2 * This file is part of the libsigrok project.
4 * Copyright (C) 2015 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
21 #ifndef LIBSIGROK_HARDWARE_KERN_SCALE_PROTOCOL_H
22 #define LIBSIGROK_HARDWARE_KERN_SCALE_PROTOCOL_H
24 #define LOG_PREFIX "kern-scale"
27 /** libsigrok driver info struct. */
28 struct sr_dev_driver di;
29 /** Manufacturer/brand. */
33 /** serialconn string. */
37 /** Packet size in bytes. */
39 /** Packet validation function. */
40 gboolean (*packet_valid)(const uint8_t *);
41 /** Packet parsing function. */
42 int (*packet_parse)(const uint8_t *, float *,
43 struct sr_datafeed_analog_old *, void *);
44 /** Size of chipset info struct. */
48 #define SCALE_BUFSIZE 256
50 /** Private, per-device-instance driver context. */
52 /** The current sampling limit (in number of samples). */
53 uint64_t limit_samples;
55 /** The time limit (in milliseconds). */
58 /** Opaque pointer passed in by the frontend. */
61 /** The current number of already received samples. */
64 /** The starting time of current sampling run. */
67 uint8_t buf[SCALE_BUFSIZE];
72 SR_PRIV int kern_scale_receive_data(int fd, int revents, void *cb_data);