Symbol: ZS_TX_ACTIVE
drivers/tty/serial/ip22zilog.c
236
if (ZS_TX_ACTIVE(up)) {
drivers/tty/serial/pmac_zilog.c
187
if (ZS_TX_ACTIVE(uap)) {
drivers/tty/serial/sunzilog.c
272
if (ZS_TX_ACTIVE(up)) {