mirror of
https://github.com/linux-usb-gadgets/libusbgx.git
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45c14ef4d5
Signed-off-by: Sid Spry R030t1@gmail.com Signed-off-by: Gwenhael Goavec-Merou gwenhael.goavec-merou@trabucayre.com [Copy sign-offs from pull requst to commit msg] Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
79 lines
2 KiB
C
79 lines
2 KiB
C
/*
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* Copyright (C) 2014 Samsung Electronics
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*
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* Krzysztof Opasiak <k.opasiak@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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/**
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* @file gadget-import.c
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* @example gadget-import.c
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* This is an example of how to import a gadget from file.
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* Common reason of doing this is to create gadget base on schema
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* from other devices or resurect gadget after reboot.
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*/
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#include <errno.h>
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#include <string.h>
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#include <stdio.h>
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#include <sys/sysmacros.h>
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#include <usbg/usbg.h>
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int main(int argc, char **argv)
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{
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usbg_state *s;
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int ret = -EINVAL;
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int usbg_ret;
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FILE *input;
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if (argc != 3) {
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fprintf(stderr, "Usage: gadget-import gadget_name file_name\n");
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return ret;
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}
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/* Prepare input file */
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input = fopen(argv[2], "r");
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if (!input) {
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fprintf(stderr, "Error on fopen. Error: %s\n", strerror(errno));
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goto out1;
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}
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/* Do gadget exporting */
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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 USB gadget 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 out2;
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}
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usbg_ret = usbg_import_gadget(s, input, argv[1], NULL);
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if (usbg_ret != USBG_SUCCESS) {
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fprintf(stderr, "Error on import 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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if (usbg_ret == USBG_ERROR_INVALID_FORMAT)
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fprintf(stderr, "Line: %d. Error: %s\n",
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usbg_get_gadget_import_error_line(s),
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usbg_get_gadget_import_error_text(s));
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goto out3;
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}
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ret = 0;
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out3:
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usbg_cleanup(s);
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out2:
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fclose(input);
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out1:
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return ret;
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}
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