private static ulong TryGetDevicePropertyInteger(IHalDevice device, string propertyName)
{
//if the property does not exist, we don't care
try
{
return(device.GetPropertyInteger(propertyName));
}
catch { }
return(0);
}
private static string TryGetDevicePropertyString(IHalDevice device, string propertyName)
{
//if the property does not exist, we don't care
try
{
return(device.GetPropertyString(propertyName));
}
catch {}
return(String.Empty);
}
private static bool TryGetDevicePropertyBoolean(IHalDevice device, string propertyName)
{
//if the property does not exist, we don't care
try
{
return(device.GetPropertyBoolean(propertyName));
}
catch { }
return(false);
}
private static ulong TryGetDevicePropertyInteger(IHalDevice device, string propertyName)
{
//if the property does not exist, we don't care
try
{
return device.GetPropertyInteger(propertyName);
}
catch { }
return 0;
}
private static bool TryGetDevicePropertyBoolean(IHalDevice device, string propertyName)
{
//if the property does not exist, we don't care
try
{
return device.GetPropertyBoolean(propertyName);
}
catch { }
return false;
}
private static string TryGetDevicePropertyString(IHalDevice device, string propertyName)
{
//if the property does not exist, we don't care
try
{
return device.GetPropertyString(propertyName);
}
catch{}
return String.Empty;
}
private static bool DeviceIsOnUsbBus(Connection conn, string halNameOnDbus, IHalDevice device)
{
bool deviceIsOnUsbSubsystem;
bool thereIsAPathToParent;
do
{
string subsystem = TryGetDevicePropertyString(device, "info.subsystem");
deviceIsOnUsbSubsystem = subsystem.Contains("usb");
string pathToParent = TryGetDevicePropertyString(device, "info.parent");
thereIsAPathToParent = String.IsNullOrEmpty(pathToParent);
device = conn.GetObject <IHalDevice>(halNameOnDbus, new ObjectPath(pathToParent));
} while (!deviceIsOnUsbSubsystem && !thereIsAPathToParent);
return(deviceIsOnUsbSubsystem);
}
private static bool DeviceIsOnUsbBus(Connection conn, string halNameOnDbus, IHalDevice device)
{
bool deviceIsOnUsbSubsystem;
bool thereIsAPathToParent;
do
{
string subsystem = TryGetDevicePropertyString(device, "info.subsystem");
deviceIsOnUsbSubsystem = subsystem.Contains("usb");
string pathToParent = TryGetDevicePropertyString(device, "info.parent");
thereIsAPathToParent = String.IsNullOrEmpty(pathToParent);
device = conn.GetObject<IHalDevice>(halNameOnDbus, new ObjectPath(pathToParent));
} while (!deviceIsOnUsbSubsystem && !thereIsAPathToParent);
return deviceIsOnUsbSubsystem;
}
