48 	int fd, opt, ret = -EINVAL;  in linux_socketcan_iface_open()  local
50 	fd = socket(PF_CAN, SOCK_RAW, CAN_RAW);  in linux_socketcan_iface_open()
51 	if (fd < 0) {  in linux_socketcan_iface_open()
60 	ret = ioctl(fd, SIOCGIFINDEX, (void *)&ifr);  in linux_socketcan_iface_open()
62 		close(fd);  in linux_socketcan_iface_open()
69 	ret = bind(fd, (struct sockaddr *)&addr, sizeof(addr));  in linux_socketcan_iface_open()
71 		close(fd);  in linux_socketcan_iface_open()
77 	ret = setsockopt(fd, SOL_CAN_RAW, CAN_RAW_RECV_OWN_MSGS, &opt, sizeof(opt));  in linux_socketcan_iface_open()
79 		close(fd);  in linux_socketcan_iface_open()
83 	return fd;  in linux_socketcan_iface_open()
86 int linux_socketcan_iface_close(int fd)  in linux_socketcan_iface_close()  argument
88 	return close(fd);  in linux_socketcan_iface_close()
91 int linux_socketcan_poll_data(int fd)  in linux_socketcan_poll_data()  argument
99 	FD_SET(fd, &rset);  in linux_socketcan_poll_data()
104 	ret = select(fd + 1, &rset, NULL, NULL, &timeout);  in linux_socketcan_poll_data()
108 		if (FD_ISSET(fd, &rset)) {  in linux_socketcan_poll_data()
116 int linux_socketcan_read_data(int fd, void *buf, size_t buf_len, bool *msg_confirm)  in linux_socketcan_read_data()  argument
128 	int ret = (int)recvmsg(fd, &msg, MSG_WAITALL);  in linux_socketcan_read_data()
148 int linux_socketcan_set_mode_fd(int fd, bool mode_fd)  in linux_socketcan_set_mode_fd()  argument
152 	return setsockopt(fd, SOL_CAN_RAW, CAN_RAW_FD_FRAMES, &opt, sizeof(opt));  in linux_socketcan_set_mode_fd()