diff --git a/src/epd4in2/mod.rs b/src/epd4in2/mod.rs
index fbddc57..d8dbdf3 100644
--- a/src/epd4in2/mod.rs
+++ b/src/epd4in2/mod.rs
@@ -196,12 +196,12 @@ where
         &mut self, 
         spi: &mut SPI,        
         buffer: &[u8],
-        x: u16,
-        y: u16,
-        width: u16,
-        height: u16,
+        x: u32,
+        y: u32,
+        width: u32,
+        height: u32,
     ) -> Result<(), SPI::Error> {
-        if buffer.len() as u16 != width / 8 * height {
+        if buffer.len() as u32 != width / 8 * height {
             //TODO: panic!! or sth like that
             //return Err("Wrong buffersize");
         }
diff --git a/src/graphics.rs b/src/graphics.rs
index a477985..10fc30d 100644
--- a/src/graphics.rs
+++ b/src/graphics.rs
@@ -28,10 +28,10 @@ pub trait Display {
 }
 
 pub struct Graphics<'a> {
-    pub(crate) width: u32,
-    pub(crate) height: u32,
-    pub(crate) rotation: DisplayRotation,
-    pub(crate) buffer: &'a mut [u8], //buffer: Box<u8>//[u8; 15000]
+    width: u32,
+    height: u32,
+    rotation: DisplayRotation,
+    buffer: &'a mut [u8], //buffer: Box<u8>//[u8; 15000]
 }
 
 impl<'a> Graphics<'a> {