2 * This file is part of the libjaylink project.
4 * Copyright (C) 2014-2015 Marc Schink <jaylink-dev@marcschink.de>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #include "libjaylink.h"
24 #include "libjaylink-internal.h"
29 * Core library functions.
33 * Initialize libjaylink.
35 * This function must be called before any other libjaylink function is called.
37 * @param[out] ctx Newly allocated libjaylink context on success, and undefined
40 * @retval JAYLINK_OK Success.
41 * @retval JAYLINK_ERR_ARG Invalid arguments.
42 * @retval JAYLINK_ERR_MALLOC Memory allocation error.
43 * @retval JAYLINK_ERR Other error conditions.
45 JAYLINK_API
int jaylink_init(struct jaylink_context
**ctx
)
48 struct jaylink_context
*context
;
51 return JAYLINK_ERR_ARG
;
53 context
= malloc(sizeof(struct jaylink_context
));
56 return JAYLINK_ERR_MALLOC
;
58 if (libusb_init(&context
->usb_ctx
) < 0) {
65 /* Show error and warning messages by default. */
66 context
->log_level
= JAYLINK_LOG_LEVEL_WARNING
;
68 context
->log_callback
= &log_vprintf
;
69 context
->log_callback_data
= NULL
;
71 ret
= jaylink_log_set_domain(context
, JAYLINK_LOG_DOMAIN_DEFAULT
);
73 if (ret
!= JAYLINK_OK
) {
84 * Shutdown libjaylink.
86 * @param[in,out] ctx libjaylink context.
88 JAYLINK_API
void jaylink_exit(struct jaylink_context
*ctx
)
94 libusb_exit(ctx
->usb_ctx
);