protected override bool TryCreateDevice(object key, out HidDevice device, out object creationState)
{
creationState = null;
var path = (NativeMethods.io_string_t)key; var hidDevice = new MacHidDevice(path);
using (var handle = NativeMethods.IORegistryEntryFromPath(0, ref path).ToIOObject())
{
if (!handle.IsSet || !hidDevice.GetInfo(handle))
{
device = null; return(false);
}
device = hidDevice; return(true);
}
}
internal void Init(NativeMethods.io_string_t path, MacHidDevice device)
{
IntPtr handle;
using (var service = NativeMethods.IORegistryEntryFromPath(0, ref path).ToIOObject())
{
handle = NativeMethods.IOHIDDeviceCreate(IntPtr.Zero, service);
if (handle == IntPtr.Zero)
{
throw new IOException("HID class device not found.");
}
if (NativeMethods.IOReturn.Success != NativeMethods.IOHIDDeviceOpen(handle))
{
NativeMethods.CFRelease(handle); throw new IOException("Unable to open HID class device.");
}
}
_device = device;
_handle = handle;
HandleInitAndOpen();
_readThread.Start();
_writeThread.Start();
}
