1 /*
2 *
3 * Copyright (c) International Business Machines Corp., 2001
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 *
19 *
20 * This file will include functions that will drive the
21 * kernel module tusb to test various usb functions
22 * and kernel calls. Each function will need to setup the tif
23 * structure so that the in parameters and out parameters
24 * are correctly initialized
25 *
26 * use tif structure for passing params between user
27 * space and kernel space, in some tests it is really
28 * not needed but makes easy to maintain all tests if
29 * have the same process to read in params in the
30 * kernel module no matter what the test is
31 *
32 * author: Sean Ruyle (srruyle@us.ibm.com)
33 * date: 6/4/2003
34 *
35 * tusb_ki.c
36 */
37
38 #include <stdlib.h>
39 #include <stdio.h>
40 #include <sys/ioctl.h>
41 #include "../tusb/tusb.h"
42
43 /*
44 * this generic function can be used
45 * for any test calls that need no
46 * additional setup beyond the normal
47 * for making the ioctl call,
48 * if the additional setup, ie: input
49 * or output values are needed, set
50 * tif in_data and out_data values
51 * along with the corresponding length
52 * in a more specific function
53 */
ki_generic(int fd,int flag)54 int ki_generic(int fd, int flag)
55 {
56 int rc;
57 tusb_interface_t tif;
58
59 /*
60 * build interface structure
61 */
62 tif.in_len = 0;
63 tif.in_data = 0;
64 tif.out_len = 0;
65 tif.out_data = 0;
66 tif.out_rc = 0;
67
68 /*
69 * ioctl call for flag
70 */
71 rc = ioctl(fd, flag, &tif);
72 if (rc) {
73 printf("Ioctl error\n");
74 return rc;
75 }
76 if (tif.out_rc) {
77 printf("Specific errorr: ");
78 return tif.out_rc;
79 }
80
81 return rc;
82 }
83