Clean: harmonizing & header-commenting code

src/drivers/kb.h

@@ -1,6 +1,18 @@
+// Keyboard driver header
+// Author: xamidev
+// Licensed under the Unlicense. See the repo below.
+// https//github.com/xamidev/blankos
+
 #ifndef KB_H
 #define KB_H
 
+#define KEYBOARD_BUFFER_SIZE    256
+
+#define LEFT_SHIFT_PRESSED      0x2A
+#define RIGHT_SHIFT_PRESSED     0x36
+#define LEFT_SHIFT_RELEASED     0xAA
+#define RIGHT_SHIFT_RELEASED    0xB6
+
 char keyboard_getchar();
 
 #endif