diff -r 1aee4aa1def3 -r f1a7ea8a550a tools/Master.cpp
--- a/tools/Master.cpp	Fri Jun 06 09:27:24 2008 +0000
+++ b/tools/Master.cpp	Fri Jun 06 09:34:20 2008 +0000
@@ -209,31 +209,31 @@
 
 /****************************************************************************/
 
-void Master::listPdos(int slavePosition)
+void Master::listPdos(int slavePosition, bool quiet)
 {
     if (slavePosition == -1) {
         unsigned int numSlaves = slaveCount(), i;
 
         for (i = 0; i < numSlaves; i++) {
-            listSlavePdos(i, true);
+            listSlavePdos(i, quiet, true);
         }
     } else {
-        listSlavePdos(slavePosition, false);
-    }
-}
-
-/****************************************************************************/
-
-void Master::listSdos(int slavePosition)
+        listSlavePdos(slavePosition, quiet, false);
+    }
+}
+
+/****************************************************************************/
+
+void Master::listSdos(int slavePosition, bool quiet)
 {
     if (slavePosition == -1) {
         unsigned int numSlaves = slaveCount(), i;
 
         for (i = 0; i < numSlaves; i++) {
-            listSlaveSdos(i, true);
+            listSlaveSdos(i, quiet, true);
         }
     } else {
-        listSlaveSdos(slavePosition, false);
+        listSlaveSdos(slavePosition, quiet, false);
     }
 }
 
@@ -390,7 +390,11 @@
 
 /****************************************************************************/
 
-void Master::listSlavePdos(uint16_t slavePosition, bool withHeader)
+void Master::listSlavePdos(
+        uint16_t slavePosition,
+        bool quiet,
+        bool withHeader
+        )
 {
     ec_ioctl_slave_t slave;
     ec_ioctl_sync_t sync;
@@ -424,6 +428,9 @@
                 << hex << setfill('0') << setw(4) << pdo.index
                 << " \"" << pdo.name << "\"" << endl;
 
+            if (quiet)
+                continue;
+
             for (k = 0; k < pdo.entry_count; k++) {
                 getPdoEntry(&entry, slavePosition, i, j, k);
 
@@ -440,7 +447,11 @@
 
 /****************************************************************************/
 
-void Master::listSlaveSdos(uint16_t slavePosition, bool withHeader)
+void Master::listSlaveSdos(
+        uint16_t slavePosition,
+        bool quiet,
+        bool withHeader
+        )
 {
     ec_ioctl_slave_t slave;
     ec_ioctl_sdo_t sdo;
@@ -459,6 +470,9 @@
             << hex << setfill('0') << setw(4) << sdo.sdo_index
             << ", \"" << sdo.name << "\"" << endl;
 
+        if (quiet)
+            continue;
+
         for (j = 0; j <= sdo.max_subindex; j++) {
             getSdoEntry(&entry, slavePosition, i, j);