1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*
* get_class_dev.c
*
* Utility to find the class a given device is on
*
* Copyright (C) IBM Corp. 2003
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include "libsysfs.h"
static void print_usage(void)
{
fprintf(stdout, "Usage: get_class_dev [class name] [class_device]\n");
}
int main(int argc, char *argv[])
{
struct sysfs_class_device *cdev = NULL;
struct sysfs_attribute *attr = NULL;
struct dlist *attrlist = NULL;
struct sysfs_device *device = NULL;
struct sysfs_driver *driver = NULL;
if (argc != 3) {
print_usage();
return 1;
}
cdev = sysfs_open_class_device(argv[1], argv[2]);
if (cdev == NULL) {
fprintf(stdout, "Device \"%s\" not found\n", argv[2]);
return 1;
}
fprintf(stdout, "Class device \"%s\"\n", cdev->name);
attrlist = sysfs_get_classdev_attributes(cdev);
if (attrlist != NULL) {
dlist_for_each_data(attrlist, attr, struct sysfs_attribute)
fprintf(stdout, "\t%-20s : %s",
attr->name, attr->value);
}
fprintf(stdout, "\n");
device = sysfs_get_classdev_device(cdev);
if (device)
fprintf(stdout, "\tDevice : \"%s\"\n", cdev->sysdevice->bus_id);
driver = sysfs_get_classdev_driver(cdev);
if (driver)
fprintf(stdout, "\tDriver : \"%s\"\n", cdev->driver->name);
sysfs_close_class_device(cdev);
return 0;
}
|
