diff --git a/sw/airborne/arch/lpc21/mcu_periph/spi_slave_hs_arch.c b/sw/airborne/arch/lpc21/mcu_periph/spi_slave_hs_arch.c
index 53e58cdea3d..528a344ef8a 100644
--- a/sw/airborne/arch/lpc21/mcu_periph/spi_slave_hs_arch.c
+++ b/sw/airborne/arch/lpc21/mcu_periph/spi_slave_hs_arch.c
@@ -163,7 +163,7 @@ void spi_slave_hs_init(void)
   // Configure generic device
   spi_slave_hs.device.periph = (void *)(&spi_slave_hs);
   spi_slave_hs.device.check_free_space = (check_free_space_t) spi_slave_hs_check_free_space;
-  spi_slave_hs.device.transmit = (transmit_t) spi_slave_hs_transmit;
+  spi_slave_hs.device.put_byte = (put_byte_t) spi_slave_hs_transmit;
   spi_slave_hs.device.send_message = (send_message_t) spi_slave_hs_send;
   spi_slave_hs.device.char_available = (char_available_t) spi_slave_hs_char_available;
   spi_slave_hs.device.get_byte = (get_byte_t) spi_slave_hs_getch;
diff --git a/sw/airborne/arch/lpc21/usb_ser_hw.c b/sw/airborne/arch/lpc21/usb_ser_hw.c
index 5923c144ef1..973db689846 100644
--- a/sw/airborne/arch/lpc21/usb_ser_hw.c
+++ b/sw/airborne/arch/lpc21/usb_ser_hw.c
@@ -618,7 +618,7 @@ void VCOM_init(void)
   // Configure generic device
   usb_serial.device.periph = (void *)(&usb_serial);
   usb_serial.device.check_free_space = (check_free_space_t) usb_serial_check_free_space;
-  usb_serial.device.transmit = (transmit_t) usb_serial_transmit;
+  usb_serial.device.put_byte = (put_byte_t) usb_serial_transmit;
   usb_serial.device.send_message = (send_message_t) usb_serial_send;
   usb_serial.device.char_available = (char_available_t) usb_serial_char_available;
   usb_serial.device.get_byte = (get_byte_t) usb_serial_getch;
diff --git a/sw/airborne/arch/stm32/usb_ser_hw.c b/sw/airborne/arch/stm32/usb_ser_hw.c
index dd0e3eee599..b89a19bf8c8 100644
--- a/sw/airborne/arch/stm32/usb_ser_hw.c
+++ b/sw/airborne/arch/stm32/usb_ser_hw.c
@@ -528,7 +528,7 @@ void VCOM_init(void)
   // Configure generic device
   usb_serial.device.periph = (void *)(&usb_serial);
   usb_serial.device.check_free_space = (check_free_space_t) usb_serial_check_free_space;
-  usb_serial.device.transmit = (transmit_t) usb_serial_transmit;
+  usb_serial.device.put_byte = (put_byte_t) usb_serial_transmit;
   usb_serial.device.send_message = (send_message_t) usb_serial_send;
   usb_serial.device.char_available = (char_available_t) usb_serial_char_available;
   usb_serial.device.get_byte = (get_byte_t) usb_serial_getch;
diff --git a/sw/airborne/firmwares/fixedwing/fbw_datalink.c b/sw/airborne/firmwares/fixedwing/fbw_datalink.c
index f99fef6ed9c..dfb5d6b7d09 100644
--- a/sw/airborne/firmwares/fixedwing/fbw_datalink.c
+++ b/sw/airborne/firmwares/fixedwing/fbw_datalink.c
@@ -36,12 +36,12 @@
 
 static inline void autopilot_parse(char c)
 {
-  ModemLinkDevice->transmit(ModemLinkDevice->periph, c);
+  ModemLinkDevice->put_byte(ModemLinkDevice->periph, c);
 }
 
 static inline void modem_parse(char c)
 {
-  AutopilotLinkDevice->transmit(AutopilotLinkDevice->periph, c);
+  AutopilotLinkDevice->put_byte(AutopilotLinkDevice->periph, c);
 }
 
 void fbw_datalink_periodic(void)
diff --git a/sw/airborne/mcu_periph/link_device.h b/sw/airborne/mcu_periph/link_device.h
index 2834ddc6c45..e282686d790 100644
--- a/sw/airborne/mcu_periph/link_device.h
+++ b/sw/airborne/mcu_periph/link_device.h
@@ -34,7 +34,7 @@
  * to store in the device structure
  */
 typedef int (*check_free_space_t)(void *, uint8_t);
-typedef void (*transmit_t)(void *, uint8_t);
+typedef void (*put_byte_t)(void *, uint8_t);
 typedef void (*send_message_t)(void *);
 typedef int (*char_available_t)(void *);
 typedef uint8_t (*get_byte_t)(void *);
@@ -43,10 +43,10 @@ typedef uint8_t (*get_byte_t)(void *);
  */
 struct link_device {
   check_free_space_t check_free_space;  ///< check if transmit buffer is not full
-  transmit_t transmit;                  ///< transmit one byte
+  put_byte_t put_byte;                  ///< put one byte
   send_message_t send_message;          ///< send completed buffer
   char_available_t char_available;      ///< check if a new character is available
-  get_byte_t get_byte;                    ///< get a new char
+  get_byte_t get_byte;                  ///< get a new char
   void *periph;                         ///< pointer to parent implementation
 };
 
diff --git a/sw/airborne/mcu_periph/uart.c b/sw/airborne/mcu_periph/uart.c
index 586399bf32e..7e1aa83750b 100644
--- a/sw/airborne/mcu_periph/uart.c
+++ b/sw/airborne/mcu_periph/uart.c
@@ -201,7 +201,7 @@ void uart_periph_init(struct uart_periph *p)
   p->fe_err = 0;
   p->device.periph = (void *)p;
   p->device.check_free_space = (check_free_space_t)uart_check_free_space;
-  p->device.transmit = (transmit_t)uart_transmit;
+  p->device.put_byte = (put_byte_t)uart_transmit;
   p->device.send_message = (send_message_t)null_function;
   p->device.char_available = (char_available_t)uart_char_available;
   p->device.get_byte = (get_byte_t)uart_getch;
diff --git a/sw/airborne/mcu_periph/udp.c b/sw/airborne/mcu_periph/udp.c
index 7256dccd5ac..d953a7de11a 100644
--- a/sw/airborne/mcu_periph/udp.c
+++ b/sw/airborne/mcu_periph/udp.c
@@ -62,7 +62,7 @@ void udp_periph_init(struct udp_periph *p, char *host, int port_out, int port_in
   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.put_byte = (put_byte_t) udp_transmit;
   p->device.send_message = (send_message_t) udp_send_message;
   p->device.char_available = (char_available_t) udp_char_available;
   p->device.get_byte = (get_byte_t) udp_getch;
diff --git a/sw/airborne/modules/datalink/mavlink.h b/sw/airborne/modules/datalink/mavlink.h
index dd49a86627f..ac4c0145f3b 100644
--- a/sw/airborne/modules/datalink/mavlink.h
+++ b/sw/airborne/modules/datalink/mavlink.h
@@ -53,7 +53,7 @@ extern mavlink_system_t mavlink_system;
  * The MAVLink link description
  */
 #define MAVLinkDev (&(MAVLINK_DEV).device)
-#define MAVLinkTransmit(c) MAVLinkDev->transmit(MAVLinkDev->periph, c)
+#define MAVLinkTransmit(c) MAVLinkDev->put_byte(MAVLinkDev->periph, c)
 #define MAVLinkChAvailable() MAVLinkDev->char_available(MAVLinkDev->periph)
 #define MAVLinkGetch() MAVLinkDev->get_byte(MAVLinkDev->periph)
 #define MAVLinkSendMessage() MAVLinkDev->send_message(MAVLinkDev->periph)
diff --git a/sw/airborne/modules/digital_cam/uart_cam_ctrl.c b/sw/airborne/modules/digital_cam/uart_cam_ctrl.c
index 49f9aeefc2f..1d397f34c1e 100644
--- a/sw/airborne/modules/digital_cam/uart_cam_ctrl.c
+++ b/sw/airborne/modules/digital_cam/uart_cam_ctrl.c
@@ -46,7 +46,7 @@
 #include "state.h"
 
 #define CameraLinkDev (&(CAMERA_LINK).device)
-#define CameraLinkTransmit(c) CameraLinkDev->transmit(CameraLinkDev->periph, c)
+#define CameraLinkTransmit(c) CameraLinkDev->put_byte(CameraLinkDev->periph, c)
 #define CameraLinkChAvailable() CameraLinkDev->check_available(CameraLinkDev->periph)
 #define CameraLinkGetch() CameraLinkGetch->get_byte(CameraLinkDev->periph)
 
diff --git a/sw/airborne/modules/ins/ins_module.h b/sw/airborne/modules/ins/ins_module.h
index 584b204184c..3256e26626c 100644
--- a/sw/airborne/modules/ins/ins_module.h
+++ b/sw/airborne/modules/ins/ins_module.h
@@ -79,7 +79,7 @@ void parse_ins_buffer(uint8_t);
 #include "mcu_periph/uart.h"
 #include "mcu_periph/spi.h"
 
-#define InsSend1(c) InsLinkDevice->transmit(InsLinkDevice->periph, c)
+#define InsSend1(c) InsLinkDevice->put_byte(InsLinkDevice->periph, c)
 #define InsUartSend1(c) InsSend1(c)
 #define InsSend(_dat,_len) { for (uint8_t i = 0; i< (_len); i++) InsSend1(_dat[i]); };
 #define InsUartSetBaudrate(_b) uart_periph_set_baudrate(INS_LINK, _b)
diff --git a/sw/airborne/modules/sensors/met_module.h b/sw/airborne/modules/sensors/met_module.h
index aa31c3719b2..98dd0207872 100644
--- a/sw/airborne/modules/sensors/met_module.h
+++ b/sw/airborne/modules/sensors/met_module.h
@@ -42,7 +42,7 @@
 #define MetBuffer() MetLinkDevice->char_available(MetLinkDevice->periph)
 #define MetGetch() MetLinkDevice->get_byte(MetLinkDevice->periph)
 #define ReadMetBuffer() { while (MetBuffer()&&!met_msg_received) parse_met_buffer(MetGetch()); }
-#define MetSend1(c) MetLinkDevice->transmit(MetLinkDevice->periph, c)
+#define MetSend1(c) MetLinkDevice->put_byte(MetLinkDevice->periph, c)
 #define MetUartSend1(c) MetSend1(c)
 #define MetSend(_dat,_len) { for (uint8_t i = 0; i< (_len); i++) MetSend1(_dat[i]); };
 #define MetUartSetBaudrate(_b) uart_periph_set_baudrate(&(MET_LINK), _b)
diff --git a/sw/airborne/subsystems/chibios-libopencm3/chibios_sdlog.c b/sw/airborne/subsystems/chibios-libopencm3/chibios_sdlog.c
index 137d773bad3..da43b645ba7 100644
--- a/sw/airborne/subsystems/chibios-libopencm3/chibios_sdlog.c
+++ b/sw/airborne/subsystems/chibios-libopencm3/chibios_sdlog.c
@@ -85,7 +85,7 @@ bool_t chibios_logInit(const bool_t binaryFile)
   // Configure generic device
   chibios_sdlog.device.periph = (void *)(&chibios_sdlog);
   chibios_sdlog.device.check_free_space = (check_free_space_t) sdlog_check_free_space;
-  chibios_sdlog.device.transmit = (transmit_t) sdlog_transmit;
+  chibios_sdlog.device.put_byte = (put_byte_t) sdlog_transmit;
   chibios_sdlog.device.send_message = (send_message_t) sdlog_send;
   chibios_sdlog.device.char_available = (char_available_t) null_function; // write only
   chibios_sdlog.device.get_byte = (get_byte_t) null_function; // write only
diff --git a/sw/airborne/subsystems/datalink/ivy_transport.c b/sw/airborne/subsystems/datalink/ivy_transport.c
index 81dd64daed5..93a66299dbe 100644
--- a/sw/airborne/subsystems/datalink/ivy_transport.c
+++ b/sw/airborne/subsystems/datalink/ivy_transport.c
@@ -196,7 +196,7 @@ void ivy_transport_init(void)
   ivy_tp.trans_tx.count_bytes = (count_bytes_t) count_bytes;
   ivy_tp.trans_tx.impl = (void *)(&ivy_tp);
   ivy_tp.device.check_free_space = (check_free_space_t) check_free_space;
-  ivy_tp.device.transmit = (transmit_t) transmit;
+  ivy_tp.device.put_byte = (put_byte_t) transmit;
   ivy_tp.device.send_message = (send_message_t) send_message;
   ivy_tp.device.char_available = (char_available_t) null_function;
   ivy_tp.device.get_byte = (get_byte_t) null_function;
diff --git a/sw/airborne/subsystems/datalink/pprz_transport.c b/sw/airborne/subsystems/datalink/pprz_transport.c
index e995397c0b1..375cb63cbc2 100644
--- a/sw/airborne/subsystems/datalink/pprz_transport.c
+++ b/sw/airborne/subsystems/datalink/pprz_transport.c
@@ -52,7 +52,7 @@ static void put_1byte(struct pprz_transport *trans, struct link_device *dev, con
 {
   trans->ck_a_tx += byte;
   trans->ck_b_tx += trans->ck_a_tx;
-  dev->transmit(dev->periph, byte);
+  dev->put_byte(dev->periph, byte);
 }
 
 static void put_bytes(struct pprz_transport *trans, struct link_device *dev,
@@ -82,17 +82,17 @@ static uint8_t size_of(struct pprz_transport *trans __attribute__((unused)), uin
 static void start_message(struct pprz_transport *trans, struct link_device *dev, uint8_t payload_len)
 {
   downlink.nb_msgs++;
-  dev->transmit(dev->periph, STX);
+  dev->put_byte(dev->periph, STX);
   const uint8_t msg_len = size_of(trans, payload_len);
-  dev->transmit(dev->periph, msg_len);
+  dev->put_byte(dev->periph, msg_len);
   trans->ck_a_tx = msg_len;
   trans->ck_b_tx = msg_len;
 }
 
 static void end_message(struct pprz_transport *trans, struct link_device *dev)
 {
-  dev->transmit(dev->periph, trans->ck_a_tx);
-  dev->transmit(dev->periph, trans->ck_b_tx);
+  dev->put_byte(dev->periph, trans->ck_a_tx);
+  dev->put_byte(dev->periph, trans->ck_b_tx);
   dev->send_message(dev->periph);
 }
 
diff --git a/sw/airborne/subsystems/datalink/pprzlog_transport.c b/sw/airborne/subsystems/datalink/pprzlog_transport.c
index 1fa3b170b37..0a47cdff2c5 100644
--- a/sw/airborne/subsystems/datalink/pprzlog_transport.c
+++ b/sw/airborne/subsystems/datalink/pprzlog_transport.c
@@ -51,7 +51,7 @@ struct pprzlog_transport pprzlog_tp;
 static void put_1byte(struct pprzlog_transport *trans, struct link_device *dev, const uint8_t byte)
 {
   trans->ck += byte;
-  dev->transmit(dev->periph, byte);
+  dev->put_byte(dev->periph, byte);
 }
 
 static void put_bytes(struct pprzlog_transport *trans, struct link_device *dev,
@@ -79,7 +79,7 @@ static uint8_t size_of(struct pprzlog_transport *trans __attribute__((unused)),
 
 static void start_message(struct pprzlog_transport *trans, struct link_device *dev, uint8_t payload_len)
 {
-  dev->transmit(dev->periph, STX_LOG);
+  dev->put_byte(dev->periph, STX_LOG);
   const uint8_t msg_len = size_of(trans, payload_len);
   trans->ck = 0;
   put_1byte(trans, dev, msg_len);
@@ -90,7 +90,7 @@ static void start_message(struct pprzlog_transport *trans, struct link_device *d
 
 static void end_message(struct pprzlog_transport *trans, struct link_device *dev)
 {
-  dev->transmit(dev->periph, trans->ck);
+  dev->put_byte(dev->periph, trans->ck);
   dev->send_message(dev->periph);
 }
 
diff --git a/sw/airborne/subsystems/datalink/superbitrf.c b/sw/airborne/subsystems/datalink/superbitrf.c
index c26a25b0f85..eecdbfd1773 100644
--- a/sw/airborne/subsystems/datalink/superbitrf.c
+++ b/sw/airborne/subsystems/datalink/superbitrf.c
@@ -243,7 +243,7 @@ void superbitrf_init(void)
   // Configure generic device
   superbitrf.device.periph = (void *)(&superbitrf);
   superbitrf.device.check_free_space = (check_free_space_t) superbitrf_check_free_space;
-  superbitrf.device.transmit = (transmit_t) superbitrf_transmit;
+  superbitrf.device.put_byte = (put_byte_t) superbitrf_transmit;
   superbitrf.device.send_message = (send_message_t) superbitrf_send;
   superbitrf.device.char_available = (char_available_t) null_function; // not needed
   superbitrf.device.get_byte = (get_byte_t) null_function; // not needed
diff --git a/sw/airborne/subsystems/datalink/uart_print.h b/sw/airborne/subsystems/datalink/uart_print.h
index 32bd9874337..97f16513dd0 100644
--- a/sw/airborne/subsystems/datalink/uart_print.h
+++ b/sw/airborne/subsystems/datalink/uart_print.h
@@ -39,7 +39,7 @@ static inline void print_string(struct link_device *dev, char *s)
 {
   uint8_t i = 0;
   while (s[i]) {
-    dev->transmit(dev->periph, s[i]);
+    dev->put_byte(dev->periph, s[i]);
     i++;
   }
 }
@@ -60,8 +60,8 @@ static inline void print_hex(struct link_device *dev, uint8_t c)
     '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
   uint8_t high = (c & 0xF0)>>4;
   uint8_t low  = c & 0x0F;
-  dev->transmit(dev->periph, hex[high]);
-  dev->transmit(dev->periph, hex[low]);
+  dev->put_byte(dev->periph, hex[high]);
+  dev->put_byte(dev->periph, hex[low]);
 }
 
 #define _PrintHex16(out_fun, c ) {    \
diff --git a/sw/airborne/subsystems/datalink/w5100.c b/sw/airborne/subsystems/datalink/w5100.c
index af11efe31ba..4b040e04885 100644
--- a/sw/airborne/subsystems/datalink/w5100.c
+++ b/sw/airborne/subsystems/datalink/w5100.c
@@ -251,7 +251,7 @@ void w5100_init(void)
   // Configure generic device
   chip0.device.periph = (void *)(&chip0);
   chip0.device.check_free_space = (check_free_space_t) true_function;
-  chip0.device.transmit = (transmit_t) dev_transmit;
+  chip0.device.put_byte = (put_byte_t) dev_transmit;
   chip0.device.send_message = (send_message_t) dev_send;
   chip0.device.char_available = (char_available_t) dev_char_available;
   chip0.device.get_byte = (get_byte_t) dev_getch;
diff --git a/sw/airborne/subsystems/datalink/xbee.c b/sw/airborne/subsystems/datalink/xbee.c
index e80963ba80e..c23e8096951 100644
--- a/sw/airborne/subsystems/datalink/xbee.c
+++ b/sw/airborne/subsystems/datalink/xbee.c
@@ -56,7 +56,7 @@ struct xbee_transport xbee_tp;
 static void put_1byte(struct xbee_transport *trans, struct link_device *dev, const uint8_t byte)
 {
   trans->cs_tx += byte;
-  dev->transmit(dev->periph, byte);
+  dev->put_byte(dev->periph, byte);
 }
 
 static void put_bytes(struct xbee_transport *trans, struct link_device *dev,
@@ -86,10 +86,10 @@ static uint8_t size_of(struct xbee_transport *trans __attribute__((unused)), uin
 static void start_message(struct xbee_transport *trans, struct link_device *dev, uint8_t payload_len)
 {
   downlink.nb_msgs++;
-  dev->transmit(dev->periph, XBEE_START);
+  dev->put_byte(dev->periph, XBEE_START);
   const uint16_t len = payload_len + XBEE_API_OVERHEAD;
-  dev->transmit(dev->periph, (len >> 8));
-  dev->transmit(dev->periph, (len & 0xff));
+  dev->put_byte(dev->periph, (len >> 8));
+  dev->put_byte(dev->periph, (len & 0xff));
   trans->cs_tx = 0;
   const uint8_t header[] = XBEE_TX_HEADER;
   put_bytes(trans, dev, DL_TYPE_UINT8, DL_FORMAT_SCALAR, XBEE_TX_OVERHEAD + 1, header);
@@ -98,7 +98,7 @@ static void start_message(struct xbee_transport *trans, struct link_device *dev,
 static void end_message(struct xbee_transport *trans, struct link_device *dev)
 {
   trans->cs_tx = 0xff - trans->cs_tx;
-  dev->transmit(dev->periph, trans->cs_tx);
+  dev->put_byte(dev->periph, trans->cs_tx);
   dev->send_message(dev->periph);
 }
 
diff --git a/sw/airborne/subsystems/gps/gps_furuno.c b/sw/airborne/subsystems/gps/gps_furuno.c
index efc28051a6c..c86275e69b1 100644
--- a/sw/airborne/subsystems/gps/gps_furuno.c
+++ b/sw/airborne/subsystems/gps/gps_furuno.c
@@ -68,7 +68,7 @@ void nmea_parse_prop_init(void)
     // Check if there is enough space to send the config msg
     if (GpsLinkDevice->check_free_space(GpsLinkDevice->periph, len + 6)) {
       for (j = 0; j < len + 6; j++) {
-        GpsLinkDevice->transmit(GpsLinkDevice->periph, buf[j]);
+        GpsLinkDevice->put_byte(GpsLinkDevice->periph, buf[j]);
       }
     } else {
       break;
diff --git a/sw/airborne/subsystems/gps/gps_mtk.c b/sw/airborne/subsystems/gps/gps_mtk.c
index 5a61336b6bb..8591d8fd581 100644
--- a/sw/airborne/subsystems/gps/gps_mtk.c
+++ b/sw/airborne/subsystems/gps/gps_mtk.c
@@ -422,7 +422,7 @@ void gps_mtk_parse(uint8_t c)
 static void MtkSend_CFG(char *dat)
 {
   struct link_device *dev = &((GPS_LINK).device);
-  while (*dat != 0) { dev->transmit(dev->periph, *dat++); }
+  while (*dat != 0) { dev->put_byte(dev->periph, *dat++); }
 }
 
 void gps_configure_uart(void)
diff --git a/sw/airborne/subsystems/gps/gps_ubx.c b/sw/airborne/subsystems/gps/gps_ubx.c
index af4bf06b62c..0a74c1cd367 100644
--- a/sw/airborne/subsystems/gps/gps_ubx.c
+++ b/sw/airborne/subsystems/gps/gps_ubx.c
@@ -275,15 +275,15 @@ void gps_ubx_parse(uint8_t c)
 
 static void ubx_send_1byte(struct link_device *dev, uint8_t byte)
 {
-  dev->transmit(dev->periph, byte);
+  dev->put_byte(dev->periph, byte);
   gps_ubx.send_ck_a += byte;
   gps_ubx.send_ck_b += gps_ubx.send_ck_a;
 }
 
 void ubx_header(struct link_device *dev, uint8_t nav_id, uint8_t msg_id, uint16_t len)
 {
-  dev->transmit(dev->periph, UBX_SYNC1);
-  dev->transmit(dev->periph, UBX_SYNC2);
+  dev->put_byte(dev->periph, UBX_SYNC1);
+  dev->put_byte(dev->periph, UBX_SYNC2);
   gps_ubx.send_ck_a = 0;
   gps_ubx.send_ck_b = 0;
   ubx_send_1byte(dev, nav_id);
@@ -294,8 +294,8 @@ void ubx_header(struct link_device *dev, uint8_t nav_id, uint8_t msg_id, uint16_
 
 void ubx_trailer(struct link_device *dev)
 {
-  dev->transmit(dev->periph, gps_ubx.send_ck_a);
-  dev->transmit(dev->periph, gps_ubx.send_ck_b);
+  dev->put_byte(dev->periph, gps_ubx.send_ck_a);
+  dev->put_byte(dev->periph, gps_ubx.send_ck_b);
   dev->send_message(dev->periph);
 }