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         if (ret != SR_OK)
 111                 goto scan_cleanup;
 112
 113         /*
 114          * If we dropped more than two packets worth of data, something is
 115          * wrong. We shouldn't quit however, since the dropped bytes might be
 116          * just zeroes at the beginning of the stream. Those can occur as a
 117          * combination of the nonstandard cable that ships with some devices
 118          * and the serial port or USB to serial adapter.
 119          */
 120         dropped = len - dmm->packet_size;
 121         if (dropped > 2 * dmm->packet_size)
 122                 sr_warn("Had to drop too much data.");
 123
 124         sr_info("Found device on port %s.", conn);
 125
 126         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 127         sdi->status = SR_ST_INACTIVE;
 128         sdi->vendor = g_strdup(dmm->vendor);
 129         sdi->model = g_strdup(dmm->device);
 130         devc = g_malloc0(sizeof(struct dev_context));
 131         sr_sw_limits_init(&devc->limits);
 132         sdi->inst_type = SR_INST_SERIAL;
 133         sdi->conn = serial;
 134         sdi->priv = devc;
 135         dmm->channel_count = 1;
 136         if (dmm->packet_parse == sr_eev121gw_3displays_parse) {
 137                 dmm->channel_count = EEV121GW_DISPLAY_COUNT;
 138                 dmm->channel_formats = eev121gw_channel_formats;
 139         }
 140         if (dmm->packet_parse == sr_metex14_4packets_parse)
 141                 dmm->channel_count = 4;
 142         if (dmm->packet_parse == sr_ms2115b_parse) {
 143                 dmm->channel_count = MS2115B_DISPLAY_COUNT;
 144                 dmm->channel_formats = ms2115b_channel_formats;
 145         }
 146         for (ch_idx = 0; ch_idx < dmm->channel_count; ch_idx++) {
 147                 size_t ch_num;
 148                 const char *fmt;
 149                 fmt = "P%zu";
 150                 if (dmm->channel_formats && dmm->channel_formats[ch_idx])
 151                         fmt = dmm->channel_formats[ch_idx];
 152                 ch_num = ch_idx + 1;
 153                 snprintf(ch_name, sizeof(ch_name), fmt, ch_num);
 154                 sr_channel_new(sdi, ch_idx, SR_CHANNEL_ANALOG, TRUE, ch_name);
 155         }
 156         devices = g_slist_append(devices, sdi);
 157
 158 scan_cleanup:
 159         serial_close(serial);
 160
 161         return std_scan_complete(di, devices);
 162 }
 163
 164 static int config_set(uint32_t key, GVariant *data,
 165         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 166 {
 167         struct dev_context *devc;
 168
 169         (void)cg;
 170
 171         devc = sdi->priv;
 172
 173         return sr_sw_limits_config_set(&devc->limits, key, data);
 174 }
 175
 176 static int config_list(uint32_t key, GVariant **data,
 177         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 178 {
 179         return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
 180 }
 181
 182 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 183 {
 184         struct dev_context *devc;
 185         struct sr_serial_dev_inst *serial;
 186
 187         devc = sdi->priv;
 188
 189         sr_sw_limits_acquisition_start(&devc->limits);
 190         std_session_send_df_header(sdi);
 191
 192         serial = sdi->conn;
 193         serial_source_add(sdi->session, serial, G_IO_IN, 50,
 194                       receive_data, (void *)sdi);
 195
 196         return SR_OK;
 197 }
 198
 199 #define DMM(ID, CHIPSET, VENDOR, MODEL, CONN, PACKETSIZE, TIMEOUT, \
 200                         DELAY, REQUEST, VALID, PARSE, DETAILS) \
 201         &((struct dmm_info) { \
 202                 { \
 203                         .name = ID, \
 204                         .longname = VENDOR " " MODEL, \
 205                         .api_version = 1, \
 206                         .init = std_init, \
 207                         .cleanup = std_cleanup, \
 208                         .scan = scan, \
 209                         .dev_list = std_dev_list, \
 210                         .dev_clear = std_dev_clear, \
 211                         .config_get = NULL, \
 212                         .config_set = config_set, \
 213                         .config_list = config_list, \
 214                         .dev_open = std_serial_dev_open, \
 215                         .dev_close = std_serial_dev_close, \
 216                         .dev_acquisition_start = dev_acquisition_start, \
 217                         .dev_acquisition_stop = std_serial_dev_acquisition_stop, \
 218                         .context = NULL, \
 219                 }, \
 220                 VENDOR, MODEL, CONN, PACKETSIZE, TIMEOUT, DELAY, \
 221                 REQUEST, 1, NULL, VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
 222         }).di
 223
 224 SR_REGISTER_DEV_DRIVER_LIST(serial_dmm_drivers,
 225         /*
 226          * The items are sorted by chipset first and then model name.
 227          *
 228          * This reflects the developer's perspective and is preferrable
 229          * during maintenance, as a vendor/product based sort order does
 230          * not work well for rebranded models, and from a support point
 231          * of view it's more important to identify similarities between
 232          * models and compatible devices.
 233          *
 234          * Fold marks {{{ }}} with matching braces were added, to further
 235          * speed up navigation in the long list.
 236          */
 237         /* asycii based meters {{{ */
 238         DMM(
 239                 "metrix-mx56c", asycii, "Metrix", "MX56C",
 240                 "2400/8n1", ASYCII_PACKET_SIZE, 0, 0, NULL,
 241                 sr_asycii_packet_valid, sr_asycii_parse, NULL
 242         ),
 243         /* }}} */
 244         /* bm25x based meters {{{ */
 245         DMM(
 246                 "brymen-bm25x", bm25x,
 247                 "Brymen", "BM25x", "9600/8n1/rts=1/dtr=1",
 248                 BRYMEN_BM25X_PACKET_SIZE, 0, 0, NULL,
 249                 sr_brymen_bm25x_packet_valid, sr_brymen_bm25x_parse,
 250                 NULL
 251         ),
 252         /* }}} */
 253         /* dtm0660 based meters {{{ */
 254         DMM(
 255                 "peaktech-3415", dtm0660,
 256                 "PeakTech", "3415", "2400/8n1/rts=0/dtr=1",
 257                 DTM0660_PACKET_SIZE, 0, 0, NULL,
 258                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 259         ),
 260         DMM(
 261                 "velleman-dvm4100", dtm0660,
 262                 "Velleman", "DVM4100", "2400/8n1/rts=0/dtr=1",
 263                 DTM0660_PACKET_SIZE, 0, 0, NULL,
 264                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 265         ),
 266         /* }}} */
 267         /* eev121gw based meters {{{ */
 268         DMM(
 269                 "eevblog-121gw", eev121gw, "EEVblog", "121GW",
 270                 "115200/8n1", EEV121GW_PACKET_SIZE, 0, 0, NULL,
 271                 sr_eev121gw_packet_valid, sr_eev121gw_3displays_parse, NULL
 272         ),
 273         /* }}} */
 274         /* es519xx based meters {{{ */
 275         DMM(
 276                 "iso-tech-idm103n", es519xx,
 277                 "ISO-TECH", "IDM103N", "2400/7o1/rts=0/dtr=1",
 278                 ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 279                 sr_es519xx_2400_11b_packet_valid, sr_es519xx_2400_11b_parse,
 280                 NULL
 281         ),
 282         /*
 283          * Note: ES51922 and ES51986 baudrate is actually 19230. This is
 284          * "out" by .15%, and so is well within the typical 1% margin
 285          * that is considered acceptable in UART communication, and thus
 286          * should not cause an issue.
 287          *
 288          * However, using 19230 as baudrate here will not work, as most DMM
 289          * cables do not support that baudrate!
 290          */
 291         DMM(
 292                 "tenma-72-7750-ser", es519xx,
 293                 "Tenma", "72-7750 (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 294                 ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 295                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 296                 NULL
 297         ),
 298         DMM(
 299                 "uni-t-ut60g-ser", es519xx,
 300                 "UNI-T", "UT60G (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 301                 ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 302                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 303                 NULL
 304         ),
 305         DMM(
 306                 "uni-t-ut61e-ser", es519xx,
 307                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 308                 ES519XX_14B_PACKET_SIZE, 0, 0, NULL,
 309                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 310                 NULL
 311         ),
 312         /* }}} */
 313         /* fs9721 based meters {{{ */
 314         DMM(
 315                 "digitek-dt4000zc", fs9721,
 316                 "Digitek", "DT4000ZC", "2400/8n1/dtr=1",
 317                 FS9721_PACKET_SIZE, 0, 0, NULL,
 318                 sr_fs9721_packet_valid, sr_fs9721_parse,
 319                 sr_fs9721_10_temp_c
 320         ),
 321         DMM(
 322                 "mastech-ms8250b", fs9721,
 323                 "MASTECH", "MS8250B", "2400/8n1/rts=0/dtr=1",
 324                 FS9721_PACKET_SIZE, 0, 0, NULL,
 325                 sr_fs9721_packet_valid, sr_fs9721_parse,
 326                 NULL
 327         ),
 328         DMM(
 329                 "pce-pce-dm32", fs9721,
 330                 "PCE", "PCE-DM32", "2400/8n1",
 331                 FS9721_PACKET_SIZE, 0, 0, NULL,
 332                 sr_fs9721_packet_valid, sr_fs9721_parse,
 333                 sr_fs9721_01_10_temp_f_c
 334         ),
 335         DMM(
 336                 "peaktech-3330", fs9721,
 337                 "PeakTech", "3330", "2400/8n1/dtr=1",
 338                 FS9721_PACKET_SIZE, 0, 0, NULL,
 339                 sr_fs9721_packet_valid, sr_fs9721_parse,
 340                 sr_fs9721_01_10_temp_f_c
 341         ),
 342         DMM(
 343                 "tecpel-dmm-8061-ser", fs9721,
 344                 "Tecpel", "DMM-8061 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 345                 FS9721_PACKET_SIZE, 0, 0, NULL,
 346                 sr_fs9721_packet_valid, sr_fs9721_parse,
 347                 sr_fs9721_00_temp_c
 348         ),
 349         DMM(
 350                 "tekpower-tp4000ZC", fs9721,
 351                 "TekPower", "TP4000ZC", "2400/8n1/dtr=1",
 352                 FS9721_PACKET_SIZE, 0, 0, NULL,
 353                 sr_fs9721_packet_valid, sr_fs9721_parse,
 354                 sr_fs9721_10_temp_c
 355         ),
 356         DMM(
 357                 "tenma-72-7745-ser", fs9721,
 358                 "Tenma", "72-7745 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 359                 FS9721_PACKET_SIZE, 0, 0, NULL,
 360                 sr_fs9721_packet_valid, sr_fs9721_parse,
 361                 sr_fs9721_00_temp_c
 362         ),
 363         DMM(
 364                 "uni-t-ut60a-ser", fs9721,
 365                 "UNI-T", "UT60A (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 366                 FS9721_PACKET_SIZE, 0, 0, NULL,
 367                 sr_fs9721_packet_valid, sr_fs9721_parse,
 368                 NULL
 369         ),
 370         DMM(
 371                 "uni-t-ut60e-ser", fs9721,
 372                 "UNI-T", "UT60E (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 373                 FS9721_PACKET_SIZE, 0, 0, NULL,
 374                 sr_fs9721_packet_valid, sr_fs9721_parse,
 375                 sr_fs9721_00_temp_c
 376         ),
 377         DMM(
 378                 "va-va18b", fs9721,
 379                 "V&A", "VA18B", "2400/8n1",
 380                 FS9721_PACKET_SIZE, 0, 0, NULL,
 381                 sr_fs9721_packet_valid, sr_fs9721_parse,
 382                 sr_fs9721_01_temp_c
 383         ),
 384         DMM(
 385                 "va-va40b", fs9721,
 386                 "V&A", "VA40B", "2400/8n1",
 387                 FS9721_PACKET_SIZE, 0, 0, NULL,
 388                 sr_fs9721_packet_valid, sr_fs9721_parse,
 389                 sr_fs9721_max_c_min
 390         ),
 391         DMM(
 392                 "voltcraft-vc820-ser", fs9721,
 393                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 394                 FS9721_PACKET_SIZE, 0, 0, NULL,
 395                 sr_fs9721_packet_valid, sr_fs9721_parse,
 396                 NULL
 397         ),
 398         DMM(
 399                 "voltcraft-vc840-ser", fs9721,
 400                 "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 401                 FS9721_PACKET_SIZE, 0, 0, NULL,
 402                 sr_fs9721_packet_valid, sr_fs9721_parse,
 403                 sr_fs9721_00_temp_c
 404         ),
 405         /* }}} */
 406         /* fs9922 based meters {{{ */
 407         DMM(
 408                 "sparkfun-70c", fs9922,
 409                 "SparkFun", "70C", "2400/8n1/rts=0/dtr=1",
 410                 FS9922_PACKET_SIZE, 0, 0, NULL,
 411                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 412         ),
 413         DMM(
 414                 "uni-t-ut61b-ser", fs9922,
 415                 "UNI-T", "UT61B (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 416                 FS9922_PACKET_SIZE, 0, 0, NULL,
 417                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 418         ),
 419         DMM(
 420                 "uni-t-ut61c-ser", fs9922,
 421                 "UNI-T", "UT61C (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 422                 FS9922_PACKET_SIZE, 0, 0, NULL,
 423                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 424         ),
 425         DMM(
 426                 "uni-t-ut61d-ser", fs9922,
 427                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 428                 FS9922_PACKET_SIZE, 0, 0, NULL,
 429                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 430         ),
 431         DMM(
 432                 "victor-dmm-ser", fs9922,
 433                 "Victor", "Victor DMMs (Mini-USB cable)", "2400/8n1",
 434                 FS9922_PACKET_SIZE, 0, 0, NULL,
 435                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 436         ),
 437         DMM(
 438                 /*
 439                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 440                  * the FS9922 protocol. Instead, it only sets the user-defined
 441                  * bit "z1" to indicate "diode mode" and "voltage".
 442                  */
 443                 "voltcraft-vc830-ser", fs9922,
 444                 "Voltcraft", "VC-830 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 445                 FS9922_PACKET_SIZE, 0, 0, NULL,
 446                 sr_fs9922_packet_valid, sr_fs9922_parse,
 447                 &sr_fs9922_z1_diode
 448         ),
 449         /* }}} */
 450         /* m2110 based meters {{{ */
 451         DMM(
 452                 "bbcgm-2010", m2110,
 453                 "BBC Goertz Metrawatt", "M2110", "1200/7n2",
 454                 BBCGM_M2110_PACKET_SIZE, 0, 0, NULL,
 455                 sr_m2110_packet_valid, sr_m2110_parse,
 456                 NULL
 457         ),
 458         /* }}} */
 459         /* ms2115b based meters {{{ */
 460         DMM(
 461                 "mastech-ms2115b", ms2115b,
 462                 "MASTECH", "MS2115B", "1200/8n1",
 463                 MS2115B_PACKET_SIZE, 0, 0, NULL,
 464                 sr_ms2115b_packet_valid, sr_ms2115b_parse,
 465                 NULL
 466         ),
 467         /* }}} */
 468         /* ms8250d based meters {{{ */
 469         DMM(
 470                 "mastech-ms8250d", ms8250d,
 471                 "MASTECH", "MS8250D", "2400/8n1/rts=0/dtr=1",
 472                 MS8250D_PACKET_SIZE, 0, 0, NULL,
 473                 sr_ms8250d_packet_valid, sr_ms8250d_parse,
 474                 NULL
 475         ),
 476         /* }}} */
 477         /* metex14 based meters {{{ */
 478         DMM(
 479                 "mastech-mas345", metex14,
 480                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1",
 481                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 482                 sr_metex14_packet_valid, sr_metex14_parse,
 483                 NULL
 484         ),
 485         DMM(
 486                 "metex-m3640d", metex14,
 487                 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1",
 488                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 489                 sr_metex14_packet_valid, sr_metex14_parse,
 490                 NULL
 491         ),
 492         DMM(
 493                 "metex-m3860m", metex14,
 494                 "Metex", "M-3860M", "9600/7n2/rts=0/dtr=1",
 495                 4 * METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 496                 sr_metex14_4packets_valid, sr_metex14_4packets_parse,
 497                 NULL
 498         ),
 499         DMM(
 500                 "metex-m4650cr", metex14,
 501                 "Metex", "M-4650CR", "1200/7n2/rts=0/dtr=1",
 502                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 503                 sr_metex14_packet_valid, sr_metex14_parse,
 504                 NULL
 505         ),
 506         DMM(
 507                 "metex-me31", metex14,
 508                 "Metex", "ME-31", "600/7n2/rts=0/dtr=1",
 509                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 510                 sr_metex14_packet_valid, sr_metex14_parse,
 511                 NULL
 512         ),
 513         DMM(
 514                 "peaktech-3410", metex14,
 515                 "PeakTech", "3410", "600/7n2/rts=0/dtr=1",
 516                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 517                 sr_metex14_packet_valid, sr_metex14_parse,
 518                 NULL
 519         ),
 520         DMM(
 521                 "peaktech-4370", metex14,
 522                 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1",
 523                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 524                 sr_metex14_packet_valid, sr_metex14_parse,
 525                 NULL
 526         ),
 527         DMM(
 528                 "peaktech-4390a", metex14,
 529                 "PeakTech", "4390A", "9600/7n2/rts=0/dtr=1",
 530                 4 * METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 531                 sr_metex14_4packets_valid, sr_metex14_4packets_parse,
 532                 NULL
 533         ),
 534         DMM(
 535                 "radioshack-22-168", metex14,
 536                 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1",
 537                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 538                 sr_metex14_packet_valid, sr_metex14_parse,
 539                 NULL
 540         ),
 541         DMM(
 542                 "radioshack-22-805", metex14,
 543                 "RadioShack", "22-805", "600/7n2/rts=0/dtr=1",
 544                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 545                 sr_metex14_packet_valid, sr_metex14_parse,
 546                 NULL
 547         ),
 548         DMM(
 549                 "voltcraft-m3650cr", metex14,
 550                 "Voltcraft", "M-3650CR", "1200/7n2/rts=0/dtr=1",
 551                 METEX14_PACKET_SIZE, 150, 20, sr_metex14_packet_request,
 552                 sr_metex14_packet_valid, sr_metex14_parse,
 553                 NULL
 554         ),
 555         DMM(
 556                 "voltcraft-m3650d", metex14,
 557                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1",
 558                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 559                 sr_metex14_packet_valid, sr_metex14_parse,
 560                 NULL
 561         ),
 562         DMM(
 563                 "voltcraft-m4650cr", metex14,
 564                 "Voltcraft", "M-4650CR", "1200/7n2/rts=0/dtr=1",
 565                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 566                 sr_metex14_packet_valid, sr_metex14_parse,
 567                 NULL
 568         ),
 569         DMM(
 570                 "voltcraft-me42", metex14,
 571                 "Voltcraft", "ME-42", "600/7n2/rts=0/dtr=1",
 572                 METEX14_PACKET_SIZE, 250, 60, sr_metex14_packet_request,
 573                 sr_metex14_packet_valid, sr_metex14_parse,
 574                 NULL
 575         ),
 576         /* }}} */
 577         /* rs9lcd based meters {{{ */
 578         DMM(
 579                 "radioshack-22-812", rs9lcd,
 580                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1",
 581                 RS9LCD_PACKET_SIZE, 0, 0, NULL,
 582                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 583                 NULL
 584         ),
 585         /* }}} */
 586         /* ut71x based meters {{{ */
 587         DMM(
 588                 "tenma-72-7730-ser", ut71x,
 589                 "Tenma", "72-7730 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 590                 UT71X_PACKET_SIZE, 0, 0, NULL,
 591                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 592         ),
 593         DMM(
 594                 "tenma-72-7732-ser", ut71x,
 595                 "Tenma", "72-7732 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 596                 UT71X_PACKET_SIZE, 0, 0, NULL,
 597                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 598         ),
 599         DMM(
 600                 "tenma-72-9380a-ser", ut71x,
 601                 "Tenma", "72-9380A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 602                 UT71X_PACKET_SIZE, 0, 0, NULL,
 603                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 604         ),
 605         DMM(
 606                 "uni-t-ut71a-ser", ut71x,
 607                 "UNI-T", "UT71A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 608                 UT71X_PACKET_SIZE, 0, 0, NULL,
 609                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 610         ),
 611         DMM(
 612                 "uni-t-ut71b-ser", ut71x,
 613                 "UNI-T", "UT71B (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 614                 UT71X_PACKET_SIZE, 0, 0, NULL,
 615                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 616         ),
 617         DMM(
 618                 "uni-t-ut71c-ser", ut71x,
 619                 "UNI-T", "UT71C (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 620                 UT71X_PACKET_SIZE, 0, 0, NULL,
 621                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 622         ),
 623         DMM(
 624                 "uni-t-ut71d-ser", ut71x,
 625                 "UNI-T", "UT71D (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 626                 UT71X_PACKET_SIZE, 0, 0, NULL,
 627                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 628         ),
 629         DMM(
 630                 "uni-t-ut71e-ser", ut71x,
 631                 "UNI-T", "UT71E (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 632                 UT71X_PACKET_SIZE, 0, 0, NULL,
 633                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 634         ),
 635         DMM(
 636                 "voltcraft-vc920-ser", ut71x,
 637                 "Voltcraft", "VC-920 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 638                 UT71X_PACKET_SIZE, 0, 0, NULL,
 639                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 640         ),
 641         DMM(
 642                 "voltcraft-vc940-ser", ut71x,
 643                 "Voltcraft", "VC-940 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 644                 UT71X_PACKET_SIZE, 0, 0, NULL,
 645                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 646         ),
 647         DMM(
 648                 "voltcraft-vc960-ser", ut71x,
 649                 "Voltcraft", "VC-960 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 650                 UT71X_PACKET_SIZE, 0, 0, NULL,
 651                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 652         ),
 653         /* }}} */
 654         /* vc870 based meters {{{ */
 655         DMM(
 656                 "voltcraft-vc870-ser", vc870,
 657                 "Voltcraft", "VC-870 (UT-D02 cable)", "9600/8n1/rts=0/dtr=1",
 658                 VC870_PACKET_SIZE, 0, 0, NULL,
 659                 sr_vc870_packet_valid, sr_vc870_parse, NULL
 660         ),
 661         /* }}} */
 662         /* vc96 based meters {{{ */
 663         DMM(
 664                 "voltcraft-vc96", vc96,
 665                 "Voltcraft", "VC-96", "1200/8n2",
 666                 VC96_PACKET_SIZE, 0, 0, NULL,
 667                 sr_vc96_packet_valid, sr_vc96_parse,
 668                 NULL
 669         ),
 670         /* }}} */
 671         /*
 672          * The list is sorted. Add new items in the respective chip's group.
 673          */
 674 );