1 /**
2 * \file reset.c
3 * Example program that resets the device.
4 *
5 * Copyright (C) 2007 Linus Walleij <triad@df.lth.se>
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
21 */
22 #include "common.h"
23
24 /**
25 * Returns 0 if OK (yes), 1 if not OK (no)
26 */
prompt()27 static int prompt()
28 {
29 char buff[2];
30
31 while (1) {
32 fprintf(stdout, "> ");
33 if ( fgets(buff, sizeof(buff), stdin) == NULL ) {
34 if (ferror(stdin)) {
35 fprintf(stderr, "File error on stdin\n");
36 } else {
37 fprintf(stderr, "EOF on stdin\n");
38 }
39 return 1;
40 }
41 if (buff[0] == 'y') {
42 return 0;
43 } else if (buff[0] == 'n') {
44 return 1;
45 }
46 }
47 }
48
main(int argc,char ** argv)49 int main (int argc, char **argv)
50 {
51 LIBMTP_mtpdevice_t *device;
52 int ret;
53
54 fprintf(stdout, "libmtp version: " LIBMTP_VERSION_STRING "\n\n");
55
56 LIBMTP_Init();
57 device = LIBMTP_Get_First_Device();
58 if (device == NULL) {
59 printf("No devices.\n");
60 return 0;
61 }
62
63 printf("I will now reset your device. This means that\n");
64 printf("the device may go inactive immediately and may report errors.\n");
65 printf("Continue? (y/n)\n");
66 if (prompt() == 0) {
67 ret = LIBMTP_Reset_Device(device);
68 } else {
69 printf("Aborted.\n");
70 ret = 0;
71 }
72
73 if ( ret != 0 ) {
74 printf("Failed to reset device.\n");
75 LIBMTP_Dump_Errorstack(device);
76 LIBMTP_Clear_Errorstack(device);
77 LIBMTP_Release_Device(device);
78 return 1;
79 }
80
81 // It is not possible to release the device after successful reset!
82 // LIBMTP_Release_Device(device);
83 printf("OK.\n");
84 return 0;
85 }
86