diff --git a/converter/ps2_usb/Makefile b/converter/ps2_usb/Makefile
index f20039c6..1dd23c15 100644
--- a/converter/ps2_usb/Makefile
+++ b/converter/ps2_usb/Makefile
@@ -91,19 +91,6 @@ PS2_USE_USART = yes	# uses hardware USART engine for PS/2 signal receive(recomen
 #PS2_USE_INT = yes	# uses external interrupt for falling edge of PS/2 clock pin
 #PS2_USE_BUSYWAIT = yes	# uses primitive reference code
 
-# Serial Mouse Options
-#   You can choose a mouse protocol and the implementation of
-#   the underlying serial connection.
-#
-#SERIAL_MOUSE_MICROSOFT_ENABLE = yes	# Enable support for Microsoft-compatible mice
-#SERIAL_MOUSE_MOUSESYSTEMS_ENABLE = yes	# Enable support for Mousesystems-compatible mice
-#SERIAL_MOUSE_USE_UART = yes		# use hardware UART for serial connection
-#SERIAL_MOUSE_USE_SOFT = yes		# use software serial implementation
-
-# Optional serial mouse driver features
-# Support scrolling while holding the middle mouse button
-# (currently only supported for Mousesystems mice):
-#OPT_DEFS += -DSERIAL_MOUSE_CENTER_SCROLL
 
 # Optimize size but this may cause error "relocation truncated to fit"
 #EXTRALDFLAGS = -Wl,--relax
diff --git a/converter/ps2_usb/config.h b/converter/ps2_usb/config.h
index 5b644002..c9bab1b0 100644
--- a/converter/ps2_usb/config.h
+++ b/converter/ps2_usb/config.h
@@ -69,7 +69,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define PS2_DATA_PORT   PORTD
 #define PS2_DATA_PIN    PIND
 #define PS2_DATA_DDR    DDRD
-#define PS2_DATA_BIT    0
+#define PS2_DATA_BIT    2
 #define PS2_INT_INIT()  do {    \
     EICRA |= ((1<<ISC11) |      \
               (0<<ISC10));      \
@@ -170,42 +170,4 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #endif
 #endif
 
-#ifdef SERIAL_MOUSE_MICROSOFT
-    /*
-     * Serial(USART) configuration (for Microsoft serial mice)
-     *     asynchronous, positive logic, 1200baud, bit order: LSB first
-     *     1-start bit, 7-data bit, no parity, 1-stop bit
-     */
-    #define SERIAL_UART_BAUD       1200
-    #define SERIAL_UART_DATA       UDR1
-    #define SERIAL_UART_UBRR       ((F_CPU/(16UL*SERIAL_UART_BAUD))-1)
-    #define SERIAL_UART_RXD_VECT   USART1_RX_vect
-    #define SERIAL_UART_TXD_READY  (UCSR1A&(1<<UDRE1))
-    #define SERIAL_UART_INIT()     do { \
-        UBRR1L = (uint8_t) SERIAL_UART_UBRR;       /* baud rate */ \
-        UBRR1H = (uint8_t) (SERIAL_UART_UBRR>>8);  /* baud rate */ \
-        UCSR1B |= (1<<RXCIE1) | (1<<RXEN1); /* RX interrupt, RX: enable */ \
-        UCSR1C = (1<<UCSZ11) | (0<<UCSZ10);  /* no parity, 1 stop bit, 7-bit characters */ \
-        sei(); \
-    } while(0)
-#elif defined(SERIAL_MOUSE_MOUSESYSTEMS)
-    /*
-     * Serial(USART) configuration (for Mousesystems serial mice)
-     *     asynchronous, positive logic, 1200baud, bit order: LSB first
-     *     1-start bit, 8-data bit, no parity, 1-stop bit
-     */
-    #define SERIAL_UART_BAUD       1200
-    #define SERIAL_UART_DATA       UDR1
-    #define SERIAL_UART_UBRR       ((F_CPU/(16UL*SERIAL_UART_BAUD))-1)
-    #define SERIAL_UART_RXD_VECT   USART1_RX_vect
-    #define SERIAL_UART_TXD_READY  (UCSR1A&(1<<UDRE1))
-    #define SERIAL_UART_INIT()     do { \
-        UBRR1L = (uint8_t) SERIAL_UART_UBRR;       /* baud rate */ \
-        UBRR1H = (uint8_t) (SERIAL_UART_UBRR>>8);  /* baud rate */ \
-        UCSR1B |= (1<<RXCIE1) | (1<<RXEN1); /* RX interrupt, RX: enable */ \
-        UCSR1C = (1<<UCSZ11) | (1<<UCSZ10);  /* no parity, 1 stop bit, 8-bit characters */ \
-        sei(); \
-    } while(0)
-#endif
-
 #endif