diff --git a/conf/firmwares/subsystems/rotorcraft/telemetry_transparent_udp.makefile b/conf/firmwares/subsystems/rotorcraft/telemetry_transparent_udp.makefile
index bd64e2c4184..7841fe35c0c 100644
--- a/conf/firmwares/subsystems/rotorcraft/telemetry_transparent_udp.makefile
+++ b/conf/firmwares/subsystems/rotorcraft/telemetry_transparent_udp.makefile
@@ -8,11 +8,14 @@ MODEM_PORT_OUT    ?= 4242
 MODEM_PORT_IN     ?= 4243
 MODEM_BROADCAST   ?= TRUE
 
+UDP_MODEM_PORT_LOWER=$(shell echo $(MODEM_DEV) | tr A-Z a-z)
+
+
 MODEM_CFLAGS  = -DUSE_$(MODEM_DEV) -D$(MODEM_DEV)_PORT_OUT=$(MODEM_PORT_OUT) -D$(MODEM_DEV)_PORT_IN=$(MODEM_PORT_IN)
 MODEM_CFLAGS += -D$(MODEM_DEV)_BROADCAST=$(MODEM_BROADCAST) -D$(MODEM_DEV)_HOST=$(MODEM_HOST)
 
-TELEM_CFLAGS  = -DDOWNLINK -DPERIODIC_TELEMETRY -DDOWNLINK_DEVICE=$(MODEM_DEV) -DPPRZ_UART=$(MODEM_DEV)
-TELEM_CFLAGS += -DDOWNLINK_TRANSPORT=PprzTransport -DDATALINK=PPRZ -DDefaultPeriodic='&telemetry_Main'
+TELEM_CFLAGS  = -DDOWNLINK -DPERIODIC_TELEMETRY -DDOWNLINK_DEVICE=$(UDP_MODEM_PORT_LOWER) -DPPRZ_UART=$(MODEM_DEV)
+TELEM_CFLAGS += -DDOWNLINK_TRANSPORT=pprz_tp -DDATALINK=PPRZ -DDefaultPeriodic='&telemetry_Main'
 
 
 ap.CFLAGS += $(MODEM_CFLAGS) $(TELEM_CFLAGS)
diff --git a/sw/airborne/mcu_periph/udp.c b/sw/airborne/mcu_periph/udp.c
index f747cb30547..69b45dfcefd 100644
--- a/sw/airborne/mcu_periph/udp.c
+++ b/sw/airborne/mcu_periph/udp.c
@@ -32,6 +32,10 @@ void udp_periph_init(struct udp_periph* p, char* host, int port_out, int port_in
   p->rx_insert_idx = 0;
   p->rx_extract_idx = 0;
   p->tx_insert_idx = 0;
+  p->device.periph = (void *)p;
+  p->device.check_free_space = (check_free_space_t) udp_check_free_space;
+  p->device.transmit = (transmit_t) udp_transmit;
+  p->device.send_message = (send_message_t) udp_send_message;
 
 // Arch dependent initialization
   udp_arch_periph_init(p, host, port_out, port_in, broadcast);
diff --git a/sw/airborne/mcu_periph/udp.h b/sw/airborne/mcu_periph/udp.h
index 8c874302cbc..b58558a7443 100644
--- a/sw/airborne/mcu_periph/udp.h
+++ b/sw/airborne/mcu_periph/udp.h
@@ -30,6 +30,7 @@
 
 #include "std.h"
 #include "mcu_periph/udp_arch.h"
+#include "mcu_periph/device.h"
 
 #define UDP_RX_BUFFER_SIZE 256
 #define UDP_TX_BUFFER_SIZE 256
@@ -44,6 +45,8 @@ struct udp_periph {
   uint16_t tx_insert_idx;
   /** UDP network */
   void* network;
+  /** Generic device interface */
+  struct device device;
 };
 
 extern void     udp_periph_init(struct udp_periph* p, char* host, int port_out, int port_in, bool_t broadcast);