73 lines
3.5 KiB
C#
73 lines
3.5 KiB
C#
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namespace Unosquare.RaspberryIO.Native
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{
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using System.Runtime.InteropServices;
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public partial class WiringPi
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{
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#region WiringPi - Serial Port
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/// <summary>
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/// This opens and initialises the serial device and sets the baud rate. It sets the port into “raw” mode (character at a time and no translations),
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/// and sets the read timeout to 10 seconds. The return value is the file descriptor or -1 for any error, in which case errno will be set as appropriate.
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/// The wiringSerial library is intended to provide simplified control – suitable for most applications, however if you need advanced control
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/// – e.g. parity control, modem control lines (via a USB adapter, there are none on the Pi’s on-board UART!) and so on,
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/// then you need to do some of this the old fashioned way.
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/// </summary>
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/// <param name="device">The device.</param>
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/// <param name="baud">The baud.</param>
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/// <returns>The result</returns>
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[DllImport(WiringPiLibrary, EntryPoint = "serialOpen", SetLastError = true)]
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public static extern int SerialOpen(string device, int baud);
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/// <summary>
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/// Closes the device identified by the file descriptor given.
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/// </summary>
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/// <param name="fd">The fd.</param>
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/// <returns>The result</returns>
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[DllImport(WiringPiLibrary, EntryPoint = "serialClose", SetLastError = true)]
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public static extern int SerialClose(int fd);
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/// <summary>
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/// Sends the single byte to the serial device identified by the given file descriptor.
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/// </summary>
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/// <param name="fd">The fd.</param>
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/// <param name="c">The c.</param>
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[DllImport(WiringPiLibrary, EntryPoint = "serialPutchar", SetLastError = true)]
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public static extern void SerialPutchar(int fd, byte c);
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/// <summary>
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/// Sends the nul-terminated string to the serial device identified by the given file descriptor.
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/// </summary>
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/// <param name="fd">The fd.</param>
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/// <param name="s">The s.</param>
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[DllImport(WiringPiLibrary, EntryPoint = "serialPuts", SetLastError = true)]
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public static extern void SerialPuts(int fd, string s);
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/// <summary>
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/// Returns the number of characters available for reading, or -1 for any error condition,
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/// in which case errno will be set appropriately.
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/// </summary>
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/// <param name="fd">The fd.</param>
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/// <returns>The result</returns>
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[DllImport(WiringPiLibrary, EntryPoint = "serialDataAvail", SetLastError = true)]
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public static extern int SerialDataAvail(int fd);
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/// <summary>
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/// Returns the next character available on the serial device.
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/// This call will block for up to 10 seconds if no data is available (when it will return -1)
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/// </summary>
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/// <param name="fd">The fd.</param>
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/// <returns>The result</returns>
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[DllImport(WiringPiLibrary, EntryPoint = "serialGetchar", SetLastError = true)]
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public static extern int SerialGetchar(int fd);
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/// <summary>
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/// This discards all data received, or waiting to be send down the given device.
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/// </summary>
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/// <param name="fd">The fd.</param>
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[DllImport(WiringPiLibrary, EntryPoint = "serialFlush", SetLastError = true)]
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public static extern void SerialFlush(int fd);
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#endregion
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}
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}
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