1 /* 2 * This file and its contents are supplied under the terms of the 3 * Common Development and Distribution License ("CDDL"), version 1.0. 4 * You may only use this file in accordance with the terms of version 5 * 1.0 of the CDDL. 6 * 7 * A full copy of the text of the CDDL should have accompanied this 8 * source. A copy of the CDDL is also available via the Internet at 9 * http://www.illumos.org/license/CDDL. 10 */ 11 12 /* 13 * Copyright 2019, Joyent, Inc. 14 */ 15 16 /* 17 * Open up a device and make sure we get pollout by default. 18 */ 19 20 #include <err.h> 21 #include <stdlib.h> 22 #include <sys/types.h> 23 #include <sys/stat.h> 24 #include <fcntl.h> 25 #include <strings.h> 26 #include <unistd.h> 27 #include <errno.h> 28 #include <poll.h> 29 30 #include <sys/usb/clients/ccid/uccid.h> 31 32 int 33 main(int argc, char *argv[]) 34 { 35 int fd, ret; 36 struct pollfd pfds[1]; 37 uccid_cmd_txn_begin_t begin; 38 39 if (argc != 2) { 40 errx(EXIT_FAILURE, "missing required ccid path"); 41 } 42 43 if ((fd = open(argv[1], O_RDWR)) < 0) { 44 err(EXIT_FAILURE, "failed to open %s", argv[1]); 45 } 46 47 bzero(&begin, sizeof (begin)); 48 begin.uct_version = UCCID_CURRENT_VERSION; 49 if (ioctl(fd, UCCID_CMD_TXN_BEGIN, &begin) != 0) { 50 err(EXIT_FAILURE, "failed to issue begin ioctl"); 51 } 52 53 pfds[0].fd = fd; 54 pfds[0].events = POLLIN; 55 pfds[0].revents = 0; 56 57 ret = poll(pfds, 1, 0); 58 if (ret != 0) { 59 err(EXIT_FAILURE, "poll didn't return 0, returned %d " 60 "(errno %d)", ret, errno); 61 } 62 63 return (0); 64 } 65