9  * Usage: debug-trigger [SOURCE] [SINK]
12  *  --sink-actions=ACTION
13  *	Set the class of sink action(s) to be used. Can take the value of 'sysrq' or 'dbus'.
18  *	Set the source as stdin, the sink as stdout, and use the default 'sysrq' set of sink
21  *  debug-trigger --sink-actions=sysrq
22  *	Explicitly use the 'sysrq' set of sink actions with stdin as the source and stdout as the
23  *	sink.
26  *	Open /dev/serio_raw0 as the source and /proc/sysrq-trigger as the sink, with the default
27  *	'sysrq' set of sink actions. When 'D' is read from /dev/serio_raw0 'c' will be written to
31  *  dbug-trigger --sink-actions=dbus /dev/serio_raw0
32  *	Open /dev/serio_raw0 as the source and configure the 'dbus' set of sink actions. When 'D' is
92 	int sink;  member
108 	if ((rc = write(sysrq->sink, &action, sizeof(action))) == sizeof(action))  in sysrq_sink_debug()
127 	if ((rc = write(sysrq->sink, &action, sizeof(action))) == sizeof(action))  in sysrq_sink_reboot()
466 static int process(struct debug_source *source, struct debug_sink *sink)  in process()  argument
475 			sink->ops->debug(sink->ctx);  in process()
479 			sink->ops->reboot(sink->ctx);  in process()
500 	struct debug_sink sink;  in main()  local
509 			{"sink-actions", required_argument, 0, 's'},  in main()
528 	 * The default behaviour sets the source file descriptor as stdin and the sink file  in main()
559 	 * Handle the sink path argument, if any. If sink_actions hasn't been set via the  in main()
560 	 * --sink-actions option, then default to 'sysrq'. Otherwise, if --sink-actions=sysrq has  in main()
561 	 * been passed, do as we're told and use the 'sysrq' sink actions.  in main()
566 			 * Just open the sink path directly. If we ever need different behaviour  in main()
570 				err(EXIT_FAILURE, "Failed to open sink %s", argv[optind]);  in main()
579 		sysrq_sink.sink = sinkfd;  in main()
580 		sink.ops = &sysrq_sink_ops;  in main()
581 		sink.ctx = &sysrq_sink;  in main()
584 	/* Set up the dbus sink actions if requested via --sink-actions=dbus */  in main()
602 		sink.ops = &dbus_sink_ops;  in main()
603 		sink.ctx = &dbus_sink;  in main()
613 	if (!(sink.ops && sink.ctx))  in main()
614 		errx(EXIT_FAILURE, "Unrecognised sink: %s", sink_actions);  in main()
616 	/* Trigger the actions on the sink when we receive an event from the source */  in main()
617 	if (process(&source, &sink) < 0)  in main()