Changed it to "serial" to allow for *both* serial and TCP connection.

If "pathname" is a legal TCP address, it will fall back to TCP
(see code in rig_open).

rigs/kenwood/pihpsdr.c

@@ -108,11 +108,17 @@ const struct rig_caps pihpsdr_caps =
     .rig_type =  RIG_TYPE_TRANSCEIVER,
     .ptt_type =  RIG_PTT_RIG,
     .dcd_type =  RIG_DCD_RIG,
-    .port_type =  RIG_PORT_NETWORK,
+    .port_type =  RIG_PORT_SERIAL,
+    .serial_rate_min = 4800,
+    .serial_rate_max = 38400,
+    .serial_data_bits = 8,
+    .serial_stop_bits = 1,
+    .serial_parity = RIG_PARITY_NONE,
+    .serial_handshake = RIG_HANDSHAKE_NONE,
     .write_delay =  0,
     .post_write_delay =  50,    /* ms */
-    .timeout =  0,
-    .retry =  0,
+    .timeout =  50,
+    .retry =  1,
     .has_get_func =  PIHPSDR_FUNC_ALL,
     .has_set_func =  PIHPSDR_FUNC_ALL,
     .has_get_level =  PIHPSDR_LEVEL_ALL,