KEY_BACKSPACE     419 include/linux/hil.h    KEY_EQUAL,		KEY_BACKSPACE,	KEY_INS_LINE,	KEY_DEL_LINE,	\
KEY_BACKSPACE     435 include/linux/hil.h   KEY_MINUS,	KEY_EQUAL,	KEY_BACKSPACE,	KEY_TAB,		\
KEY_BACKSPACE     128 scripts/kconfig/lxdialog/inputbox.c 			case KEY_BACKSPACE: