tag	line	file	source code
RS_EVENT_HUP_PGRP	264	kernel/chr_drv/serial.c	rs_sched_event(line, info, RS_EVENT_HUP_PGRP);
RS_EVENT_HUP_PGRP	363	kernel/chr_drv/serial.c	if (!clear_bit(RS_EVENT_HUP_PGRP, &info->event)) {