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@kraftboy

kraftboy/mbutil.cs

Created Dec 29, 2020
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What would you like to do?
quick and dirty enumeration of USB devices, endpoint polling, and setting windows default audio playback device
using LibUsbDotNet.Info;
using LibUsbDotNet.LibUsb;
using LibUsbDotNet.Main;
using System;
using System.Collections.ObjectModel;
using System.Linq;
using AudioEndPoint;
namespace Examples
{
internal class ShowInfo
{
public static void Main(string[] args)
{
// Dump all devices and descriptor information to console output.
using (UsbContext context = new UsbContext())
{
var allDevices = context.List();
foreach(var usbRegistry in allDevices)
{
if (usbRegistry.TryOpen())
{
UsbDevice device = usbRegistry as UsbDevice;
if(device.Descriptor.Manufacturer == "foobar.com")
{
byte[] epBuf = new byte[1];
var myDevice = device;
if(myDevice.ClaimInterface(0))
{
Console.WriteLine($"Device open, interface 0 claimed: {device.ToString()}");
UsbEndpointReader reader = myDevice.OpenEndpointReader(ReadEndpointID.Ep01, 1, EndpointType.Interrupt);
byte buttonState = 0;
while (true)
{
int bytesRead = 0;
var err = reader.Read(epBuf, 0, out bytesRead);
if (epBuf[0] != buttonState)
{
buttonState = epBuf[0];
// Console.WriteLine($"Button: {buttonState}");
if(buttonState != 0)
{
var audioPlaybackDevices = AudioEndPointControllerWrapper.AudioController.GetActivePlaybackDevices();
bool setDefault = false;
Action<AudioEndPointControllerWrapper.IAudioDevice> setAsDefault = x =>
{
Console.WriteLine($"{x} set as default.");
x.SetAsDefault(AudioEndPointControllerWrapper.Role.Multimedia);
};
foreach (var audioDevice in audioPlaybackDevices)
{
if(setDefault)
{
setAsDefault(audioDevice);
break;
}
if (audioDevice.IsDefault(AudioEndPointControllerWrapper.Role.Multimedia))
{
if(audioDevice == audioPlaybackDevices.Last())
{
setAsDefault(audioPlaybackDevices.First());
break;
}
setDefault = true;
}
}
}
}
}
}
}
usbRegistry.Close();
}
}
}
// Wait for user input..
Console.WriteLine("Press any key to exit");
Console.ReadKey();
}
}
}
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