在C#中LibUsbSharp如何進(jìn)行異步數(shù)據(jù)傳輸

c#
小樊
90
2024-08-14 17:15:39

在LibUsbSharp中進(jìn)行異步數(shù)據(jù)傳輸可以通過(guò)使用異步方法或事件來(lái)實(shí)現(xiàn)。下面是使用異步方法進(jìn)行異步數(shù)據(jù)傳輸?shù)氖纠a:

using LibUsbDotNet;
using LibUsbDotNet.Main;

class Program
{
    static UsbDevice MyUsbDevice;

    static void Main(string[] args)
    {
        UsbDeviceFinder finder = new UsbDeviceFinder(1234, 5678); // Vendor ID and Product ID
        MyUsbDevice = UsbDevice.OpenUsbDevice(finder);

        if (MyUsbDevice == null)
        {
            throw new Exception("Device not found");
        }

        MyUsbDevice.Open();

        byte[] buffer = new byte[64];

        IAsyncResult result = MyUsbDevice.BeginBulkWrite(buffer, 1000, null, null);

        // Do other stuff while data transfer is in progress

        int bytesTransferred = MyUsbDevice.EndBulkWrite(result);

        MyUsbDevice.Close();
    }
}

在上面的示例代碼中,我們通過(guò)調(diào)用BeginBulkWrite方法開(kāi)始了一個(gè)異步數(shù)據(jù)傳輸操作。在數(shù)據(jù)傳輸操作進(jìn)行的同時(shí),我們可以做一些其他的操作。最后,我們通過(guò)調(diào)用EndBulkWrite方法來(lái)獲取傳輸?shù)淖止?jié)數(shù),并完成數(shù)據(jù)傳輸操作。

另外,LibUsbSharp也提供了一些異步事件用于數(shù)據(jù)傳輸,你可以注冊(cè)這些事件來(lái)處理異步數(shù)據(jù)傳輸。以下是一個(gè)使用異步事件進(jìn)行數(shù)據(jù)傳輸?shù)氖纠a:

using LibUsbDotNet;
using LibUsbDotNet.Main;

class Program
{
    static UsbDevice MyUsbDevice;

    static void Main(string[] args)
    {
        UsbDeviceFinder finder = new UsbDeviceFinder(1234, 5678); // Vendor ID and Product ID
        MyUsbDevice = UsbDevice.OpenUsbDevice(finder);

        if (MyUsbDevice == null)
        {
            throw new Exception("Device not found");
        }

        MyUsbDevice.Open();

        byte[] buffer = new byte[64];

        MyUsbDevice.DataReceived += (sender, e) =>
        {
            int bytesTransferred = e.Count;

            // Handle received data
        };

        MyUsbDevice.DataSent += (sender, e) =>
        {
            int bytesTransferred = e.Count;

            // Handle sent data
        };

        MyUsbDevice.Write(buffer, 1000);

        // Do other stuff while data transfer is in progress

        MyUsbDevice.Close();
    }
}

在上面的示例代碼中,我們通過(guò)注冊(cè)DataReceivedDataSent事件來(lái)處理接收和發(fā)送數(shù)據(jù)的異步操作。當(dāng)數(shù)據(jù)傳輸完成時(shí),這些事件會(huì)被觸發(fā),我們可以在事件處理程序中處理接收和發(fā)送的數(shù)據(jù)。

希望以上信息能幫助到你。如果有任何疑問(wèn),請(qǐng)隨時(shí)提出。

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