29 	int rv = 0, h, i, j, devs_no;  in main()  local
92 	if ((rv = ub_dev_open(h)) != 0) {  in main()
93 		errf("open device %d error %d\n", h, rv);  in main()
96 	if ((rv = ub_dev_open(h)) != 0)  in main()
97 		errf("open device %d error %d\n", h, rv);  in main()
115 		if ((rv = ub_dev_open(i)) != 0)  in main()
116 			errf("open device %d error %d\n", i, rv);  in main()
118 		else if ((rv = ub_dev_read(i, buf, 1, 0, &rlen)) != 0)  in main()
119 			errf("could not read from device %d, error %d\n", i, rv);  in main()
140 		if ((rv = ub_dev_open(i)) != 0)  in main()
141 			errf("open device %d error %d\n", i, rv);  in main()
142 		else if ((rv = ub_dev_send(i, &buf, 2048)) != 0)  in main()
143 			errf("could not send to device %d, error %d\n", i, rv);  in main()
198 	return rv;  in main()