Fix bug of matrix scan

keyboard/lr96/keymap_common.h

@@ -1,5 +1,5 @@
 /*
-Copyright 2012,2013 Jun Wako <wakojun@gmail.com>
+Copyright 2014 Kai Ryu <kai1103@gmail.com>
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by

keyboard/lr96/matrix.c

@@ -149,7 +149,7 @@ static void  init_cols(void)
  */
 static matrix_row_t read_cols(void)
 {
-     return PIND & ~(1<<PD7);
+     return ~PIND & ~(1<<PD7);
 }
 
 /* Row pin configuration
@@ -174,7 +174,7 @@ static matrix_row_t read_cols(void)
  */
 static void unselect_rows(void)
 {
-    // Output low(DDR:1, PORT:0) to unselect
+    // Output high(DDR:1, PORT:1) to unselect
     DDRB  |= (1<<PB0);
     PORTB |= (1<<PB0);
 }