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
  60         dmm = (struct dmm_info *)di;
  61
  62         conn = serialcomm = NULL;
  63         for (l = options; l; l = l->next) {
  64                 src = l->data;
  65                 switch (src->key) {
  66                 case SR_CONF_CONN:
  67                         conn = g_variant_get_string(src->data, NULL);
  68                         break;
  69                 case SR_CONF_SERIALCOMM:
  70                         serialcomm = g_variant_get_string(src->data, NULL);
  71                         break;
  72                 }
  73         }
  74         if (!conn)
  75                 return NULL;
  76
  77         if (!serialcomm)
  78                 serialcomm = dmm->conn;
  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                                    dmm->baudrate);
 109         if (ret != SR_OK)
 110                 goto scan_cleanup;
 111
 112         /*
 113          * If we dropped more than two packets worth of data, something is
 114          * wrong. We shouldn't quit however, since the dropped bytes might be
 115          * just zeroes at the beginning of the stream. Those can occur as a
 116          * combination of the nonstandard cable that ships with some devices
 117          * and the serial port or USB to serial adapter.
 118          */
 119         dropped = len - dmm->packet_size;
 120         if (dropped > 2 * dmm->packet_size)
 121                 sr_warn("Had to drop too much data.");
 122
 123         sr_info("Found device on port %s.", conn);
 124
 125         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 126         sdi->status = SR_ST_INACTIVE;
 127         sdi->vendor = g_strdup(dmm->vendor);
 128         sdi->model = g_strdup(dmm->device);
 129         devc = g_malloc0(sizeof(struct dev_context));
 130         sr_sw_limits_init(&devc->limits);
 131         sdi->inst_type = SR_INST_SERIAL;
 132         sdi->conn = serial;
 133         sdi->priv = devc;
 134         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 135         devices = g_slist_append(devices, sdi);
 136
 137 scan_cleanup:
 138         serial_close(serial);
 139
 140         return std_scan_complete(di, devices);
 141 }
 142
 143 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 144                 const struct sr_channel_group *cg)
 145 {
 146         struct dev_context *devc;
 147
 148         (void)cg;
 149
 150         devc = sdi->priv;
 151
 152         return sr_sw_limits_config_set(&devc->limits, key, data);
 153 }
 154
 155 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 156                 const struct sr_channel_group *cg)
 157 {
 158         return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
 159 }
 160
 161 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 162 {
 163         struct dev_context *devc;
 164         struct sr_serial_dev_inst *serial;
 165
 166         devc = sdi->priv;
 167
 168         sr_sw_limits_acquisition_start(&devc->limits);
 169         std_session_send_df_header(sdi);
 170
 171         serial = sdi->conn;
 172         serial_source_add(sdi->session, serial, G_IO_IN, 50,
 173                       receive_data, (void *)sdi);
 174
 175         return SR_OK;
 176 }
 177
 178 #define DMM(ID, CHIPSET, VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, \
 179                         DELAY, REQUEST, VALID, PARSE, DETAILS) \
 180         &((struct dmm_info) { \
 181                 { \
 182                         .name = ID, \
 183                         .longname = VENDOR " " MODEL, \
 184                         .api_version = 1, \
 185                         .init = std_init, \
 186                         .cleanup = std_cleanup, \
 187                         .scan = scan, \
 188                         .dev_list = std_dev_list, \
 189                         .dev_clear = std_dev_clear, \
 190                         .config_get = NULL, \
 191                         .config_set = config_set, \
 192                         .config_list = config_list, \
 193                         .dev_open = std_serial_dev_open, \
 194                         .dev_close = std_serial_dev_close, \
 195                         .dev_acquisition_start = dev_acquisition_start, \
 196                         .dev_acquisition_stop = std_serial_dev_acquisition_stop, \
 197                         .context = NULL, \
 198                 }, \
 199                 VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, DELAY, \
 200                 REQUEST, VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
 201         }).di
 202
 203 SR_REGISTER_DEV_DRIVER_LIST(serial_dmm_drivers,
 204         /*
 205          * The items are sorted by chipset first and then model name.
 206          *
 207          * This reflects the developer's perspective and is preferrable
 208          * during maintenance, as a vendor/product based sort order does
 209          * not work well for rebranded models, and from a support point
 210          * of view it's more important to identify similarities between
 211          * models and compatible devices.
 212          *
 213          * Fold marks {{{ }}} with matching braces were added, to further
 214          * speed up navigation in the long list.
 215          */
 216         /* asycii based meters {{{ */
 217         DMM(
 218                 "metrix-mx56c", asycii, "Metrix", "MX56C",
 219                 "2400/8n1", 2400, ASYCII_PACKET_SIZE, 0, 0, NULL,
 220                 sr_asycii_packet_valid, sr_asycii_parse, NULL
 221         ),
 222         /* }}} */
 223         /* bm25x based meters {{{ */
 224         DMM(
 225                 "brymen-bm25x", bm25x,
 226                 "Brymen", "BM25x", "9600/8n1/rts=1/dtr=1",
 227                 9600, BRYMEN_BM25X_PACKET_SIZE, 0, 0, NULL,
 228                 sr_brymen_bm25x_packet_valid, sr_brymen_bm25x_parse,
 229                 NULL
 230         ),
 231         /* }}} */
 232         /* dtm0660 based meters {{{ */
 233         DMM(
 234                 "peaktech-3415", dtm0660,
 235                 "PeakTech", "3415", "2400/8n1/rts=0/dtr=1",
 236                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 237                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 238         ),
 239         DMM(
 240                 "velleman-dvm4100", dtm0660,
 241                 "Velleman", "DVM4100", "2400/8n1/rts=0/dtr=1",
 242                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 243                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 244         ),
 245         /* }}} */
 246         /* es519xx based meters {{{ */
 247         DMM(
 248                 "iso-tech-idm103n", es519xx,
 249                 "ISO-TECH", "IDM103N", "2400/7o1/rts=0/dtr=1",
 250                 2400, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 251                 sr_es519xx_2400_11b_packet_valid, sr_es519xx_2400_11b_parse,
 252                 NULL
 253         ),
 254         /*
 255          * Note: ES51922 and ES51986 baudrate is actually 19230. This is
 256          * "out" by .15%, and so is well within the typical 1% margin
 257          * that is considered acceptable in UART communication, and thus
 258          * should not cause an issue.
 259          *
 260          * However, using 19230 as baudrate here will not work, as most DMM
 261          * cables do not support that baudrate!
 262          */
 263         DMM(
 264                 "tenma-72-7750-ser", es519xx,
 265                 "Tenma", "72-7750 (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 266                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 267                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 268                 NULL
 269         ),
 270         DMM(
 271                 "uni-t-ut60g-ser", es519xx,
 272                 "UNI-T", "UT60G (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 273                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 274                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 275                 NULL
 276         ),
 277         DMM(
 278                 "uni-t-ut61e-ser", es519xx,
 279                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 280                 19200, ES519XX_14B_PACKET_SIZE, 0, 0, NULL,
 281                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 282                 NULL
 283         ),
 284         /* }}} */
 285         /* fs9721 based meters {{{ */
 286         DMM(
 287                 "digitek-dt4000zc", fs9721,
 288                 "Digitek", "DT4000ZC", "2400/8n1/dtr=1", 2400,
 289                 FS9721_PACKET_SIZE, 0, 0, NULL,
 290                 sr_fs9721_packet_valid, sr_fs9721_parse,
 291                 sr_fs9721_10_temp_c
 292         ),
 293         DMM(
 294                 "mastech-ms8250b", fs9721,
 295                 "MASTECH", "MS8250B", "2400/8n1/rts=0/dtr=1",
 296                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 297                 sr_fs9721_packet_valid, sr_fs9721_parse,
 298                 NULL
 299         ),
 300         DMM(
 301                 "pce-pce-dm32", fs9721,
 302                 "PCE", "PCE-DM32", "2400/8n1", 2400,
 303                 FS9721_PACKET_SIZE, 0, 0, NULL,
 304                 sr_fs9721_packet_valid, sr_fs9721_parse,
 305                 sr_fs9721_01_10_temp_f_c
 306         ),
 307         DMM(
 308                 "peaktech-3330", fs9721,
 309                 "PeakTech", "3330", "2400/8n1/dtr=1", 2400,
 310                 FS9721_PACKET_SIZE, 0, 0, NULL,
 311                 sr_fs9721_packet_valid, sr_fs9721_parse,
 312                 sr_fs9721_01_10_temp_f_c
 313         ),
 314         DMM(
 315                 "tecpel-dmm-8061-ser", fs9721,
 316                 "Tecpel", "DMM-8061 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 317                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 318                 sr_fs9721_packet_valid, sr_fs9721_parse,
 319                 sr_fs9721_00_temp_c
 320         ),
 321         DMM(
 322                 "tekpower-tp4000ZC", fs9721,
 323                 "TekPower", "TP4000ZC", "2400/8n1/dtr=1", 2400,
 324                 FS9721_PACKET_SIZE, 0, 0, NULL,
 325                 sr_fs9721_packet_valid, sr_fs9721_parse,
 326                 sr_fs9721_10_temp_c
 327         ),
 328         DMM(
 329                 "tenma-72-7745-ser", fs9721,
 330                 "Tenma", "72-7745 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 331                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 332                 sr_fs9721_packet_valid, sr_fs9721_parse,
 333                 sr_fs9721_00_temp_c
 334         ),
 335         DMM(
 336                 "uni-t-ut60a-ser", fs9721,
 337                 "UNI-T", "UT60A (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 338                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 339                 sr_fs9721_packet_valid, sr_fs9721_parse,
 340                 NULL
 341         ),
 342         DMM(
 343                 "uni-t-ut60e-ser", fs9721,
 344                 "UNI-T", "UT60E (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 345                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 346                 sr_fs9721_packet_valid, sr_fs9721_parse,
 347                 sr_fs9721_00_temp_c
 348         ),
 349         DMM(
 350                 "va-va18b", fs9721,
 351                 "V&A", "VA18B", "2400/8n1", 2400,
 352                 FS9721_PACKET_SIZE, 0, 0, NULL,
 353                 sr_fs9721_packet_valid, sr_fs9721_parse,
 354                 sr_fs9721_01_temp_c
 355         ),
 356         DMM(
 357                 "va-va40b", fs9721,
 358                 "V&A", "VA40B", "2400/8n1", 2400,
 359                 FS9721_PACKET_SIZE, 0, 0, NULL,
 360                 sr_fs9721_packet_valid, sr_fs9721_parse,
 361                 sr_fs9721_max_c_min
 362         ),
 363         DMM(
 364                 "voltcraft-vc820-ser", fs9721,
 365                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 366                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 367                 sr_fs9721_packet_valid, sr_fs9721_parse,
 368                 NULL
 369         ),
 370         DMM(
 371                 "voltcraft-vc840-ser", fs9721,
 372                 "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 373                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 374                 sr_fs9721_packet_valid, sr_fs9721_parse,
 375                 sr_fs9721_00_temp_c
 376         ),
 377         /* }}} */
 378         /* fs9922 based meters {{{ */
 379         DMM(
 380                 "sparkfun-70c", fs9922,
 381                 "SparkFun", "70C", "2400/8n1/rts=0/dtr=1",
 382                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 383                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 384         ),
 385         DMM(
 386                 "uni-t-ut61b-ser", fs9922,
 387                 "UNI-T", "UT61B (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 388                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 389                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 390         ),
 391         DMM(
 392                 "uni-t-ut61c-ser", fs9922,
 393                 "UNI-T", "UT61C (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 394                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 395                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 396         ),
 397         DMM(
 398                 "uni-t-ut61d-ser", fs9922,
 399                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 400                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 401                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 402         ),
 403         DMM(
 404                 /*
 405                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 406                  * the FS9922 protocol. Instead, it only sets the user-defined
 407                  * bit "z1" to indicate "diode mode" and "voltage".
 408                  */
 409                 "voltcraft-vc830-ser", fs9922,
 410                 "Voltcraft", "VC-830 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 411                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 412                 sr_fs9922_packet_valid, sr_fs9922_parse,
 413                 &sr_fs9922_z1_diode
 414         ),
 415         /* }}} */
 416         /* m2110 based meters {{{ */
 417         DMM(
 418                 "bbcgm-2010", m2110,
 419                 "BBC Goertz Metrawatt", "M2110", "1200/7n2", 1200,
 420                 BBCGM_M2110_PACKET_SIZE, 0, 0, NULL,
 421                 sr_m2110_packet_valid, sr_m2110_parse,
 422                 NULL
 423         ),
 424         /* }}} */
 425         /* metex14 based meters {{{ */
 426         DMM(
 427                 "mastech-mas345", metex14,
 428                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1", 600,
 429                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 430                 sr_metex14_packet_valid, sr_metex14_parse,
 431                 NULL
 432         ),
 433         DMM(
 434                 "metex-m3640d", metex14,
 435                 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1", 1200,
 436                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 437                 sr_metex14_packet_valid, sr_metex14_parse,
 438                 NULL
 439         ),
 440         DMM(
 441                 "metex-m4650cr", metex14,
 442                 "Metex", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 443                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 444                 sr_metex14_packet_valid, sr_metex14_parse,
 445                 NULL
 446         ),
 447         DMM(
 448                 "metex-me31", metex14,
 449                 "Metex", "ME-31", "600/7n2/rts=0/dtr=1", 600,
 450                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 451                 sr_metex14_packet_valid, sr_metex14_parse,
 452                 NULL
 453         ),
 454         DMM(
 455                 "peaktech-3410", metex14,
 456                 "PeakTech", "3410", "600/7n2/rts=0/dtr=1", 600,
 457                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 458                 sr_metex14_packet_valid, sr_metex14_parse,
 459                 NULL
 460         ),
 461         DMM(
 462                 "peaktech-4370", metex14,
 463                 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1", 1200,
 464                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 465                 sr_metex14_packet_valid, sr_metex14_parse,
 466                 NULL
 467         ),
 468         DMM(
 469                 "radioshack-22-168", metex14,
 470                 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1", 1200,
 471                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 472                 sr_metex14_packet_valid, sr_metex14_parse,
 473                 NULL
 474         ),
 475         DMM(
 476                 "radioshack-22-805", metex14,
 477                 "RadioShack", "22-805", "600/7n2/rts=0/dtr=1", 600,
 478                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 479                 sr_metex14_packet_valid, sr_metex14_parse,
 480                 NULL
 481         ),
 482         DMM(
 483                 "voltcraft-m3650cr", metex14,
 484                 "Voltcraft", "M-3650CR", "1200/7n2/rts=0/dtr=1", 1200,
 485                 METEX14_PACKET_SIZE, 150, 20, sr_metex14_packet_request,
 486                 sr_metex14_packet_valid, sr_metex14_parse,
 487                 NULL
 488         ),
 489         DMM(
 490                 "voltcraft-m3650d", metex14,
 491                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1", 1200,
 492                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 493                 sr_metex14_packet_valid, sr_metex14_parse,
 494                 NULL
 495         ),
 496         DMM(
 497                 "voltcraft-m4650cr", metex14,
 498                 "Voltcraft", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 499                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 500                 sr_metex14_packet_valid, sr_metex14_parse,
 501                 NULL
 502         ),
 503         DMM(
 504                 "voltcraft-me42", metex14,
 505                 "Voltcraft", "ME-42", "600/7n2/rts=0/dtr=1", 600,
 506                 METEX14_PACKET_SIZE, 250, 60, sr_metex14_packet_request,
 507                 sr_metex14_packet_valid, sr_metex14_parse,
 508                 NULL
 509         ),
 510         /* }}} */
 511         /* rs9lcd based meters {{{ */
 512         DMM(
 513                 "radioshack-22-812", rs9lcd,
 514                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1", 4800,
 515                 RS9LCD_PACKET_SIZE, 0, 0, NULL,
 516                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 517                 NULL
 518         ),
 519         /* }}} */
 520         /* ut71x based meters {{{ */
 521         DMM(
 522                 "tenma-72-7730-ser", ut71x,
 523                 "Tenma", "72-7730 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 524                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 525                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 526         ),
 527         DMM(
 528                 "tenma-72-7732-ser", ut71x,
 529                 "Tenma", "72-7732 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 530                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 531                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 532         ),
 533         DMM(
 534                 "tenma-72-9380a-ser", ut71x,
 535                 "Tenma", "72-9380A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 536                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 537                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 538         ),
 539         DMM(
 540                 "uni-t-ut71a-ser", ut71x,
 541                 "UNI-T", "UT71A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 542                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 543                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 544         ),
 545         DMM(
 546                 "uni-t-ut71b-ser", ut71x,
 547                 "UNI-T", "UT71B (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 548                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 549                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 550         ),
 551         DMM(
 552                 "uni-t-ut71c-ser", ut71x,
 553                 "UNI-T", "UT71C (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 554                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 555                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 556         ),
 557         DMM(
 558                 "uni-t-ut71d-ser", ut71x,
 559                 "UNI-T", "UT71D (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 560                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 561                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 562         ),
 563         DMM(
 564                 "uni-t-ut71e-ser", ut71x,
 565                 "UNI-T", "UT71E (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 566                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 567                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 568         ),
 569         DMM(
 570                 "voltcraft-vc920-ser", ut71x,
 571                 "Voltcraft", "VC-920 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 572                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 573                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 574         ),
 575         DMM(
 576                 "voltcraft-vc940-ser", ut71x,
 577                 "Voltcraft", "VC-940 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 578                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 579                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 580         ),
 581         DMM(
 582                 "voltcraft-vc960-ser", ut71x,
 583                 "Voltcraft", "VC-960 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 584                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 585                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 586         ),
 587         /* }}} */
 588         /* vc870 based meters {{{ */
 589         DMM(
 590                 "voltcraft-vc870-ser", vc870,
 591                 "Voltcraft", "VC-870 (UT-D02 cable)", "9600/8n1/rts=0/dtr=1",
 592                 9600, VC870_PACKET_SIZE, 0, 0, NULL,
 593                 sr_vc870_packet_valid, sr_vc870_parse, NULL
 594         ),
 595         /* }}} */
 596         /*
 597          * The list is sorted. Add new items in the respective chip's group.
 598          */
 599 );