Created empty usrp1e cpp file for the case when headers are not found.

Worked on the device make and discovery to fix certain problems.
Added node param to discover usrps for usrp1e, made addr optional.

1 files changed, 14 insertions, 7 deletions

diff --git a/host/apps/discover_usrps.cpp b/host/apps/discover_usrps.cpp
index 08135a27c..7e8c21673 100644
--- a/host/apps/discover_usrps.cpp
+++ b/host/apps/discover_usrps.cpp
@@ -28,6 +28,7 @@ int main(int argc, char *argv[]){
     desc.add_options()
         ("help", "help message")
         ("addr", po::value<std::string>(), "resolvable network address")
+        ("node", po::value<std::string>(), "path to linux device node")
     ;
 
     po::variables_map vm;
@@ -35,22 +36,28 @@ int main(int argc, char *argv[]){
     po::notify(vm); 
 
     //print the help message
-    if (vm.count("help")) {
+    if (vm.count("help")){
         std::cout << boost::format("Discover USRPs %s") % desc << std::endl;
         return ~0;
     }
 
-    //extract the address (not optional for now)
+    //load the options into the address
     uhd::device_addr_t device_addr;
-    if (vm.count("addr")) {
+    if (vm.count("addr")){
         device_addr["addr"] = vm["addr"].as<std::string>();
-    } else {
-        std::cout << "The address was not set" << std::endl;
+    }
+    if (vm.count("node")){
+        device_addr["node"] = vm["node"].as<std::string>();
+    }
+
+    //discover the usrps and print the results
+    uhd::device_addrs_t device_addrs = uhd::device::discover(device_addr);
+
+    if (device_addrs.size() == 0){
+        std::cerr << "No USRP Devices Found" << std::endl;
         return ~0;
     }
 
-    //discover the usrps
-    std::vector<uhd::device_addr_t> device_addrs = uhd::device::discover(device_addr);
     for (size_t i = 0; i < device_addrs.size(); i++){
         std::cout << "--------------------------------------------------" << std::endl;
         std::cout << "-- USRP Device " << i << std::endl;