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/*
* 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 <usbg/usbg.h>
/**
* @file gadget-acm-ecm.c
* @example gadget-acm-ecm.c
* This is an example of how to create an ACM+ECM gadget device.
*/
#define VENDOR 0x1d6b
#define PRODUCT 0x0104
int main(void)
{
usbg_state *s;
usbg_gadget *g;
usbg_function *f;
usbg_config *c;
usbg_function *f_acm0, *f_acm1, *f_ecm;
int ret = -EINVAL;
usbg_gadget_attrs g_attrs = {
0x0200, /* bcdUSB */
0x00, /* Defined at interface level */
0x00, /* subclass */
0x00, /* device protocol */
0x0040, /* Max allowed packet size */
VENDOR,
PRODUCT,
0x0001, /* Verson of device */
};
usbg_gadget_strs g_strs = {
"0123456789", /* Serial number */
"Foo Inc.", /* Manufacturer */
"Bar Gadget" /* Product string */
};
usbg_config_strs c_strs = {
"CDC 2xACM+ECM"
};
s = usbg_init("/sys/kernel/config");
if (!s) {
fprintf(stderr, "Error on USB gadget init\n");
goto out1;
}
g = usbg_create_gadget(s, "g1", &g_attrs, &g_strs);
if (!g) {
fprintf(stderr, "Error on create gadget\n");
goto out2;
}
f_acm0 = usbg_create_function(g, F_ACM, "usb0", NULL);
if (!f_acm0) {
fprintf(stderr, "Error creating acm0 function\n");
goto out2;
}
f_acm1 = usbg_create_function(g, F_ACM, "usb1", NULL);
if (!f_acm1) {
fprintf(stderr, "Error creating acm1 function\n");
goto out2;
}
f_ecm = usbg_create_function(g, F_ECM, "usb0", NULL);
if (!f_ecm) {
fprintf(stderr, "Error creating ecm function\n");
goto out2;
}
c = usbg_create_config(g, "c.1", NULL /* use defaults */, &c_strs);
if (!c) {
fprintf(stderr, "Error creating config\n");
goto out2;
}
usbg_add_config_function(c, "acm.GS0", f_acm0);
usbg_add_config_function(c, "acm.GS1", f_acm1);
usbg_add_config_function(c, "ecm.usb0", f_ecm);
usbg_enable_gadget(g, DEFAULT_UDC);
ret = 0;
out2:
usbg_cleanup(s);
out1:
return ret;
}
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