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 = dmm->conn;
  65         serialcomm = dmm->serialcomm;
  66         for (l = options; l; l = l->next) {
  67                 src = l->data;
  68                 switch (src->key) {
  69                 case SR_CONF_CONN:
  70                         conn = g_variant_get_string(src->data, NULL);
  71                         break;
  72                 case SR_CONF_SERIALCOMM:
  73                         serialcomm = g_variant_get_string(src->data, NULL);
  74                         break;
  75                 }
  76         }
  77         if (!conn)
  78                 return NULL;
  79
  80         serial = sr_serial_dev_inst_new(conn, serialcomm);
  81
  82         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
  83                 return NULL;
  84
  85         sr_info("Probing serial port %s.", conn);
  86
  87         devices = NULL;
  88         serial_flush(serial);
  89
  90         /* Request a packet if the DMM requires this. */
  91         if (dmm->packet_request) {
  92                 if ((ret = dmm->packet_request(serial)) < 0) {
  93                         sr_err("Failed to request packet: %d.", ret);
  94                         return FALSE;
  95                 }
  96         }
  97
  98         /*
  99          * There's no way to get an ID from the multimeter. It just sends data
 100          * periodically (or upon request), so the best we can do is check if
 101          * the packets match the expected format.
 102          */
 103
 104         /* Let's get a bit of data and see if we can find a packet. */
 105         len = sizeof(buf);
 106         ret = serial_stream_detect(serial, buf, &len, dmm->packet_size,
 107                                    dmm->packet_valid, 3000);
 108         if (ret != SR_OK)
 109                 goto scan_cleanup;
 110
 111         /*
 112          * If we dropped more than two packets worth of data, something is
 113          * wrong. We shouldn't quit however, since the dropped bytes might be
 114          * just zeroes at the beginning of the stream. Those can occur as a
 115          * combination of the nonstandard cable that ships with some devices
 116          * and the serial port or USB to serial adapter.
 117          */
 118         dropped = len - dmm->packet_size;
 119         if (dropped > 2 * dmm->packet_size)
 120                 sr_warn("Had to drop too much data.");
 121
 122         sr_info("Found device on port %s.", conn);
 123
 124         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 125         sdi->status = SR_ST_INACTIVE;
 126         sdi->vendor = g_strdup(dmm->vendor);
 127         sdi->model = g_strdup(dmm->device);
 128         devc = g_malloc0(sizeof(struct dev_context));
 129         sr_sw_limits_init(&devc->limits);
 130         sdi->inst_type = SR_INST_SERIAL;
 131         sdi->conn = serial;
 132         sdi->priv = devc;
 133         dmm->channel_count = 1;
 134         if (dmm->packet_parse == sr_brymen_bm86x_parse)
 135                 dmm->channel_count = BRYMEN_BM86X_DISPLAY_COUNT;
 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_CONN(ID, CHIPSET, VENDOR, MODEL, \
 200                 CONN, SERIALCOMM, PACKETSIZE, TIMEOUT, DELAY, \
 201                 REQUEST, VALID, PARSE, DETAILS) \
 202         &((struct dmm_info) { \
 203                 { \
 204                         .name = ID, \
 205                         .longname = VENDOR " " MODEL, \
 206                         .api_version = 1, \
 207                         .init = std_init, \
 208                         .cleanup = std_cleanup, \
 209                         .scan = scan, \
 210                         .dev_list = std_dev_list, \
 211                         .dev_clear = std_dev_clear, \
 212                         .config_get = NULL, \
 213                         .config_set = config_set, \
 214                         .config_list = config_list, \
 215                         .dev_open = std_serial_dev_open, \
 216                         .dev_close = std_serial_dev_close, \
 217                         .dev_acquisition_start = dev_acquisition_start, \
 218                         .dev_acquisition_stop = std_serial_dev_acquisition_stop, \
 219                         .context = NULL, \
 220                 }, \
 221                 VENDOR, MODEL, CONN, SERIALCOMM, PACKETSIZE, TIMEOUT, DELAY, \
 222                 REQUEST, 1, NULL, VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
 223         }).di
 224
 225 #define DMM(ID, CHIPSET, VENDOR, MODEL, SERIALCOMM, PACKETSIZE, TIMEOUT, \
 226                 DELAY, REQUEST, VALID, PARSE, DETAILS) \
 227         DMM_CONN(ID, CHIPSET, VENDOR, MODEL, NULL, SERIALCOMM, PACKETSIZE, \
 228                 TIMEOUT, DELAY, REQUEST, VALID, PARSE, DETAILS)
 229
 230 SR_REGISTER_DEV_DRIVER_LIST(serial_dmm_drivers,
 231         /*
 232          * The items are sorted by chipset first and then model name.
 233          *
 234          * This reflects the developer's perspective and is preferrable
 235          * during maintenance, as a vendor/product based sort order does
 236          * not work well for rebranded models, and from a support point
 237          * of view it's more important to identify similarities between
 238          * models and compatible devices.
 239          *
 240          * Fold marks {{{ }}} with matching braces were added, to further
 241          * speed up navigation in the long list.
 242          */
 243         /* asycii based meters {{{ */
 244         DMM(
 245                 "metrix-mx56c", asycii, "Metrix", "MX56C",
 246                 "2400/8n1", ASYCII_PACKET_SIZE, 0, 0, NULL,
 247                 sr_asycii_packet_valid, sr_asycii_parse, NULL
 248         ),
 249         /* }}} */
 250         /* bm25x based meters {{{ */
 251         DMM(
 252                 "brymen-bm25x", bm25x,
 253                 "Brymen", "BM25x", "9600/8n1/rts=1/dtr=1",
 254                 BRYMEN_BM25X_PACKET_SIZE, 0, 0, NULL,
 255                 sr_brymen_bm25x_packet_valid, sr_brymen_bm25x_parse,
 256                 NULL
 257         ),
 258         /* }}} */
 259         /* bm86x based meters {{{ */
 260         DMM_CONN(
 261                 "brymen-bm86x", brymen_bm86x, "Brymen", "BM86x",
 262                 "hid/bu86x", NULL, BRYMEN_BM86X_PACKET_SIZE, 500, 100,
 263                 sr_brymen_bm86x_packet_request,
 264                 sr_brymen_bm86x_packet_valid, sr_brymen_bm86x_parse,
 265                 NULL
 266         ),
 267         /* }}} */
 268         /* dtm0660 based meters {{{ */
 269         DMM(
 270                 "peaktech-3415", dtm0660,
 271                 "PeakTech", "3415", "2400/8n1/rts=0/dtr=1",
 272                 DTM0660_PACKET_SIZE, 0, 0, NULL,
 273                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 274         ),
 275         DMM(
 276                 "velleman-dvm4100", dtm0660,
 277                 "Velleman", "DVM4100", "2400/8n1/rts=0/dtr=1",
 278                 DTM0660_PACKET_SIZE, 0, 0, NULL,
 279                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 280         ),
 281         /* }}} */
 282         /* eev121gw based meters {{{ */
 283         DMM(
 284                 "eevblog-121gw", eev121gw, "EEVblog", "121GW",
 285                 "115200/8n1", EEV121GW_PACKET_SIZE, 0, 0, NULL,
 286                 sr_eev121gw_packet_valid, sr_eev121gw_3displays_parse, NULL
 287         ),
 288         /* }}} */
 289         /* es519xx based meters {{{ */
 290         DMM(
 291                 "iso-tech-idm103n", es519xx,
 292                 "ISO-TECH", "IDM103N", "2400/7o1/rts=0/dtr=1",
 293                 ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 294                 sr_es519xx_2400_11b_packet_valid, sr_es519xx_2400_11b_parse,
 295                 NULL
 296         ),
 297         /*
 298          * Note: ES51922 and ES51986 baudrate is actually 19230. This is
 299          * "out" by .15%, and so is well within the typical 1% margin
 300          * that is considered acceptable in UART communication, and thus
 301          * should not cause an issue.
 302          *
 303          * However, using 19230 as baudrate here will not work, as most DMM
 304          * cables do not support that baudrate!
 305          */
 306         DMM(
 307                 "tenma-72-7750-ser", es519xx,
 308                 "Tenma", "72-7750 (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 309                 ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 310                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 311                 NULL
 312         ),
 313         DMM(
 314                 "uni-t-ut60g-ser", es519xx,
 315                 "UNI-T", "UT60G (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 316                 ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 317                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 318                 NULL
 319         ),
 320         DMM(
 321                 "uni-t-ut61e-ser", es519xx,
 322                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 323                 ES519XX_14B_PACKET_SIZE, 0, 0, NULL,
 324                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 325                 NULL
 326         ),
 327         /* }}} */
 328         /* fs9721 based meters {{{ */
 329         DMM(
 330                 "digitek-dt4000zc", fs9721,
 331                 "Digitek", "DT4000ZC", "2400/8n1/dtr=1",
 332                 FS9721_PACKET_SIZE, 0, 0, NULL,
 333                 sr_fs9721_packet_valid, sr_fs9721_parse,
 334                 sr_fs9721_10_temp_c
 335         ),
 336         DMM(
 337                 "mastech-ms8250b", fs9721,
 338                 "MASTECH", "MS8250B", "2400/8n1/rts=0/dtr=1",
 339                 FS9721_PACKET_SIZE, 0, 0, NULL,
 340                 sr_fs9721_packet_valid, sr_fs9721_parse,
 341                 NULL
 342         ),
 343         DMM(
 344                 "pce-pce-dm32", fs9721,
 345                 "PCE", "PCE-DM32", "2400/8n1",
 346                 FS9721_PACKET_SIZE, 0, 0, NULL,
 347                 sr_fs9721_packet_valid, sr_fs9721_parse,
 348                 sr_fs9721_01_10_temp_f_c
 349         ),
 350         DMM(
 351                 "peaktech-3330", fs9721,
 352                 "PeakTech", "3330", "2400/8n1/dtr=1",
 353                 FS9721_PACKET_SIZE, 0, 0, NULL,
 354                 sr_fs9721_packet_valid, sr_fs9721_parse,
 355                 sr_fs9721_01_10_temp_f_c
 356         ),
 357         DMM(
 358                 "tecpel-dmm-8061-ser", fs9721,
 359                 "Tecpel", "DMM-8061 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 360                 FS9721_PACKET_SIZE, 0, 0, NULL,
 361                 sr_fs9721_packet_valid, sr_fs9721_parse,
 362                 sr_fs9721_00_temp_c
 363         ),
 364         DMM(
 365                 "tekpower-tp4000ZC", fs9721,
 366                 "TekPower", "TP4000ZC", "2400/8n1/dtr=1",
 367                 FS9721_PACKET_SIZE, 0, 0, NULL,
 368                 sr_fs9721_packet_valid, sr_fs9721_parse,
 369                 sr_fs9721_10_temp_c
 370         ),
 371         DMM(
 372                 "tenma-72-7745-ser", fs9721,
 373                 "Tenma", "72-7745 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 374                 FS9721_PACKET_SIZE, 0, 0, NULL,
 375                 sr_fs9721_packet_valid, sr_fs9721_parse,
 376                 sr_fs9721_00_temp_c
 377         ),
 378         DMM(
 379                 "uni-t-ut60a-ser", fs9721,
 380                 "UNI-T", "UT60A (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 381                 FS9721_PACKET_SIZE, 0, 0, NULL,
 382                 sr_fs9721_packet_valid, sr_fs9721_parse,
 383                 NULL
 384         ),
 385         DMM(
 386                 "uni-t-ut60e-ser", fs9721,
 387                 "UNI-T", "UT60E (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 388                 FS9721_PACKET_SIZE, 0, 0, NULL,
 389                 sr_fs9721_packet_valid, sr_fs9721_parse,
 390                 sr_fs9721_00_temp_c
 391         ),
 392         DMM(
 393                 "va-va18b", fs9721,
 394                 "V&A", "VA18B", "2400/8n1",
 395                 FS9721_PACKET_SIZE, 0, 0, NULL,
 396                 sr_fs9721_packet_valid, sr_fs9721_parse,
 397                 sr_fs9721_01_temp_c
 398         ),
 399         DMM(
 400                 "va-va40b", fs9721,
 401                 "V&A", "VA40B", "2400/8n1",
 402                 FS9721_PACKET_SIZE, 0, 0, NULL,
 403                 sr_fs9721_packet_valid, sr_fs9721_parse,
 404                 sr_fs9721_max_c_min
 405         ),
 406         DMM(
 407                 "voltcraft-vc820-ser", fs9721,
 408                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 409                 FS9721_PACKET_SIZE, 0, 0, NULL,
 410                 sr_fs9721_packet_valid, sr_fs9721_parse,
 411                 NULL
 412         ),
 413         DMM(
 414                 "voltcraft-vc840-ser", fs9721,
 415                 "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 416                 FS9721_PACKET_SIZE, 0, 0, NULL,
 417                 sr_fs9721_packet_valid, sr_fs9721_parse,
 418                 sr_fs9721_00_temp_c
 419         ),
 420         /* }}} */
 421         /* fs9922 based meters {{{ */
 422         DMM(
 423                 "sparkfun-70c", fs9922,
 424                 "SparkFun", "70C", "2400/8n1/rts=0/dtr=1",
 425                 FS9922_PACKET_SIZE, 0, 0, NULL,
 426                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 427         ),
 428         DMM(
 429                 "uni-t-ut61b-ser", fs9922,
 430                 "UNI-T", "UT61B (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 431                 FS9922_PACKET_SIZE, 0, 0, NULL,
 432                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 433         ),
 434         DMM(
 435                 "uni-t-ut61c-ser", fs9922,
 436                 "UNI-T", "UT61C (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 437                 FS9922_PACKET_SIZE, 0, 0, NULL,
 438                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 439         ),
 440         DMM(
 441                 "uni-t-ut61d-ser", fs9922,
 442                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 443                 FS9922_PACKET_SIZE, 0, 0, NULL,
 444                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 445         ),
 446         DMM_CONN(
 447                 "victor-dmm", fs9922, "Victor", "Victor DMMs",
 448                 "hid/victor", "2400/8n1", FS9922_PACKET_SIZE, 0, 0, NULL,
 449                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 450         ),
 451         DMM(
 452                 /*
 453                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 454                  * the FS9922 protocol. Instead, it only sets the user-defined
 455                  * bit "z1" to indicate "diode mode" and "voltage".
 456                  */
 457                 "voltcraft-vc830-ser", fs9922,
 458                 "Voltcraft", "VC-830 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 459                 FS9922_PACKET_SIZE, 0, 0, NULL,
 460                 sr_fs9922_packet_valid, sr_fs9922_parse,
 461                 &sr_fs9922_z1_diode
 462         ),
 463         /* }}} */
 464         /* m2110 based meters {{{ */
 465         DMM(
 466                 "bbcgm-2010", m2110,
 467                 "BBC Goertz Metrawatt", "M2110", "1200/7n2",
 468                 BBCGM_M2110_PACKET_SIZE, 0, 0, NULL,
 469                 sr_m2110_packet_valid, sr_m2110_parse,
 470                 NULL
 471         ),
 472         /* }}} */
 473         /* ms2115b based meters {{{ */
 474         DMM(
 475                 "mastech-ms2115b", ms2115b,
 476                 "MASTECH", "MS2115B", "1200/8n1",
 477                 MS2115B_PACKET_SIZE, 0, 0, NULL,
 478                 sr_ms2115b_packet_valid, sr_ms2115b_parse,
 479                 NULL
 480         ),
 481         /* }}} */
 482         /* ms8250d based meters {{{ */
 483         DMM(
 484                 "mastech-ms8250d", ms8250d,
 485                 "MASTECH", "MS8250D", "2400/8n1/rts=0/dtr=1",
 486                 MS8250D_PACKET_SIZE, 0, 0, NULL,
 487                 sr_ms8250d_packet_valid, sr_ms8250d_parse,
 488                 NULL
 489         ),
 490         /* }}} */
 491         /* metex14 based meters {{{ */
 492         DMM(
 493                 "mastech-mas345", metex14,
 494                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1",
 495                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 496                 sr_metex14_packet_valid, sr_metex14_parse,
 497                 NULL
 498         ),
 499         DMM(
 500                 "metex-m3640d", metex14,
 501                 "Metex", "M-3640D", "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-m3860m", metex14,
 508                 "Metex", "M-3860M", "9600/7n2/rts=0/dtr=1",
 509                 4 * METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 510                 sr_metex14_4packets_valid, sr_metex14_4packets_parse,
 511                 NULL
 512         ),
 513         DMM(
 514                 "metex-m4650cr", metex14,
 515                 "Metex", "M-4650CR", "1200/7n2/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                 "metex-me31", metex14,
 522                 "Metex", "ME-31", "600/7n2/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-3410", metex14,
 529                 "PeakTech", "3410", "600/7n2/rts=0/dtr=1",
 530                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 531                 sr_metex14_packet_valid, sr_metex14_parse,
 532                 NULL
 533         ),
 534         DMM(
 535                 "peaktech-4370", metex14,
 536                 "PeakTech", "4370", "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                 "peaktech-4390a", metex14,
 543                 "PeakTech", "4390A", "9600/7n2/rts=0/dtr=1",
 544                 4 * METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 545                 sr_metex14_4packets_valid, sr_metex14_4packets_parse,
 546                 NULL
 547         ),
 548         DMM(
 549                 "radioshack-22-168", metex14,
 550                 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1",
 551                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 552                 sr_metex14_packet_valid, sr_metex14_parse,
 553                 NULL
 554         ),
 555         DMM(
 556                 "radioshack-22-805", metex14,
 557                 "RadioShack", "22-805", "600/7n2/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-m3650cr", metex14,
 564                 "Voltcraft", "M-3650CR", "1200/7n2/rts=0/dtr=1",
 565                 METEX14_PACKET_SIZE, 150, 20, sr_metex14_packet_request,
 566                 sr_metex14_packet_valid, sr_metex14_parse,
 567                 NULL
 568         ),
 569         DMM(
 570                 "voltcraft-m3650d", metex14,
 571                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1",
 572                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 573                 sr_metex14_packet_valid, sr_metex14_parse,
 574                 NULL
 575         ),
 576         DMM(
 577                 "voltcraft-m4650cr", metex14,
 578                 "Voltcraft", "M-4650CR", "1200/7n2/rts=0/dtr=1",
 579                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 580                 sr_metex14_packet_valid, sr_metex14_parse,
 581                 NULL
 582         ),
 583         DMM(
 584                 "voltcraft-me42", metex14,
 585                 "Voltcraft", "ME-42", "600/7n2/rts=0/dtr=1",
 586                 METEX14_PACKET_SIZE, 250, 60, sr_metex14_packet_request,
 587                 sr_metex14_packet_valid, sr_metex14_parse,
 588                 NULL
 589         ),
 590         /* }}} */
 591         /* rs9lcd based meters {{{ */
 592         DMM(
 593                 "radioshack-22-812", rs9lcd,
 594                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1",
 595                 RS9LCD_PACKET_SIZE, 0, 0, NULL,
 596                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 597                 NULL
 598         ),
 599         /* }}} */
 600         /* ut71x based meters {{{ */
 601         DMM(
 602                 "tenma-72-7730-ser", ut71x,
 603                 "Tenma", "72-7730 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 604                 UT71X_PACKET_SIZE, 0, 0, NULL,
 605                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 606         ),
 607         DMM(
 608                 "tenma-72-7732-ser", ut71x,
 609                 "Tenma", "72-7732 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 610                 UT71X_PACKET_SIZE, 0, 0, NULL,
 611                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 612         ),
 613         DMM(
 614                 "tenma-72-9380a-ser", ut71x,
 615                 "Tenma", "72-9380A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 616                 UT71X_PACKET_SIZE, 0, 0, NULL,
 617                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 618         ),
 619         DMM(
 620                 "uni-t-ut71a-ser", ut71x,
 621                 "UNI-T", "UT71A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 622                 UT71X_PACKET_SIZE, 0, 0, NULL,
 623                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 624         ),
 625         DMM(
 626                 "uni-t-ut71b-ser", ut71x,
 627                 "UNI-T", "UT71B (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 628                 UT71X_PACKET_SIZE, 0, 0, NULL,
 629                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 630         ),
 631         DMM(
 632                 "uni-t-ut71c-ser", ut71x,
 633                 "UNI-T", "UT71C (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 634                 UT71X_PACKET_SIZE, 0, 0, NULL,
 635                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 636         ),
 637         DMM(
 638                 "uni-t-ut71d-ser", ut71x,
 639                 "UNI-T", "UT71D (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 640                 UT71X_PACKET_SIZE, 0, 0, NULL,
 641                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 642         ),
 643         DMM(
 644                 "uni-t-ut71e-ser", ut71x,
 645                 "UNI-T", "UT71E (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 646                 UT71X_PACKET_SIZE, 0, 0, NULL,
 647                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 648         ),
 649         DMM(
 650                 "voltcraft-vc920-ser", ut71x,
 651                 "Voltcraft", "VC-920 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 652                 UT71X_PACKET_SIZE, 0, 0, NULL,
 653                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 654         ),
 655         DMM(
 656                 "voltcraft-vc940-ser", ut71x,
 657                 "Voltcraft", "VC-940 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 658                 UT71X_PACKET_SIZE, 0, 0, NULL,
 659                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 660         ),
 661         DMM(
 662                 "voltcraft-vc960-ser", ut71x,
 663                 "Voltcraft", "VC-960 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 664                 UT71X_PACKET_SIZE, 0, 0, NULL,
 665                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 666         ),
 667         /* }}} */
 668         /* vc870 based meters {{{ */
 669         DMM(
 670                 "voltcraft-vc870-ser", vc870,
 671                 "Voltcraft", "VC-870 (UT-D02 cable)", "9600/8n1/rts=0/dtr=1",
 672                 VC870_PACKET_SIZE, 0, 0, NULL,
 673                 sr_vc870_packet_valid, sr_vc870_parse, NULL
 674         ),
 675         /* }}} */
 676         /* vc96 based meters {{{ */
 677         DMM(
 678                 "voltcraft-vc96", vc96,
 679                 "Voltcraft", "VC-96", "1200/8n2",
 680                 VC96_PACKET_SIZE, 0, 0, NULL,
 681                 sr_vc96_packet_valid, sr_vc96_parse,
 682                 NULL
 683         ),
 684         /* }}} */
 685         /*
 686          * The list is sorted. Add new items in the respective chip's group.
 687          */
 688 );