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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
/*
* Copyright (C) 2013 Linaro Limited
*
* Matt Porter <mporter@linaro.org>
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*/
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <netinet/ether.h>
#include <usbg/usbg.h>
/**
* @file show-gadgets.c
* @example show-gadgets.c
* This example shows how to display all configured USB gadgets
* in the system
*/
void show_gadget(usbg_gadget *g)
{
const char *name, *udc;
usbg_udc *u;
int usbg_ret;
usbg_gadget_attrs g_attrs;
usbg_gadget_strs g_strs;
name = usbg_get_gadget_name(g);
if (!name) {
fprintf(stderr, "Unable to get gadget name\n");
return;
}
usbg_ret = usbg_get_gadget_attrs(g, &g_attrs);
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
usbg_strerror(usbg_ret));
return;
}
fprintf(stdout, "ID %04x:%04x '%s'\n",
g_attrs.idVendor, g_attrs.idProduct, name);
u = usbg_get_gadget_udc(g);
if (u)
/* gadget is enabled */
udc = usbg_get_udc_name(u);
else
/* gadget is disabled */
udc = "\0";
fprintf(stdout, " UDC\t\t\t%s\n", udc);
fprintf(stdout, " bDeviceClass\t\t0x%02x\n", g_attrs.bDeviceClass);
fprintf(stdout, " bDeviceSubClass\t0x%02x\n", g_attrs.bDeviceSubClass);
fprintf(stdout, " bDeviceProtocol\t0x%02x\n", g_attrs.bDeviceProtocol);
fprintf(stdout, " bMaxPacketSize0\t0x%02x\n", g_attrs.bMaxPacketSize0);
fprintf(stdout, " bcdDevice\t\t0x%04x\n", g_attrs.bcdDevice);
fprintf(stdout, " bcdUSB\t\t0x%04x\n", g_attrs.bcdUSB);
fprintf(stdout, " idVendor\t\t0x%04x\n", g_attrs.idVendor);
fprintf(stdout, " idProduct\t\t0x%04x\n", g_attrs.idProduct);
usbg_ret = usbg_get_gadget_strs(g, LANG_US_ENG, &g_strs);
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
usbg_strerror(usbg_ret));
return;
}
fprintf(stdout, " Serial Number\t\t%s\n", g_strs.str_ser);
fprintf(stdout, " Manufacturer\t\t%s\n", g_strs.str_mnf);
fprintf(stdout, " Product\t\t%s\n", g_strs.str_prd);
}
void show_function(usbg_function *f)
{
const char *instance;
usbg_function_type type;
int usbg_ret;
usbg_function_attrs f_attrs;
instance = usbg_get_function_instance(f);
if (!instance) {
fprintf(stderr, "Unable to get function instance name\n");
return;
}
type = usbg_get_function_type(f);
usbg_ret = usbg_get_function_attrs(f, &f_attrs);
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
usbg_strerror(usbg_ret));
return;
}
fprintf(stdout, " Function, type: %s instance: %s\n",
usbg_get_function_type_str(type), instance);
switch (f_attrs.header.attrs_type) {
case USBG_F_ATTRS_SERIAL:
fprintf(stdout, " port_num\t\t%d\n",
f_attrs.attrs.serial.port_num);
break;
case USBG_F_ATTRS_NET:
{
usbg_f_net_attrs *f_net_attrs = &f_attrs.attrs.net;
fprintf(stdout, " dev_addr\t\t%s\n",
ether_ntoa(&f_net_attrs->dev_addr));
fprintf(stdout, " host_addr\t\t%s\n",
ether_ntoa(&f_net_attrs->host_addr));
fprintf(stdout, " ifname\t\t%s\n", f_net_attrs->ifname);
fprintf(stdout, " qmult\t\t%d\n", f_net_attrs->qmult);
break;
}
case USBG_F_ATTRS_PHONET:
fprintf(stdout, " ifname\t\t%s\n", f_attrs.attrs.phonet.ifname);
break;
case USBG_F_ATTRS_FFS:
fprintf(stdout, " dev_name\t\t%s\n", f_attrs.attrs.ffs.dev_name);
break;
default:
fprintf(stdout, " UNKNOWN\n");
}
usbg_cleanup_function_attrs(&f_attrs);
}
void show_config(usbg_config *c)
{
usbg_binding *b;
usbg_function *f;
const char *label, *instance, *bname;
usbg_function_type type;
usbg_config_attrs c_attrs;
usbg_config_strs c_strs;
int usbg_ret, id;
label = usbg_get_config_label(c);
if (!label) {
fprintf(stderr, "Unable to get config label\n");
return;
}
id = usbg_get_config_id(c);
fprintf(stdout, " Configuration: '%s' ID: %d\n", label, id);
usbg_ret = usbg_get_config_attrs(c, &c_attrs);
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
usbg_strerror(usbg_ret));
return;
}
fprintf(stdout, " MaxPower\t\t%d\n", c_attrs.bMaxPower);
fprintf(stdout, " bmAttributes\t0x%02x\n", c_attrs.bmAttributes);
usbg_ret = usbg_get_config_strs(c, LANG_US_ENG, &c_strs);
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
usbg_strerror(usbg_ret));
return;
}
fprintf(stdout, " configuration\t%s\n", c_strs.configuration);
usbg_for_each_binding(b, c) {
bname = usbg_get_binding_name(b);
f = usbg_get_binding_target(b);
instance = usbg_get_function_instance(f);
type = usbg_get_function_type(f);
if (!bname || !instance) {
fprintf(stderr, "Unable to get binding details\n");
return;
}
fprintf(stdout, " %s -> %s %s\n", bname,
usbg_get_function_type_str(type), instance);
}
}
int main(void)
{
usbg_state *s;
usbg_gadget *g;
usbg_function *f;
usbg_config *c;
int usbg_ret;
usbg_ret = usbg_init("/sys/kernel/config", &s);
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error on USB gadget init\n");
fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
usbg_strerror(usbg_ret));
return -EINVAL;
}
usbg_for_each_gadget(g, s) {
show_gadget(g);
usbg_for_each_function(f, g)
show_function(f);
usbg_for_each_config(c, g)
show_config(c);
}
usbg_cleanup(s);
return 0;
}
|
