diff --git a/drivers/tdisp/HD44780/tdisp_lld.c b/drivers/tdisp/HD44780/tdisp_lld.c
index 2c28d8a3..29efbf92 100644
--- a/drivers/tdisp/HD44780/tdisp_lld.c
+++ b/drivers/tdisp/HD44780/tdisp_lld.c
@@ -43,7 +43,7 @@ static void _writeData(uint8_t data) {
 	chThdSleepMicroseconds(5);
 }
 
-void TDISP_LLD(write_cmd)(uint8_t data) {
+void tdisp_lld_write_cmd(uint8_t data) {
 	setpin_rs(FALSE);
 	setpin_rw(FALSE);
 
@@ -53,7 +53,7 @@ void TDISP_LLD(write_cmd)(uint8_t data) {
 	_writeData(data);
 }
 
-void TDISP_LLD(write_data)(uint8_t data) {
+void tdisp_lld_write_data(uint8_t data) {
 	setpin_rs(TRUE);
 	setpin_rw(FALSE);
 
@@ -63,47 +63,47 @@ void TDISP_LLD(write_data)(uint8_t data) {
 	_writeData(data);
 }
 
-bool_t TDISP_LLD(init)(void) { 
+bool_t tdisp_lld_init(void) { 
 	/* initialise MCU hardware */
 	init_board();
 
 	/* wait some time */
 	chThdSleepMilliseconds(50);
 
-	TDISP_LLD(write_cmd)(0x38);
+	tdisp_lld_write_cmd(0x38);
 	chThdSleepMilliseconds(64);
 
-	TDISP_LLD(write_cmd)(0x0f);	
+	tdisp_lld_write_cmd(0x0f);	
 	chThdSleepMicroseconds(50);
 
-	TDISP_LLD(write_cmd)(0x01);
+	tdisp_lld_write_cmd(0x01);
 	chThdSleepMilliseconds(5);
 
-	TDISP_LLD(write_cmd)(0x06);
+	tdisp_lld_write_cmd(0x06);
 	chThdSleepMicroseconds(50);
 
 	return TRUE;
 }
 
-void TDISP_LLD(set_cursor)(coord_t col, coord_t row) {
+void tdisp_lld_set_cursor(coord_t col, coord_t row) {
 	uint8_t row_offsets[] = { 0x00, 0x40, 0x14, 0x54 };
 
 	if(row >= TDISP_ROWS)
 		row = TDISP_ROWS - 1;
 
-	TDISP_LLD(write_cmd)(0x80 | (col + row_offsets[row]));
+	tdisp_lld_write_cmd(0x80 | (col + row_offsets[row]));
 }
 
-void TDISP_LLD(create_char)(uint8_t address, char *charmap) {
+void tdisp_lld_create_char(uint8_t address, char *charmap) {
 	uint8_t i;
 
 	/* make sure we don't write somewhere we're not supposed to */
 	address &= TDISP_MAX_CUSTOM_CHARS;
 
-	TDISP_LLD(write_cmd)(0x40 | (address << 3));
+	tdisp_lld_write_cmd(0x40 | (address << 3));
 
 	for(i = 0; i < 8; i++) {
-		TDISP_LLD(write_data)(charmap[i]);
+		tdisp_lld_write_data(charmap[i]);
 	}
 }
 
diff --git a/drivers/tdisp/HD44780/tdisp_lld_config.h b/drivers/tdisp/HD44780/tdisp_lld_config.h
index 00032eaa..3b37cd70 100644
--- a/drivers/tdisp/HD44780/tdisp_lld_config.h
+++ b/drivers/tdisp/HD44780/tdisp_lld_config.h
@@ -36,7 +36,6 @@
 /*===========================================================================*/
 
 #define TDISP_DRIVER_NAME				"HD44780"
-#define TDISP_LLD(x)					tdisp_lld_##x##_HD44780
 
 #define TDISP_MAX_CUSTOM_CHARS			0x07
 
diff --git a/include/tdisp/lld/tdisp_lld.h b/include/tdisp/lld/tdisp_lld.h
index a8f2e4b1..8650d887 100644
--- a/include/tdisp/lld/tdisp_lld.h
+++ b/include/tdisp/lld/tdisp_lld.h
@@ -37,9 +37,11 @@
 extern "C" {
 #endif
 
-extern bool_t foo(void);
-extern void write_cmd(uint8_t data);
-extern void write_data(uint8_t data);
+extern void		tdisp_lld_write_cmd(uint8_t data);
+extern void		tdisp_lld_write_data(uint8_t data);
+extern bool_t	tdisp_lld_init(void);
+extern void 	tdisp_lld_set_cursor(coord_t col, coord_t row);
+extern void		tdisp_lld_create_char(uint8_t address, char *charmap);
 
 #ifdef __cplusplus
 }
diff --git a/src/tdisp/tdisp.c b/src/tdisp/tdisp.c
index 38fd56d8..a7e0745d 100644
--- a/src/tdisp/tdisp.c
+++ b/src/tdisp/tdisp.c
@@ -36,7 +36,7 @@ static uint8_t _displaycontrol;
 bool_t tdispInit(void) {
 	bool_t ret;
 
-	ret = TDISP_LLD(init)();
+	ret = tdisp_lld_init();
 
 	return ret;
 }
@@ -45,49 +45,49 @@ void tdispSetAttributes(uint8_t attributes) {
 	switch(attributes) {
 		case TDISP_ON:
 			_displaycontrol |= 0x04;
-			TDISP_LLD(write_cmd)(0x08 | _displaycontrol);
+			tdisp_lld_write_cmd(0x08 | _displaycontrol);
 			break;
 		case TDISP_OFF:
 			_displaycontrol &=~ 0x04;
-			TDISP_LLD(write_cmd)(0x08 | _displaycontrol);
+			tdisp_lld_write_cmd(0x08 | _displaycontrol);
 			break;
 		case TDISP_CURSOR_ON:
 			_displaycontrol |= 0x02;
-			TDISP_LLD(write_cmd)(0x08 | _displaycontrol);
+			tdisp_lld_write_cmd(0x08 | _displaycontrol);
 			break;
 		case TDISP_CURSOR_OFF:
 			_displaycontrol &=~ 0x02;
-			TDISP_LLD(write_cmd)(0x08 | _displaycontrol);
+			tdisp_lld_write_cmd(0x08 | _displaycontrol);
 			break;
 		case TDISP_CURSOR_BLINK_ON:
 			_displaycontrol |= 0x00;
-			TDISP_LLD(write_cmd)(0x08 | _displaycontrol);
+			tdisp_lld_write_cmd(0x08 | _displaycontrol);
 			break;
 		case TDISP_CURSOR_BLINK_OFF:
 			_displaycontrol &=~ 0x00;
-			TDISP_LLD(write_cmd)(0x08 | _displaycontrol);
+			tdisp_lld_write_cmd(0x08 | _displaycontrol);
 			break;
 	}
 }
 
 void tdispClear(void) {
-	TDISP_LLD(write_cmd)(0x01);
+	tdisp_lld_write_cmd(0x01);
 }
 
 void tdispHome(void) {
-	TDISP_LLD(write_cmd)(0x02);
+	tdisp_lld_write_cmd(0x02);
 }
 
 void tdispCreateChar(uint8_t address, char *charmap) {
-	TDISP_LLD(create_char)(address, charmap);
+	tdisp_lld_create_char(address, charmap);
 }
 
 void tdispSetCursor(coord_t col, coord_t row) {
-	TDISP_LLD(set_cursor)(col, row);
+	tdisp_lld_set_cursor(col, row);
 }
 
 void tdispDrawChar(char c) {
-	TDISP_LLD(write_data)(c);
+	tdisp_lld_write_data(c);
 }
 
 void tdispDrawString(char *s) {