
         Ok(())
     }
 
@@ -857,7 +857,7 @@ impl ConfigProxyHandler {
         enabled: bool,
     ) -> Result<(), CphError> {
         let dev = self.get_device_handler_data(device)?;
-        dev.device.set_drag_lock_enabled(enabled);
+        dev.set_drag_lock_enabled(enabled);
         Ok(())
     }
 
@@ -867,7 +867,7 @@ impl ConfigProxyHandler {
         matrix: [[f64; 2]; 2],
     ) -> Result<(), CphError> {
         let dev = self.get_device_handler_data(device)?;
-        dev.device.set_transform_matrix(matrix);
+        dev.set_transform_matrix(matrix);
         Ok(())
     }
 
@@ -877,7 +877,7 @@ impl ConfigProxyHandler {
         matrix: [[f32; 3]; 2],
     ) -> Result<(), CphError> {
         let dev = self.get_device_handler_data(device)?;
-        dev.device.set_calibration_matrix(matrix);
+        dev.set_calibration_matrix(matrix);
         Ok(())
     }
 
@@ -893,7 +893,7 @@ impl ConfigProxyHandler {
             CLICK_METHOD_CLICKFINGER => InputDeviceClickMethod::Clickfinger,
             _ => return Err(CphError::UnknownClickMethod(click_method)),
         };
-        dev.device.set_click_method(method);
+        dev.set_click_method(method);
         Ok(())
     }
 
@@ -903,7 +903,7 @@ impl ConfigProxyHandler {
         enabled: bool,
     ) -> Result<(), CphError> {
         let dev = self.get_device_handler_data(device)?;
-        dev.device.set_middle_button_emulation_enabled(enabled);
+        dev.set_middle_button_emulation_enabled(enabled);
         Ok(())
     }
 
diff --git a/src/ifs/jay_input.rs b/src/ifs/jay_input.rs
index 51db496c..ec64cfdf 100644
--- a/src/ifs/jay_input.rs
+++ b/src/ifs/jay_input.rs
@@ -308,7 +308,7 @@ impl JayInputRequestHandler for JayInput {
                 LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE => InputDeviceAccelProfile::Adaptive,
                 _ => return Err(JayInputError::UnknownAccelerationProfile(req.profile)),
             };
-            dev.device.set_accel_profile(profile);
+            dev.set_accel_profile(profile);
             Ok(())
         })
     }
@@ -316,7 +316,7 @@ impl JayInputRequestHandler for JayInput {
     fn set_accel_speed(&self, req: SetAccelSpeed, _slf: &Rc<Self>) -> Result<(), Self::Error> {
         self.or_error(|| {
             let dev = self.device(req.id)?;
-            dev.device.set_accel_speed(req.speed);
+            dev.set_accel_speed(req.speed);
             Ok(())
         })
     }
@@ -324,7 +324,7 @@ impl JayInputRequestHandler for JayInput {
     fn set_tap_enabled(&self, req: SetTapEnabled, _slf: &Rc<Self>) -> Result<(), Self::Error> {
         self.or_error(|| {
             let dev = self.device(req.id)?;
-            dev.device.set_tap_enabled(req.enabled != 0);
+            dev.set_tap_enabled(req.enabled != 0);
             Ok(())
         })
     }
@@ -336,7 +336,7 @@ impl JayInputRequestHandler for JayInput {
     ) -> Result<(), Self::Error> {
         self.or_error(|| {
             let dev = self.device(req.id)?;
-            dev.device.set_drag_enabled(req.enabled != 0);
+            dev.set_drag_enabled(req.enabled != 0);
             Ok(())
         })
     }
@@ -348,7 +348,7 @@ impl JayInputRequestHandler for JayInput {
     ) -> Result<(), Self::Error> {
         self.or_error(|| {
             let dev = self.device(req.id)?;
-            dev.device.set_drag_lock_enabled(req.enabled != 0);
+            dev.set_drag_lock_enabled(req.enabled != 0);
             Ok(())
         })
     }
@@ -356,7 +356,7 @@ impl JayInputRequestHandler for JayInput {
     fn set_left_handed(&self, req: SetLeftHanded, _slf: &Rc<Self>) -> Result<(), Self::Error> {
         self.or_error(|| {
             let dev = self.device(req.id)?;
-            dev.device.set_left_handed(req.enabled != 0);
+            dev.set_left_handed(req.enabled != 0);
             Ok(())
         })
     }
@@ -368,7 +368,7 @@ impl JayInputRequestHandler for JayInput {
     ) -> Result<(), Self::Error> {
         self.or_error(|| {
             let dev = self.device(req.id)?;
-            dev.device.set_natural_scrolling_enabled(req.enabled != 0);
+            dev.set_natural_scrolling_enabled(req.enabled != 0);
             Ok(())
         })
     }
@@ -380,7 +380,7 @@ impl JayInputRequestHandler for JayInput {
     ) -> Result<(), Self::Error> {
         self.or_error(|| {
             let dev = self.device(req.id)?;
-            dev.px_per_scroll_wheel.set(req.px);
+            dev.set_px_per_scroll_wheel(req.px);
             Ok(())
         })
     }
@@ -392,8 +392,7 @@ impl JayInputRequestHandler for JayInput {
     ) -> Result<(), Self::Error> {
         self.or_error(|| {
             let dev = self.device(req.id)?;
-            dev.device
-                .set_transform_matrix([[req.m11, req.m12], [req.m21, req.m22]]);
+            dev.set_transform_matrix([[req.m11, req.m12], [req.m21, req.m22]]);
             Ok(())
         })
     }
@@ -507,8 +506,7 @@ impl JayInputRequestHandler for JayInput {
     ) -> Result<(), Self::Error> {
         self.or_error(|| {
             let dev = self.device(req.id)?;
-            dev.device
-                .set_calibration_matrix([[req.m00, req.m01, req.m02], [req.m10, req.m11, req.m12]]);
+            dev.set_calibration_matrix([[req.m00, req.m01, req.m02], [req.m10, req.m11, req.m12]]);
             Ok(())
         })
     }
@@ -522,7 +520,7 @@ impl JayInputRequestHandler for JayInput {
                 LIBINPUT_CONFIG_CLICK_METHOD_CLICKFINGER => InputDeviceClickMethod::Clickfinger,
                 _ => return Err(JayInputError::UnknownClickMethod(req.method)),
             };
-            dev.device.set_click_method(method);
+            dev.set_click_method(method);
             Ok(())
         })
     }
@@ -534,8 +532,7 @@ impl JayInputRequestHandler for JayInput {
     ) -> Result<(), Self::Error> {
         self.or_error(|| {
             let dev = self.device(req.id)?;
-            dev.device
-                .set_middle_button_emulation_enabled(req.enabled != 0);
+            dev.set_middle_button_emulation_enabled(req.enabled != 0);
             Ok(())
         })
     }
diff --git a/src/ifs/wl_seat.rs b/src/ifs/wl_seat.rs
index e3f930e0..3ed9153d 100644
--- a/src/ifs/wl_seat.rs
+++ b/src/ifs/wl_seat.rs
@@ -24,7 +24,9 @@ pub mod zwp_virtual_keyboard_v1;
 use {
     crate::{
         async_engine::SpawnedFuture,
-        backend::{ButtonState, Leds},
+        backend::{
+            ButtonState, InputDeviceAccelProfile, InputDeviceClickMethod, Leds, TransformMatrix,
+        },
         client::{Client, ClientError, ClientId},
         cursor_user::{CursorUser, CursorUserGroup, CursorUserOwner},
         ei::ei_ifs::ei_seat::EiSeat,
@@ -1860,6 +1862,54 @@ impl DeviceHandlerData {
         }
         state.root.extents.get()
     }
+
+    pub fn set_accel_profile(&self, v: InputDeviceAccelProfile) {
+        self.device.set_accel_profile(v);
+    }
+
+    pub fn set_accel_speed(&self, v: f64) {
+        self.device.set_accel_speed(v);
+    }
+
+    pub fn set_tap_enabled(&self, v: bool) {
+        self.device.set_tap_enabled(v);
+    }
+
+    pub fn set_drag_enabled(&self, v: bool) {
+        self.device.set_drag_enabled(v);
+    }
+
+    pub fn set_drag_lock_enabled(&self, v: bool) {
+        self.device.set_drag_lock_enabled(v);
+    }
+
+    pub fn set_left_handed(&self, v: bool) {
+        self.device.set_left_handed(v);
+    }
+
+    pub fn set_natural_scrolling_enabled(&self, v: bool) {
+        self.device.set_natural_scrolling_enabled(v);
+    }
+
+    pub fn set_px_per_scroll_wheel(&self, v: f64) {
+        self.px_per_scroll_wheel.set(v);
+    }
+
+    pub fn set_transform_matrix(&self, v: TransformMatrix) {
+        self.device.set_transform_matrix(v);
+    }
+
+    pub fn set_calibration_matrix(&self, v: [[f32; 3]; 2]) {
+        self.device.set_calibration_matrix(v);
+    }
+
+    pub fn set_click_method(&self, v: InputDeviceClickMethod) {
+        self.device.set_click_method(v);
+    }
+
+    pub fn set_middle_button_emulation_enabled(&self, v: bool) {
+        self.device.set_middle_button_emulation_enabled(v);
+    }
 }
 
 impl LedsListener for DeviceHandlerData {