2 * This file is part of the libsigrok project.
4 * Copyright (C) 2014 Matthias Heidbrink <m-sigrok@heidbrink.biz>
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 3 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/>.
22 * <em>Conrad DIGI 35 CPU</em> power supply driver
29 * Send command with parameter.
31 * @param[in] cmd Command
32 * @param[in] param Parameter (0..999, depending on command).
34 * @retval SR_OK Success.
35 * @retval SR_ERR_ARG Invalid argument.
36 * @retval SR_ERR Error.
38 SR_PRIV int send_msg1(const struct sr_dev_inst *sdi, char cmd, int param)
40 struct sr_serial_dev_inst *serial;
43 if (!sdi || !(serial = sdi->conn))
46 snprintf(buf, sizeof(buf), "%c%03d", cmd, param);
49 sr_spew("send_msg1(): %c%c%c%c\\r", buf[0], buf[1], buf[2], buf[3]);
51 if (serial_write_blocking(serial, buf, sizeof(buf), 0) < (int)sizeof(buf)) {
52 sr_err("Write error for cmd=%c", cmd);
57 * Wait 50ms to ensure that the device does not swallow any of the