renamed serial_read_buffer to serial_read_byte to make its intention clear

ports.h

@@ -5,5 +5,5 @@
 
 void serialport_write_byte(const u16, const u16);
 
-u8 serial_read_buffer(const u16);
+u8 serial_read_byte(const u16);
 #endif /* INCLUDE_IO_H */

ports.s

@@ -2,7 +2,7 @@
 ; written in asm
 
 global serialport_write_byte
-global serial_read_buffer
+global serial_read_byte
 
 ; write a byte  
 ;serialport_write_byte
@@ -14,7 +14,7 @@ serialport_write_byte:
 
 ; Read byte from serial port
 ;serialport_read_byte
-serial_read_buffer:
+serial_read_byte:
 	mov dx, [esp + 4] 	; grab the address of the targeted port
 	in al, dx 			; read byte from the port 
 	ret

serial.c

@@ -35,7 +35,7 @@ void serial_configure_line(const u16 line, const u8 payload) {
 
 u8 serial_fifo_empty(const u16 com_port) {
 	// we get back 0x20 if it is empty
-	return serial_read_buffer(SERIAL_LINE_STATUS_PORT(com_port)) & 
+	return serial_read_byte(SERIAL_LINE_STATUS_PORT(com_port)) & 
 		SERIAL_FIFO_EMPTY_CODE;
 }