CHA_Rx_AVAIL      242 drivers/tty/serial/ip22zilog.h #define CHA_Rx_AVAIL	0x0c
CHA_Rx_AVAIL      337 drivers/tty/serial/pmac_zilog.h #define	CHA_Rx_AVAIL	0x0c
CHA_Rx_AVAIL      246 drivers/tty/serial/sunzilog.h #define CHA_Rx_AVAIL	0x0c