public SmartScopeUsbInterfaceXamarin(Context context, UsbManager usbManager, UsbDevice device)
{
Destroyed = false;
if(!usbManager.HasPermission(device))
{
Logger.Error("Permission denied");
throw new Exception("Device permission not obtained");
}
UsbInterface interf = device.GetInterface(0);
for (int i = 0; i < interf.EndpointCount; i++)
{
if (interf.GetEndpoint(i).EndpointNumber == 1)
dataEndpoint = interf.GetEndpoint(i);
else if (interf.GetEndpoint(i).EndpointNumber == 2)
commandWriteEndpoint = interf.GetEndpoint(i);
else if (interf.GetEndpoint(i).EndpointNumber == 3)
commandReadEndpoint = interf.GetEndpoint(i);
}
usbConnection = usbManager.OpenDevice(device);
usbConnection.ClaimInterface(interf, true);
}
protected void CreateConnection()
{
if (UsbManager != null && UsbDevice != null) {
lock (mReadBufferLock) {
lock (mWriteBufferLock) {
Connection = UsbManager.OpenDevice (UsbDevice);
}
}
}
}
protected void CloseConnection()
{
if (Connection != null) {
lock (mReadBufferLock) {
lock (mWriteBufferLock) {
Connection.Close();
Connection = null;
}
}
}
}
public async Task<bool> OpenAsync()
{
if (connected)
return false;
usbManager.RequestPermission(usbDevice, PendingIntent.GetBroadcast(ConnectionService.Instance.Context, 0, new Intent(ConnectionService.Instance.ActionUsbPermission), PendingIntentFlags.CancelCurrent));
UsbInterface intf = usbDevice.GetInterface(0);
pinReportEndpoint = intf.GetEndpoint(0);
peripheralResponseEndpoint = intf.GetEndpoint(1);
pinConfigEndpoint = intf.GetEndpoint(2);
peripheralConfigEndpoint = intf.GetEndpoint(3);
connection = usbManager.OpenDevice(usbDevice);
if (connection != null)
{
bool intfClaimed = connection.ClaimInterface(intf, true);
if (intfClaimed)
{
connected = true;
return true;
}
}
return false;
}
