mirror of
https://github.com/linux-usb-gadgets/libusbgx.git
synced 2025-07-17 12:15:05 +03:00
98bd3bb016
bMaxPacketSize0 is maximal size of packet which can be used for communication with ep0. As most people use digital format for size, lets use digital format for both initialization of this member in gadget atributes and for printing it in show-gadgets. Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
119 lines
3.1 KiB
C
119 lines
3.1 KiB
C
/*
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* Copyright (C) 2014 Samsung Electronics
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*
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* Pawel Szewczyk <p.szewczyk@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <linux/usb/ch9.h>
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#include <usbg/usbg.h>
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#define VENDOR 0x1d6b
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#define PRODUCT 0x0104
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int main() {
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usbg_state *s;
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usbg_gadget *g;
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usbg_config *c;
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usbg_function *f_midi;
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int ret = -EINVAL;
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int usbg_ret;
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usbg_gadget_attrs g_attrs = {
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.bcdUSB = 0x0200,
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.bDeviceClass = USB_CLASS_PER_INTERFACE,
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.bDeviceSubClass = 0x00,
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.bDeviceProtocol = 0x00,
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.bMaxPacketSize0 = 64, /* Max allowed ep0 packet size */
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.idVendor = VENDOR,
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.idProduct = PRODUCT,
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.bcdDevice = 0x0001, /* Verson of device */
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};
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usbg_gadget_strs g_strs = {
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.str_ser = "0123456789", /* Serial number */
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.str_mnf = "Foo Inc.", /* Manufacturer */
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.str_prd = "Bar Gadget" /* Product string */
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};
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usbg_config_strs c_strs = {
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.configuration = "1xMIDI"
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};
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usbg_function_attrs f_attrs = {
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.header.attrs_type = USBG_F_ATTRS_MIDI,
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.attrs.midi = {
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.index = 0,
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.id = "usb0",
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.buflen = 128,
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.qlen = 16,
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.in_ports = 2,
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.out_ports = 3,
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},
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};
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usbg_ret = usbg_init("/sys/kernel/config", &s);
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if (usbg_ret != USBG_SUCCESS) {
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fprintf(stderr, "Error on usbg init\n");
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fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
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usbg_strerror(usbg_ret));
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goto out1;
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}
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usbg_ret = usbg_create_gadget(s, "g1", &g_attrs, &g_strs, &g);
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if (usbg_ret != USBG_SUCCESS) {
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fprintf(stderr, "Error creating gadget\n");
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fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
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usbg_strerror(usbg_ret));
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goto out2;
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}
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usbg_ret = usbg_create_function(g, F_MIDI, "usb0", &f_attrs, &f_midi);
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if (usbg_ret != USBG_SUCCESS) {
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fprintf(stderr, "Error creating function\n");
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fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
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usbg_strerror(usbg_ret));
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goto out2;
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}
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usbg_ret = usbg_create_config(g, 1, "The only one", NULL, &c_strs, &c);
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if (usbg_ret != USBG_SUCCESS) {
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fprintf(stderr, "Error creating config\n");
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fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
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usbg_strerror(usbg_ret));
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goto out2;
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}
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usbg_ret = usbg_add_config_function(c, "some_name", f_midi);
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if (usbg_ret != USBG_SUCCESS) {
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fprintf(stderr, "Error adding function\n");
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fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
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usbg_strerror(usbg_ret));
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goto out2;
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}
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usbg_ret = usbg_enable_gadget(g, DEFAULT_UDC);
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if (usbg_ret != USBG_SUCCESS) {
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fprintf(stderr, "Error enabling gadget\n");
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fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
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usbg_strerror(usbg_ret));
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goto out2;
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}
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ret = 0;
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out2:
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usbg_cleanup(s);
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out1:
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return ret;
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}
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