CHB_Tx_EMPTY      236 drivers/tty/serial/ip22zilog.h #define CHB_Tx_EMPTY	0x00
CHB_Tx_EMPTY      331 drivers/tty/serial/pmac_zilog.h #define	CHB_Tx_EMPTY	0x00
CHB_Tx_EMPTY      240 drivers/tty/serial/sunzilog.h #define CHB_Tx_EMPTY	0x00