diff --git a/src/serial.c b/src/serial.c
index 378117ee2..630dc6657 100644
--- a/src/serial.c
+++ b/src/serial.c
@@ -372,6 +372,13 @@ int HAMLIB_API serial_setup(hamlib_port_t *rp)
         break;
 #endif
 
+#ifdef B460800
+
+    case 460800:
+        speed = B460800;    /* extra super awesome! */
+        break;
+#endif
+
 #ifdef B500000
 
     case 500000:
@@ -379,6 +386,76 @@ int HAMLIB_API serial_setup(hamlib_port_t *rp)
         break;
 #endif
 
+#ifdef B576000
+
+    case 576000:
+        speed = B576000;    /* out of adverbs */
+        break;
+#endif
+
+#ifdef B921600
+
+    case 921600:
+        speed = B921600;
+        break;
+#endif
+
+#ifdef B1000000
+
+    case 1000000:
+        speed = B1000000;
+        break;
+#endif
+
+#ifdef B1152000
+
+    case 1152000:
+        speed = B1152000;
+        break;
+#endif
+
+#ifdef B1500000
+
+    case 1500000:
+        speed = B1500000;
+        break;
+#endif
+
+#ifdef B2000000
+
+    case 2000000:
+        speed = B2000000;
+        break;
+#endif
+
+#ifdef B2500000
+
+    case 2500000:
+        speed = B2500000;
+        break;
+#endif
+
+#ifdef B3000000
+
+    case 3000000:
+        speed = B3000000;
+        break;
+#endif
+
+#ifdef B3500000
+
+    case 3500000:
+        speed = B3500000;
+        break;
+#endif
+
+#ifdef B4000000
+
+    case 4000000:
+        speed = B4000000;
+        break;
+#endif
+
     default:
         rig_debug(RIG_DEBUG_ERR,
                   "%s: unsupported rate specified: %d\n",