Add lookup by serial number.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8858 221aa14e-8319-0410-a670-987f0aec2ac5

diff --git a/gr-utils/src/python/lsusrp b/gr-utils/src/python/lsusrp
index df52c608e12aa85de24eb761e3a6d2df34218188..d2eab33fe3bab8c02410fa5b1d0debca2a845267 100755 (executable)
--- a/gr-utils/src/python/lsusrp
+++ b/gr-utils/src/python/lsusrp
@@ -25,9 +25,14 @@ MAX_USRPS = 8
 from gnuradio import usrp
 from optparse import OptionParser
 
-def disp_usrp(which):
+def disp_usrp(which, serial=None):
     u_source = usrp.source_c(which=which)
     u_sink = usrp.sink_c(which=which)
+    u_serial = u_source.serial_number()
+    
+    if serial is not None:
+        if serial != u_serial:
+            raise ValueError
        
     print "USRP", which, "serial number", u_source.serial_number()
     subdev_A_rx = usrp.selected_subdev(u_source, (0,0))
@@ -44,11 +49,18 @@ if __name__ == "__main__":
     parser.add_option("-w", "--which", type="int", default=None,
                       help="select which USRP (0, 1, ...) default is all found",
                      metavar="NUM")
+    parser.add_option("-s", "--serial", default=None,
+                      help="select USRP by serial number",
+                     metavar="SER")
     (options, args) = parser.parse_args()
     if len(args) > 0:
        print parser.print_help()
        raise SystemExit, 1
 
+    if options.serial is not None and options.which is not None:
+       print "Use of --which or --serial is exclusive"
+       raise SystemExit, 1
+
     if options.which is not None:
        try:    
            disp_usrp(options.which)
@@ -57,7 +69,7 @@ if __name__ == "__main__":
     else:
        for n in range(MAX_USRPS):
            try:
-               disp_usrp(n)
+               disp_usrp(n, options.serial)
            except:
                pass