title: USRP on RedHawk
body: <p>I'm trying to use a USRP platform (B100,USRP1 or B2x0) on Redhawk.
  I installed redhawk 1.9.0,uhd driver and usrp_uhd device on centOS6.5_x64, both virtual machine and native, and I made a node including USRP_UHD and GPP device, a simple component and waveform.
  I would like to test simple waveform on my previous node but I got this error when the device manager run:</p>
  
  <p><code>WARN:Device_impl - Unable to connect to IDM channel
  INFO:DeviceManager_impl - Registering device USRP_UHD_1 on Device
  Manager uhd_node
  INFO:DeviceManager_impl - Initializing device USRP_UHD_1 on Device
  Manager uhd_node
  -- Opening a USRP1 device...
  INFO:uhd_node:GPP_1:Registering Device
  INFO:DeviceManager_impl - Registering device GPP_1 on Device Manager uhd_node
  -- Using FPGA clock rate of 64.000000MHz...
  ERROR:USRP_UHD_i - USRP COULD NOT BE INITIALIZED!
  WARN:USRP_UHD_i - CAUGHT EXCEPTION WHEN INITIALIZING USRP. WAITING 1
  SECOND AND TRYING AGAIN
  ERROR:uhd_node:GPP_1:Could not register with DeviceManager: timeout
  while attempting to register
  ERROR:USRP_UHD_i - USRP COULD NOT BE INITIALIZED!
  ERROR:USRP_UHD_i - Unable to initialize USRP!
  ERROR:DeviceManager_impl - Device 'USRP_UHD' -
  'DCE:631ec04b-1541-4992-b007-5d7c87874f5d' may not have been
  configured correctly; Call to configure() resulted in
  InvalidConfiguration exception
  INFO:DeviceManager_impl - Registering device USRP_UHD_1 on Domain Manager
  INFO:DeviceManager_impl - Initializing device GPP_1 on Device Manager uhd_node
  INFO:DeviceManager_impl - Registering device GPP_1 on Domain Manager</code></p>
  
  <p>Can anyone help me to find a solution to use a USRP on redhawk??Do anyone manage to use USRP on RedHawk?</p>