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
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/*
* get_driver.c
*
* Utility to get details of the given driver
*
* 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 <string.h>
#include "libsysfs.h"
static void print_usage(void)
{
fprintf(stdout, "Usage: get_driver [driver]\n");
}
int main(int argc, char *argv[])
{
char *bus = NULL, path[SYSFS_PATH_MAX];
struct sysfs_driver *driver = NULL;
struct sysfs_device *device = NULL;
struct dlist *devlist = NULL;
if (argc != 2) {
print_usage();
return 1;
}
memset(path, 0, SYSFS_PATH_MAX);
bus = (char *)calloc(1, SYSFS_NAME_LEN);
if ((sysfs_find_driver_bus(argv[1], bus, SYSFS_NAME_LEN)) < 0) {
fprintf(stdout, "Driver %s not found\n", argv[1]);
free(bus);
return 1;
}
fprintf(stdout, "Driver %s is a member of bus %s\n", argv[1], bus);
if ((sysfs_get_mnt_path(path, SYSFS_PATH_MAX)) != 0) {
fprintf(stdout, "Sysfs not mounted?\n");
return 1;
}
strcat(path, "/");
strcat(path, SYSFS_BUS_NAME);
strcat(path, "/");
strcat(path, bus);
strcat(path, "/");
strcat(path, SYSFS_DRIVERS_NAME);
strcat(path, "/");
strcat(path, argv[1]);
driver = sysfs_open_driver_path(path);
if (driver == NULL) {
fprintf(stdout, "Device %s not found\n", argv[1]);
free(bus);
return 1;
}
devlist = sysfs_get_driver_devices(driver);
if (devlist != NULL) {
fprintf(stdout, "%s is used by:\n", argv[1]);
dlist_for_each_data(devlist, device, struct sysfs_device)
fprintf(stdout, "\t\t%s\n", device->bus_id);
} else
fprintf(stdout, "%s is presently not used by any device\n", argv[1]);
sysfs_close_driver(driver);
free(bus);
return 0;
}
|
