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