CHB_SPECIAL       239 drivers/tty/serial/ip22zilog.h #define CHB_SPECIAL	0x06
CHB_SPECIAL       334 drivers/tty/serial/pmac_zilog.h #define	CHB_SPECIAL	0x06
CHB_SPECIAL       243 drivers/tty/serial/sunzilog.h #define CHB_SPECIAL	0x06