src/hardware/serial-dmm/api.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
   5  * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
   6  * Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
   7  *
   8  * This program is free software: you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation, either version 3 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include <config.h>
  23 #include <sys/types.h>
  24 #include <sys/stat.h>
  25 #include <fcntl.h>
  26 #include <string.h>
  27 #include <glib.h>
  28 #include <libsigrok/libsigrok.h>
  29 #include "libsigrok-internal.h"
  30 #include "protocol.h"
  31
  32 static const uint32_t scanopts[] = {
  33         SR_CONF_CONN,
  34         SR_CONF_SERIALCOMM,
  35 };
  36
  37 static const uint32_t drvopts[] = {
  38         SR_CONF_MULTIMETER,
  39 };
  40
  41 static const uint32_t devopts[] = {
  42         SR_CONF_CONTINUOUS,
  43         SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
  44         SR_CONF_LIMIT_MSEC | SR_CONF_SET,
  45 };
  46
  47 static GSList *scan(struct sr_dev_driver *di, GSList *options)
  48 {
  49         struct dmm_info *dmm;
  50         struct sr_config *src;
  51         GSList *l, *devices;
  52         const char *conn, *serialcomm;
  53         struct sr_dev_inst *sdi;
  54         struct dev_context *devc;
  55         struct sr_serial_dev_inst *serial;
  56         int dropped, ret;
  57         size_t len;
  58         uint8_t buf[128];
  59         size_t ch_idx;
  60         char ch_name[12];
  61
  62         dmm = (struct dmm_info *)di;
  63
  64         conn = serialcomm = NULL;
  65         for (l = options; l; l = l->next) {
  66                 src = l->data;
  67                 switch (src->key) {
  68                 case SR_CONF_CONN:
  69                         conn = g_variant_get_string(src->data, NULL);
  70                         break;
  71                 case SR_CONF_SERIALCOMM:
  72                         serialcomm = g_variant_get_string(src->data, NULL);
  73                         break;
  74                 }
  75         }
  76         if (!conn)
  77                 return NULL;
  78
  79         if (!serialcomm)
  80                 serialcomm = dmm->conn;
  81
  82         serial = sr_serial_dev_inst_new(conn, serialcomm);
  83
  84         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
  85                 return NULL;
  86
  87         sr_info("Probing serial port %s.", conn);
  88
  89         devices = NULL;
  90         serial_flush(serial);
  91
  92         /* Request a packet if the DMM requires this. */
  93         if (dmm->packet_request) {
  94                 if ((ret = dmm->packet_request(serial)) < 0) {
  95                         sr_err("Failed to request packet: %d.", ret);
  96                         return FALSE;
  97                 }
  98         }
  99
 100         /*
 101          * There's no way to get an ID from the multimeter. It just sends data
 102          * periodically (or upon request), so the best we can do is check if
 103          * the packets match the expected format.
 104          */
 105
 106         /* Let's get a bit of data and see if we can find a packet. */
 107         len = sizeof(buf);
 108         ret = serial_stream_detect(serial, buf, &len, dmm->packet_size,
 109                                    dmm->packet_valid, 3000,
 110                                    dmm->baudrate);
 111         if (ret != SR_OK)
 112                 goto scan_cleanup;
 113
 114         /*
 115          * If we dropped more than two packets worth of data, something is
 116          * wrong. We shouldn't quit however, since the dropped bytes might be
 117          * just zeroes at the beginning of the stream. Those can occur as a
 118          * combination of the nonstandard cable that ships with some devices
 119          * and the serial port or USB to serial adapter.
 120          */
 121         dropped = len - dmm->packet_size;
 122         if (dropped > 2 * dmm->packet_size)
 123                 sr_warn("Had to drop too much data.");
 124
 125         sr_info("Found device on port %s.", conn);
 126
 127         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 128         sdi->status = SR_ST_INACTIVE;
 129         sdi->vendor = g_strdup(dmm->vendor);
 130         sdi->model = g_strdup(dmm->device);
 131         devc = g_malloc0(sizeof(struct dev_context));
 132         sr_sw_limits_init(&devc->limits);
 133         sdi->inst_type = SR_INST_SERIAL;
 134         sdi->conn = serial;
 135         sdi->priv = devc;
 136         dmm->channel_count = 1;
 137         if (dmm->packet_parse == sr_metex14_4packets_parse)
 138                 dmm->channel_count = 4;
 139         for (ch_idx = 0; ch_idx < dmm->channel_count; ch_idx++) {
 140                 size_t ch_num;
 141                 ch_num = ch_idx + 1;
 142                 snprintf(ch_name, sizeof(ch_name), "P%zu", ch_num);
 143                 sr_channel_new(sdi, ch_idx, SR_CHANNEL_ANALOG, TRUE, ch_name);
 144         }
 145         devices = g_slist_append(devices, sdi);
 146
 147 scan_cleanup:
 148         serial_close(serial);
 149
 150         return std_scan_complete(di, devices);
 151 }
 152
 153 static int config_set(uint32_t key, GVariant *data,
 154         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 155 {
 156         struct dev_context *devc;
 157
 158         (void)cg;
 159
 160         devc = sdi->priv;
 161
 162         return sr_sw_limits_config_set(&devc->limits, key, data);
 163 }
 164
 165 static int config_list(uint32_t key, GVariant **data,
 166         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 167 {
 168         return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
 169 }
 170
 171 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 172 {
 173         struct dev_context *devc;
 174         struct sr_serial_dev_inst *serial;
 175
 176         devc = sdi->priv;
 177
 178         sr_sw_limits_acquisition_start(&devc->limits);
 179         std_session_send_df_header(sdi);
 180
 181         serial = sdi->conn;
 182         serial_source_add(sdi->session, serial, G_IO_IN, 50,
 183                       receive_data, (void *)sdi);
 184
 185         return SR_OK;
 186 }
 187
 188 #define DMM(ID, CHIPSET, VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, \
 189                         DELAY, REQUEST, VALID, PARSE, DETAILS) \
 190         &((struct dmm_info) { \
 191                 { \
 192                         .name = ID, \
 193                         .longname = VENDOR " " MODEL, \
 194                         .api_version = 1, \
 195                         .init = std_init, \
 196                         .cleanup = std_cleanup, \
 197                         .scan = scan, \
 198                         .dev_list = std_dev_list, \
 199                         .dev_clear = std_dev_clear, \
 200                         .config_get = NULL, \
 201                         .config_set = config_set, \
 202                         .config_list = config_list, \
 203                         .dev_open = std_serial_dev_open, \
 204                         .dev_close = std_serial_dev_close, \
 205                         .dev_acquisition_start = dev_acquisition_start, \
 206                         .dev_acquisition_stop = std_serial_dev_acquisition_stop, \
 207                         .context = NULL, \
 208                 }, \
 209                 VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, DELAY, \
 210                 REQUEST, 1, VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
 211         }).di
 212
 213 SR_REGISTER_DEV_DRIVER_LIST(serial_dmm_drivers,
 214         /*
 215          * The items are sorted by chipset first and then model name.
 216          *
 217          * This reflects the developer's perspective and is preferrable
 218          * during maintenance, as a vendor/product based sort order does
 219          * not work well for rebranded models, and from a support point
 220          * of view it's more important to identify similarities between
 221          * models and compatible devices.
 222          *
 223          * Fold marks {{{ }}} with matching braces were added, to further
 224          * speed up navigation in the long list.
 225          */
 226         /* asycii based meters {{{ */
 227         DMM(
 228                 "metrix-mx56c", asycii, "Metrix", "MX56C",
 229                 "2400/8n1", 2400, ASYCII_PACKET_SIZE, 0, 0, NULL,
 230                 sr_asycii_packet_valid, sr_asycii_parse, NULL
 231         ),
 232         /* }}} */
 233         /* bm25x based meters {{{ */
 234         DMM(
 235                 "brymen-bm25x", bm25x,
 236                 "Brymen", "BM25x", "9600/8n1/rts=1/dtr=1",
 237                 9600, BRYMEN_BM25X_PACKET_SIZE, 0, 0, NULL,
 238                 sr_brymen_bm25x_packet_valid, sr_brymen_bm25x_parse,
 239                 NULL
 240         ),
 241         /* }}} */
 242         /* dtm0660 based meters {{{ */
 243         DMM(
 244                 "peaktech-3415", dtm0660,
 245                 "PeakTech", "3415", "2400/8n1/rts=0/dtr=1",
 246                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 247                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 248         ),
 249         DMM(
 250                 "velleman-dvm4100", dtm0660,
 251                 "Velleman", "DVM4100", "2400/8n1/rts=0/dtr=1",
 252                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 253                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 254         ),
 255         /* }}} */
 256         /* es519xx based meters {{{ */
 257         DMM(
 258                 "iso-tech-idm103n", es519xx,
 259                 "ISO-TECH", "IDM103N", "2400/7o1/rts=0/dtr=1",
 260                 2400, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 261                 sr_es519xx_2400_11b_packet_valid, sr_es519xx_2400_11b_parse,
 262                 NULL
 263         ),
 264         /*
 265          * Note: ES51922 and ES51986 baudrate is actually 19230. This is
 266          * "out" by .15%, and so is well within the typical 1% margin
 267          * that is considered acceptable in UART communication, and thus
 268          * should not cause an issue.
 269          *
 270          * However, using 19230 as baudrate here will not work, as most DMM
 271          * cables do not support that baudrate!
 272          */
 273         DMM(
 274                 "tenma-72-7750-ser", es519xx,
 275                 "Tenma", "72-7750 (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 276                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 277                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 278                 NULL
 279         ),
 280         DMM(
 281                 "uni-t-ut60g-ser", es519xx,
 282                 "UNI-T", "UT60G (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 283                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 284                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 285                 NULL
 286         ),
 287         DMM(
 288                 "uni-t-ut61e-ser", es519xx,
 289                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 290                 19200, ES519XX_14B_PACKET_SIZE, 0, 0, NULL,
 291                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 292                 NULL
 293         ),
 294         /* }}} */
 295         /* fs9721 based meters {{{ */
 296         DMM(
 297                 "digitek-dt4000zc", fs9721,
 298                 "Digitek", "DT4000ZC", "2400/8n1/dtr=1", 2400,
 299                 FS9721_PACKET_SIZE, 0, 0, NULL,
 300                 sr_fs9721_packet_valid, sr_fs9721_parse,
 301                 sr_fs9721_10_temp_c
 302         ),
 303         DMM(
 304                 "mastech-ms8250b", fs9721,
 305                 "MASTECH", "MS8250B", "2400/8n1/rts=0/dtr=1",
 306                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 307                 sr_fs9721_packet_valid, sr_fs9721_parse,
 308                 NULL
 309         ),
 310         DMM(
 311                 "pce-pce-dm32", fs9721,
 312                 "PCE", "PCE-DM32", "2400/8n1", 2400,
 313                 FS9721_PACKET_SIZE, 0, 0, NULL,
 314                 sr_fs9721_packet_valid, sr_fs9721_parse,
 315                 sr_fs9721_01_10_temp_f_c
 316         ),
 317         DMM(
 318                 "peaktech-3330", fs9721,
 319                 "PeakTech", "3330", "2400/8n1/dtr=1", 2400,
 320                 FS9721_PACKET_SIZE, 0, 0, NULL,
 321                 sr_fs9721_packet_valid, sr_fs9721_parse,
 322                 sr_fs9721_01_10_temp_f_c
 323         ),
 324         DMM(
 325                 "tecpel-dmm-8061-ser", fs9721,
 326                 "Tecpel", "DMM-8061 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 327                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 328                 sr_fs9721_packet_valid, sr_fs9721_parse,
 329                 sr_fs9721_00_temp_c
 330         ),
 331         DMM(
 332                 "tekpower-tp4000ZC", fs9721,
 333                 "TekPower", "TP4000ZC", "2400/8n1/dtr=1", 2400,
 334                 FS9721_PACKET_SIZE, 0, 0, NULL,
 335                 sr_fs9721_packet_valid, sr_fs9721_parse,
 336                 sr_fs9721_10_temp_c
 337         ),
 338         DMM(
 339                 "tenma-72-7745-ser", fs9721,
 340                 "Tenma", "72-7745 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 341                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 342                 sr_fs9721_packet_valid, sr_fs9721_parse,
 343                 sr_fs9721_00_temp_c
 344         ),
 345         DMM(
 346                 "uni-t-ut60a-ser", fs9721,
 347                 "UNI-T", "UT60A (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 348                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 349                 sr_fs9721_packet_valid, sr_fs9721_parse,
 350                 NULL
 351         ),
 352         DMM(
 353                 "uni-t-ut60e-ser", fs9721,
 354                 "UNI-T", "UT60E (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 355                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 356                 sr_fs9721_packet_valid, sr_fs9721_parse,
 357                 sr_fs9721_00_temp_c
 358         ),
 359         DMM(
 360                 "va-va18b", fs9721,
 361                 "V&A", "VA18B", "2400/8n1", 2400,
 362                 FS9721_PACKET_SIZE, 0, 0, NULL,
 363                 sr_fs9721_packet_valid, sr_fs9721_parse,
 364                 sr_fs9721_01_temp_c
 365         ),
 366         DMM(
 367                 "va-va40b", fs9721,
 368                 "V&A", "VA40B", "2400/8n1", 2400,
 369                 FS9721_PACKET_SIZE, 0, 0, NULL,
 370                 sr_fs9721_packet_valid, sr_fs9721_parse,
 371                 sr_fs9721_max_c_min
 372         ),
 373         DMM(
 374                 "voltcraft-vc820-ser", fs9721,
 375                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 376                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 377                 sr_fs9721_packet_valid, sr_fs9721_parse,
 378                 NULL
 379         ),
 380         DMM(
 381                 "voltcraft-vc840-ser", fs9721,
 382                 "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 383                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 384                 sr_fs9721_packet_valid, sr_fs9721_parse,
 385                 sr_fs9721_00_temp_c
 386         ),
 387         /* }}} */
 388         /* fs9922 based meters {{{ */
 389         DMM(
 390                 "sparkfun-70c", fs9922,
 391                 "SparkFun", "70C", "2400/8n1/rts=0/dtr=1",
 392                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 393                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 394         ),
 395         DMM(
 396                 "uni-t-ut61b-ser", fs9922,
 397                 "UNI-T", "UT61B (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 398                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 399                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 400         ),
 401         DMM(
 402                 "uni-t-ut61c-ser", fs9922,
 403                 "UNI-T", "UT61C (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 404                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 405                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 406         ),
 407         DMM(
 408                 "uni-t-ut61d-ser", fs9922,
 409                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 410                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 411                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 412         ),
 413         DMM(
 414                 /*
 415                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 416                  * the FS9922 protocol. Instead, it only sets the user-defined
 417                  * bit "z1" to indicate "diode mode" and "voltage".
 418                  */
 419                 "voltcraft-vc830-ser", fs9922,
 420                 "Voltcraft", "VC-830 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 421                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 422                 sr_fs9922_packet_valid, sr_fs9922_parse,
 423                 &sr_fs9922_z1_diode
 424         ),
 425         /* }}} */
 426         /* m2110 based meters {{{ */
 427         DMM(
 428                 "bbcgm-2010", m2110,
 429                 "BBC Goertz Metrawatt", "M2110", "1200/7n2", 1200,
 430                 BBCGM_M2110_PACKET_SIZE, 0, 0, NULL,
 431                 sr_m2110_packet_valid, sr_m2110_parse,
 432                 NULL
 433         ),
 434         /* }}} */
 435         /* ms8250d based meters {{{ */
 436         DMM(
 437                 "mastech-ms8250d", ms8250d,
 438                 "MASTECH", "MS8250D", "2400/8n1/rts=0/dtr=1",
 439                 2400, MS8250D_PACKET_SIZE, 0, 0, NULL,
 440                 sr_ms8250d_packet_valid, sr_ms8250d_parse,
 441                 NULL
 442         ),
 443         /* }}} */
 444         /* metex14 based meters {{{ */
 445         DMM(
 446                 "mastech-mas345", metex14,
 447                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1", 600,
 448                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 449                 sr_metex14_packet_valid, sr_metex14_parse,
 450                 NULL
 451         ),
 452         DMM(
 453                 "metex-m3640d", metex14,
 454                 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1", 1200,
 455                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 456                 sr_metex14_packet_valid, sr_metex14_parse,
 457                 NULL
 458         ),
 459         DMM(
 460                 "metex-m3860m", metex14,
 461                 "Metex", "M-3860M", "9600/7n2/rts=0/dtr=1", 9600,
 462                 4 * METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 463                 sr_metex14_4packets_valid, sr_metex14_4packets_parse,
 464                 NULL
 465         ),
 466         DMM(
 467                 "metex-m4650cr", metex14,
 468                 "Metex", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 469                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 470                 sr_metex14_packet_valid, sr_metex14_parse,
 471                 NULL
 472         ),
 473         DMM(
 474                 "metex-me31", metex14,
 475                 "Metex", "ME-31", "600/7n2/rts=0/dtr=1", 600,
 476                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 477                 sr_metex14_packet_valid, sr_metex14_parse,
 478                 NULL
 479         ),
 480         DMM(
 481                 "peaktech-3410", metex14,
 482                 "PeakTech", "3410", "600/7n2/rts=0/dtr=1", 600,
 483                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 484                 sr_metex14_packet_valid, sr_metex14_parse,
 485                 NULL
 486         ),
 487         DMM(
 488                 "peaktech-4370", metex14,
 489                 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1", 1200,
 490                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 491                 sr_metex14_packet_valid, sr_metex14_parse,
 492                 NULL
 493         ),
 494         DMM(
 495                 "peaktech-4390a", metex14,
 496                 "PeakTech", "4390A", "9600/7n2/rts=0/dtr=1", 9600,
 497                 4 * METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 498                 sr_metex14_4packets_valid, sr_metex14_4packets_parse,
 499                 NULL
 500         ),
 501         DMM(
 502                 "radioshack-22-168", metex14,
 503                 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1", 1200,
 504                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 505                 sr_metex14_packet_valid, sr_metex14_parse,
 506                 NULL
 507         ),
 508         DMM(
 509                 "radioshack-22-805", metex14,
 510                 "RadioShack", "22-805", "600/7n2/rts=0/dtr=1", 600,
 511                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 512                 sr_metex14_packet_valid, sr_metex14_parse,
 513                 NULL
 514         ),
 515         DMM(
 516                 "voltcraft-m3650cr", metex14,
 517                 "Voltcraft", "M-3650CR", "1200/7n2/rts=0/dtr=1", 1200,
 518                 METEX14_PACKET_SIZE, 150, 20, sr_metex14_packet_request,
 519                 sr_metex14_packet_valid, sr_metex14_parse,
 520                 NULL
 521         ),
 522         DMM(
 523                 "voltcraft-m3650d", metex14,
 524                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1", 1200,
 525                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 526                 sr_metex14_packet_valid, sr_metex14_parse,
 527                 NULL
 528         ),
 529         DMM(
 530                 "voltcraft-m4650cr", metex14,
 531                 "Voltcraft", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 532                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 533                 sr_metex14_packet_valid, sr_metex14_parse,
 534                 NULL
 535         ),
 536         DMM(
 537                 "voltcraft-me42", metex14,
 538                 "Voltcraft", "ME-42", "600/7n2/rts=0/dtr=1", 600,
 539                 METEX14_PACKET_SIZE, 250, 60, sr_metex14_packet_request,
 540                 sr_metex14_packet_valid, sr_metex14_parse,
 541                 NULL
 542         ),
 543         /* }}} */
 544         /* rs9lcd based meters {{{ */
 545         DMM(
 546                 "radioshack-22-812", rs9lcd,
 547                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1", 4800,
 548                 RS9LCD_PACKET_SIZE, 0, 0, NULL,
 549                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 550                 NULL
 551         ),
 552         /* }}} */
 553         /* ut71x based meters {{{ */
 554         DMM(
 555                 "tenma-72-7730-ser", ut71x,
 556                 "Tenma", "72-7730 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 557                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 558                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 559         ),
 560         DMM(
 561                 "tenma-72-7732-ser", ut71x,
 562                 "Tenma", "72-7732 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 563                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 564                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 565         ),
 566         DMM(
 567                 "tenma-72-9380a-ser", ut71x,
 568                 "Tenma", "72-9380A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 569                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 570                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 571         ),
 572         DMM(
 573                 "uni-t-ut71a-ser", ut71x,
 574                 "UNI-T", "UT71A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 575                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 576                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 577         ),
 578         DMM(
 579                 "uni-t-ut71b-ser", ut71x,
 580                 "UNI-T", "UT71B (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 581                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 582                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 583         ),
 584         DMM(
 585                 "uni-t-ut71c-ser", ut71x,
 586                 "UNI-T", "UT71C (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 587                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 588                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 589         ),
 590         DMM(
 591                 "uni-t-ut71d-ser", ut71x,
 592                 "UNI-T", "UT71D (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 593                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 594                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 595         ),
 596         DMM(
 597                 "uni-t-ut71e-ser", ut71x,
 598                 "UNI-T", "UT71E (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 599                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 600                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 601         ),
 602         DMM(
 603                 "voltcraft-vc920-ser", ut71x,
 604                 "Voltcraft", "VC-920 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 605                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 606                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 607         ),
 608         DMM(
 609                 "voltcraft-vc940-ser", ut71x,
 610                 "Voltcraft", "VC-940 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 611                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 612                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 613         ),
 614         DMM(
 615                 "voltcraft-vc960-ser", ut71x,
 616                 "Voltcraft", "VC-960 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 617                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 618                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 619         ),
 620         /* }}} */
 621         /* vc870 based meters {{{ */
 622         DMM(
 623                 "voltcraft-vc870-ser", vc870,
 624                 "Voltcraft", "VC-870 (UT-D02 cable)", "9600/8n1/rts=0/dtr=1",
 625                 9600, VC870_PACKET_SIZE, 0, 0, NULL,
 626                 sr_vc870_packet_valid, sr_vc870_parse, NULL
 627         ),
 628         /* }}} */
 629         /* vc96 based meters {{{ */
 630         DMM(
 631                 "voltcraft-vc96", vc96,
 632                 "Voltcraft", "VC-96", "1200/8n2", 1200,
 633                 VC96_PACKET_SIZE, 0, 0, NULL,
 634                 sr_vc96_packet_valid, sr_vc96_parse,
 635                 NULL
 636         ),
 637         /* }}} */
 638         /*
 639          * The list is sorted. Add new items in the respective chip's group.
 640          */
 641 );