diff --git a/master/ioctl.c b/master/ioctl.c
index 49d07892..b0282879 100644
--- a/master/ioctl.c
+++ b/master/ioctl.c
@@ -1350,6 +1350,7 @@ static int ec_ioctl_config_sdo(
     ioctl->size = req->data_size;
     memcpy(ioctl->data, req->data,
             min((u32) ioctl->size, (u32) EC_MAX_SDO_DATA_SIZE));
+    ioctl->complete_access = req->complete_access;
 
     up(&master->master_sem);
 
diff --git a/master/ioctl.h b/master/ioctl.h
index 43dcbab6..d6cc78ef 100644
--- a/master/ioctl.h
+++ b/master/ioctl.h
@@ -56,7 +56,7 @@
  *
  * Increment this when changing the ioctl interface!
  */
-#define EC_IOCTL_VERSION_MAGIC 19
+#define EC_IOCTL_VERSION_MAGIC 20
 
 // Command-line tool
 #define EC_IOCTL_MODULE                EC_IOR(0x00, ec_ioctl_module_t)
@@ -528,6 +528,7 @@ typedef struct {
     uint8_t subindex;
     uint32_t size;
     uint8_t data[EC_MAX_SDO_DATA_SIZE];
+    uint8_t complete_access;
 } ec_ioctl_config_sdo_t;
 
 /*****************************************************************************/
diff --git a/tool/CommandConfig.cpp b/tool/CommandConfig.cpp
index f8840133..b9fa1b64 100644
--- a/tool/CommandConfig.cpp
+++ b/tool/CommandConfig.cpp
@@ -236,9 +236,14 @@ void CommandConfig::showDetailedConfigs(
 
                 cout << indent << "  0x"
                     << hex << setfill('0')
-                    << setw(4) << sdo.index << ":"
-                    << setw(2) << (unsigned int) sdo.subindex
-                    << ", " << dec << sdo.size << " byte" << endl;
+                    << setw(4) << sdo.index;
+                if (sdo.complete_access) {
+                    cout << " C";
+                }
+                else {
+                    cout << ":" << setw(2) << (unsigned int) sdo.subindex;
+                }
+                cout << ", " << dec << sdo.size << " byte" << endl;
 
                 cout << indent << "    " << hex;
                 for (i = 0; i < min((uint32_t) sdo.size,