Fixed naming for seconds (#636)

src/System.Device.Gpio.Tests/GpioControllerTestBase.cs

@@ -16,7 +16,7 @@ namespace System.Device.Gpio.Tests
         private const int LedPin = 18;
         private const int OutputPin = 16;
         private const int InputPin = 12;
-        private static readonly int WaitMilliSeconds = 1000;
+        private static readonly int WaitMilliseconds = 1000;
 
         [Fact]
         public void ControllerCanTurnOnLEDs()
@@ -143,7 +143,7 @@ namespace System.Device.Gpio.Tests
                 controller.Write(OutputPin, PinValue.Low);
                 controller.RegisterCallbackForPinValueChangedEvent(InputPin, PinEventTypes.Rising, callback);
                 controller.Write(OutputPin, PinValue.High);
-                Thread.Sleep(WaitMilliSeconds);
+                Thread.Sleep(WaitMilliseconds);
                 Assert.True(wasCalled);
             }
 
@@ -164,7 +164,7 @@ namespace System.Device.Gpio.Tests
                 controller.Write(OutputPin, PinValue.Low);
                 controller.RegisterCallbackForPinValueChangedEvent(InputPin, PinEventTypes.Falling, callback);
                 controller.Write(OutputPin, PinValue.High);
-                Thread.Sleep(WaitMilliSeconds);
+                Thread.Sleep(WaitMilliseconds);
                 Assert.False(wasCalled);
             }
 
@@ -203,9 +203,9 @@ namespace System.Device.Gpio.Tests
                 for (int i = 0; i < 10; i++)
                 {
                     controller.Write(OutputPin, PinValue.High);
-                    Thread.Sleep(WaitMilliSeconds);
+                    Thread.Sleep(WaitMilliseconds);
                     controller.Write(OutputPin, PinValue.Low);
-                    Thread.Sleep(WaitMilliSeconds);
+                    Thread.Sleep(WaitMilliseconds);
                 }
 
                 Assert.Equal(25, risingEventOccuredCount);
@@ -243,16 +243,16 @@ namespace System.Device.Gpio.Tests
                     controller.RegisterCallbackForPinValueChangedEvent(InputPin, PinEventTypes.Rising, callback4);
 
                     controller.Write(OutputPin, PinValue.High);
-                    Thread.Sleep(WaitMilliSeconds);
+                    Thread.Sleep(WaitMilliseconds);
 
                     controller.UnregisterCallbackForPinValueChangedEvent(InputPin, callback1);
                     controller.UnregisterCallbackForPinValueChangedEvent(InputPin, callback2);
                     controller.UnregisterCallbackForPinValueChangedEvent(InputPin, callback3);
                     controller.UnregisterCallbackForPinValueChangedEvent(InputPin, callback4);
 
-                    Thread.Sleep(WaitMilliSeconds);
+                    Thread.Sleep(WaitMilliseconds);
                     controller.Write(OutputPin, PinValue.Low);
-                    Thread.Sleep(WaitMilliSeconds);
+                    Thread.Sleep(WaitMilliseconds);
                     controller.Write(OutputPin, PinValue.High);
 
                     Assert.Equal(1, risingEventOccuredCount);
@@ -283,11 +283,11 @@ namespace System.Device.Gpio.Tests
 
         [Fact]
         [Trait("SkipOnTestRun", "Windows_NT")] // The windows driver is returning none as the event type.
-        public void WaitForEventCancelAfter10MilliSecondsTest()
+        public void WaitForEventCancelAfter10MillisecondsTest()
         {
             using (GpioController controller = new GpioController(GetTestNumberingScheme(), GetTestDriver()))
             {
-                CancellationTokenSource tokenSource = new CancellationTokenSource(WaitMilliSeconds);
+                CancellationTokenSource tokenSource = new CancellationTokenSource(WaitMilliseconds);
                 controller.OpenPin(InputPin, PinMode.Input);
                 controller.OpenPin(OutputPin, PinMode.Output);
                 controller.Write(OutputPin, PinValue.Low);
@@ -311,7 +311,7 @@ namespace System.Device.Gpio.Tests
 
                 Task.Run(() =>
                 {
-                    Thread.Sleep(WaitMilliSeconds);
+                    Thread.Sleep(WaitMilliseconds);
                     controller.Write(OutputPin, PinValue.High);
                 });
 
@@ -335,7 +335,7 @@ namespace System.Device.Gpio.Tests
                 Task.Run(() =>
                 {
                     controller.Write(OutputPin, PinValue.High);
-                    Thread.Sleep(WaitMilliSeconds);
+                    Thread.Sleep(WaitMilliseconds);
                     controller.Write(OutputPin, PinValue.Low);
                 });
 

src/System.Device.Gpio/System/Device/Pwm/Channels/UnixPwmChannel.Linux.cs

@@ -77,7 +77,7 @@ namespace System.Device.Pwm.Channels
         /// </summary>
         /// <param name="frequency">The frequency in hertz.</param>
         /// <returns>The frequency period in nanoseconds.</returns>
-        private static int GetPeriodInNanoSeconds(int frequency)
+        private static int GetPeriodInNanoseconds(int frequency)
         {
             // In Linux, the period needs to be a whole number and can't have a decimal point.
             return (int)((1.0 / frequency) * 1_000_000_000);
@@ -94,8 +94,8 @@ namespace System.Device.Pwm.Channels
                 throw new ArgumentOutOfRangeException(nameof(frequency), frequency, "Value must not be negative.");
             }
             
-            int periodInNanoSeconds = GetPeriodInNanoSeconds(frequency);
-            File.WriteAllText($"{_channelPath}/period", Convert.ToString(periodInNanoSeconds));
+            int periodInNanoseconds = GetPeriodInNanoseconds(frequency);
+            File.WriteAllText($"{_channelPath}/period", Convert.ToString(periodInNanoseconds));
             _frequency = frequency;
         }
 
@@ -111,8 +111,8 @@ namespace System.Device.Pwm.Channels
             }
 
             // In Linux, the period needs to be a whole number and can't have decimal point.
-            int dutyCycleInNanoSeconds = (int)(GetPeriodInNanoSeconds(_frequency) * dutyCyclePercentage);
-            File.WriteAllText($"{_channelPath}/duty_cycle", Convert.ToString(dutyCycleInNanoSeconds));
+            int dutyCycleInNanoseconds = (int)(GetPeriodInNanoseconds(_frequency) * dutyCyclePercentage);
+            File.WriteAllText($"{_channelPath}/duty_cycle", Convert.ToString(dutyCycleInNanoseconds));
             _dutyCyclePercentage = dutyCyclePercentage;
         }