PMACZILOG_FLAG_IS_CHANNEL_A
pmz_ports[count].flags = PMACZILOG_FLAG_IS_CHANNEL_A;
pmz_ports[0].flags = PMACZILOG_FLAG_IS_CHANNEL_A;
#define ZS_IS_CHANNEL_A(UP) ((UP)->flags & PMACZILOG_FLAG_IS_CHANNEL_A)
if (uap->flags & PMACZILOG_FLAG_IS_CHANNEL_A)