2 * This file is part of the sigrok project.
4 * Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.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, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #include "libsigrok.h"
23 #include "libsigrok-internal.h"
26 * Standard sr_driver_init() API helper.
28 * This function can be used to simplify most driver's hw_init() API callback.
30 * It creates a new 'struct drv_context' (drvc), assigns sr_ctx to it, and
31 * then 'drvc' is assigned to the 'struct sr_dev_driver' (di) that is passed.
33 * @param sr_ctx The libsigrok context to assign.
34 * @param di The driver instance to use.
35 * @param prefix A driver-specific prefix string used for log messages.
37 * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or
38 * SR_ERR_MALLOC upon memory allocation errors.
40 SR_PRIV int std_hw_init(struct sr_context *sr_ctx, struct sr_dev_driver *di,
43 struct drv_context *drvc;
46 sr_err("%sInvalid driver, cannot initialize.", prefix);
50 if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
51 sr_err("%sDriver context malloc failed.", prefix);
55 drvc->sr_ctx = sr_ctx;