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