19 void drop_privileges(int fd, uint32_t mask)  in drop_privileges()  argument
23 	res = ioctl(fd, USBDEVFS_DROP_PRIVILEGES, &mask);  in drop_privileges()
30 void reset_device(int fd)  in reset_device()  argument
34 	res = ioctl(fd, USBDEVFS_RESET);  in reset_device()
42 void claim_some_intf(int fd)  in claim_some_intf()  argument
47 		res = ioctl(fd, USBDEVFS_CLAIMINTERFACE, &i);  in claim_some_intf()
59 	int c, fd;  in main()  local
61 	fd = open(argv[1], O_RDWR);  in main()
62 	if (fd < 0) {  in main()
71 	ioctl(fd, USBDEVFS_GET_CAPABILITIES, &caps);  in main()
81 	drop_privileges(fd, -1U);  in main()
95 			reset_device(fd);  in main()
98 			claim_some_intf(fd);  in main()
103 			drop_privileges(fd, mask);  in main()
113 	close(fd);  in main()
117 	close(fd);  in main()