www.pudn.com > SharpUSBlib20041208.zip > Bus.cs

// Bus.cs 
// Copyright (C) 2004 Mike Krueger 
//  
// This program is free software. It is dual licensed under GNU GPL and GNU LGPL. 
// See COPYING_GPL.txt and COPYING_LGPL.txt for details. 
// 
using System; 
using ICSharpCode.USBlib.Internal; 
 
namespace ICSharpCode.USBlib 
{ 
	/// 
 
	/// Description of Bus. 
	/// 
 
	public class Bus 
	{ 
		usb_bus              nativeBus; 
		DescriptorCollection descriptors; 
		 
		public static BusCollection Busses { 
			get { 
				BusCollection busCollection = new BusCollection(); 
				NativeMethods.usb_init(); 
				int rc = NativeMethods.usb_find_busses(); 
				if (rc <= 0) { 
					throw new MethodCallUsbException("usb_find_busses", rc); 
				} 
				 
				rc = NativeMethods.usb_find_devices(); 
				if (rc <= 0) { 
					throw new MethodCallUsbException("usb_find_devices", rc); 
				} 
				 
				for (usb_bus bus = NativeMethods.usb_get_busses(); bus != null; bus = bus.Next) { 
					busCollection.Add(new Bus(bus)); 
				} 
				return busCollection; 
			} 
		} 
		 
		public string DirectoryName { 
			get { 
				return nativeBus.dirname; 
			} 
		} 
		 
		public DescriptorCollection Descriptors { 
			get { 
				return descriptors; 
			} 
		} 
		 
		internal Bus(usb_bus nativeBus) 
		{ 
			this.nativeBus = nativeBus; 
			this.descriptors   = new DescriptorCollection(); 
		 
			 
			for (usb_device dev = nativeBus.Devices; dev != null; dev = dev.Next) { 
				descriptors.Add(new Descriptor(dev)); 
			} 
		} 
		 
		public override string ToString()  
		{ 
			return String.Format("[Bus: DirectoryName = {0}]", DirectoryName); 
		} 
	} 
}