47 		fprintf(stderr, "Failed to open %s\n", chrdev_name);  in monitor_device()
65 		fprintf(stderr,  in monitor_device()
72 		fprintf(stdout, "Monitoring line %d on %s\n", lines[0], device_name);  in monitor_device()
73 		fprintf(stdout, "Initial line value: %d\n",  in monitor_device()
76 		fprintf(stdout, "Monitoring lines %d", lines[0]);  in monitor_device()
78 			fprintf(stdout, ", %d", lines[i]);  in monitor_device()
79 		fprintf(stdout, " and %d on %s\n", lines[i], device_name);  in monitor_device()
80 		fprintf(stdout, "Initial line values: %d",  in monitor_device()
83 			fprintf(stdout, ", %d",  in monitor_device()
85 		fprintf(stdout, " and %d\n",  in monitor_device()
96 				fprintf(stderr, "nothing available\n");  in monitor_device()
100 				fprintf(stderr, "Failed to read event (%d)\n",  in monitor_device()
107 			fprintf(stderr, "Reading event failed\n");  in monitor_device()
111 		fprintf(stdout, "GPIO EVENT at %" PRIu64 " on line %d (%d|%d) ",  in monitor_device()
116 			fprintf(stdout, "rising edge");  in monitor_device()
119 			fprintf(stdout, "falling edge");  in monitor_device()
122 			fprintf(stdout, "unknown event");  in monitor_device()
124 		fprintf(stdout, "\n");  in monitor_device()
144 	fprintf(stderr, "Usage: gpio-event-mon [options]...\n"  in print_usage()