/// <summary>
/// Allocates the specified pin.
/// </summary>
/// <param name="pin">The pin.</param>
/// <param name="direction">The direction.</param>
public void Allocate(ProcessorPin pin, PinDirection direction)
{
Release(pin);
using (var streamWriter = new StreamWriter(Path.Combine(gpioPath, "export"), false))
streamWriter.Write((int)pin);
if (!gpioPathList.ContainsKey(pin))
{
var gpio = new FileGpioHandle {
GpioPath = GuessGpioPath(pin)
};
gpioPathList.Add(pin, gpio);
}
var filePath = Path.Combine(gpioPathList[pin].GpioPath, "direction");
try {
SetPinDirection(filePath, direction);
}
catch (UnauthorizedAccessException) {
// program hasn't been started as root, give it a second to correct file permissions
Thread.Sleep(TimeSpan.FromSeconds(1));
SetPinDirection(filePath, direction);
}
gpioPathList[pin].GpioStream = new FileStream(Path.Combine(GuessGpioPath(pin), "value"), FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);
}
/// <summary>
/// Allocates the specified pin.
/// </summary>
/// <param name="pin">The pin.</param>
/// <param name="direction">The direction.</param>
public void Allocate(ProcessorPin pin, PinDirection direction)
{
Release(pin);
using (var streamWriter = new StreamWriter(Path.Combine(gpioPath, "export"), false))
streamWriter.Write((int)pin);
if (!gpioPathList.ContainsKey(pin))
{
var gpio = new FileGpioHandle { GpioPath = GuessGpioPath(pin) };
gpioPathList.Add(pin, gpio);
}
var filePath = Path.Combine(gpioPathList[pin].GpioPath, "direction");
try {
SetPinDirection(filePath, direction);
}
catch (UnauthorizedAccessException) {
// program hasn't been started as root, give it a second to correct file permissions
Thread.Sleep(TimeSpan.FromSeconds(1));
SetPinDirection(filePath, direction);
}
gpioPathList[pin].GpioStream = new FileStream(Path.Combine(GuessGpioPath(pin), "value"), FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);
}