Commit troubleshooting

Author: David-OConnor

src/gpio.rs

@@ -206,6 +206,32 @@ macro_rules! gpio {
             }
         }
 
+        
+        #[cfg(feature = "unproven")]
+        impl<MODE> InputPin for PXx<Output<MODE>> {
+            type Error = Infallible;
+
+            fn is_high(&self) -> Result<bool, Self::Error> {
+                Ok(!self.is_low()?)
+            }
+
+             fn is_low(&self) -> Result<bool, Self::Error> {
+                // NOTE(unsafe) atomic read with no side effects
+                Ok(unsafe {
+                    match &self.gpio {
+                        $(
+                            #[cfg(all(any(
+                                $(feature = $device,)+
+                            ), not(any(
+                                $(feature = $device_except,)*
+                            ))))]
+                            Gpio::$GPIOX => (*$GPIOX::ptr()).idr.read().bits() & (1 << self.i) == 0,
+                        )+
+                    }
+                })
+            }
+        }
+
         #[cfg(feature = "unproven")]
         impl <MODE> StatefulOutputPin for PXx<Output<MODE>> {
             fn is_set_high(&self) -> Result<bool, Self::Error> {