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 devopts[] = {
  38         SR_CONF_MULTIMETER,
  39         SR_CONF_CONTINUOUS,
  40         SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
  41         SR_CONF_LIMIT_MSEC | SR_CONF_SET,
  42 };
  43
  44 static GSList *scan(struct sr_dev_driver *di, GSList *options)
  45 {
  46         struct dmm_info *dmm;
  47         struct sr_config *src;
  48         GSList *l, *devices;
  49         const char *conn, *serialcomm;
  50         struct sr_dev_inst *sdi;
  51         struct dev_context *devc;
  52         struct sr_serial_dev_inst *serial;
  53         int dropped, ret;
  54         size_t len;
  55         uint8_t buf[128];
  56
  57         dmm = (struct dmm_info *)di;
  58
  59         conn = serialcomm = NULL;
  60         for (l = options; l; l = l->next) {
  61                 src = l->data;
  62                 switch (src->key) {
  63                 case SR_CONF_CONN:
  64                         conn = g_variant_get_string(src->data, NULL);
  65                         break;
  66                 case SR_CONF_SERIALCOMM:
  67                         serialcomm = g_variant_get_string(src->data, NULL);
  68                         break;
  69                 }
  70         }
  71         if (!conn)
  72                 return NULL;
  73
  74         if (!serialcomm)
  75                 serialcomm = dmm->conn;
  76
  77         serial = sr_serial_dev_inst_new(conn, serialcomm);
  78
  79         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
  80                 return NULL;
  81
  82         sr_info("Probing serial port %s.", conn);
  83
  84         devices = NULL;
  85         serial_flush(serial);
  86
  87         /* Request a packet if the DMM requires this. */
  88         if (dmm->packet_request) {
  89                 if ((ret = dmm->packet_request(serial)) < 0) {
  90                         sr_err("Failed to request packet: %d.", ret);
  91                         return FALSE;
  92                 }
  93         }
  94
  95         /*
  96          * There's no way to get an ID from the multimeter. It just sends data
  97          * periodically (or upon request), so the best we can do is check if
  98          * the packets match the expected format.
  99          */
 100
 101         /* Let's get a bit of data and see if we can find a packet. */
 102         len = sizeof(buf);
 103         ret = serial_stream_detect(serial, buf, &len, dmm->packet_size,
 104                                    dmm->packet_valid, 3000,
 105                                    dmm->baudrate);
 106         if (ret != SR_OK)
 107                 goto scan_cleanup;
 108
 109         /*
 110          * If we dropped more than two packets worth of data, something is
 111          * wrong. We shouldn't quit however, since the dropped bytes might be
 112          * just zeroes at the beginning of the stream. Those can occur as a
 113          * combination of the nonstandard cable that ships with some devices
 114          * and the serial port or USB to serial adapter.
 115          */
 116         dropped = len - dmm->packet_size;
 117         if (dropped > 2 * dmm->packet_size)
 118                 sr_warn("Had to drop too much data.");
 119
 120         sr_info("Found device on port %s.", conn);
 121
 122         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 123         sdi->status = SR_ST_INACTIVE;
 124         sdi->vendor = g_strdup(dmm->vendor);
 125         sdi->model = g_strdup(dmm->device);
 126         devc = g_malloc0(sizeof(struct dev_context));
 127         sr_sw_limits_init(&devc->limits);
 128         sdi->inst_type = SR_INST_SERIAL;
 129         sdi->conn = serial;
 130         sdi->priv = devc;
 131         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 132         devices = g_slist_append(devices, sdi);
 133
 134 scan_cleanup:
 135         serial_close(serial);
 136
 137         return std_scan_complete(di, devices);
 138 }
 139
 140 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 141                 const struct sr_channel_group *cg)
 142 {
 143         struct dev_context *devc;
 144
 145         (void)cg;
 146
 147         devc = sdi->priv;
 148
 149         return sr_sw_limits_config_set(&devc->limits, key, data);
 150 }
 151
 152 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 153                 const struct sr_channel_group *cg)
 154 {
 155         return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, NULL, devopts);
 156 }
 157
 158 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 159 {
 160         struct dev_context *devc;
 161         struct sr_serial_dev_inst *serial;
 162
 163         devc = sdi->priv;
 164
 165         sr_sw_limits_acquisition_start(&devc->limits);
 166         std_session_send_df_header(sdi);
 167
 168         /* Poll every 50ms, or whenever some data comes in. */
 169         serial = sdi->conn;
 170         serial_source_add(sdi->session, serial, G_IO_IN, 50,
 171                       receive_data, (void *)sdi);
 172
 173         return SR_OK;
 174 }
 175
 176 #define DMM(ID, CHIPSET, VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, \
 177                         DELAY, REQUEST, VALID, PARSE, DETAILS) \
 178         &((struct dmm_info) { \
 179                 { \
 180                         .name = ID, \
 181                         .longname = VENDOR " " MODEL, \
 182                         .api_version = 1, \
 183                         .init = std_init, \
 184                         .cleanup = std_cleanup, \
 185                         .scan = scan, \
 186                         .dev_list = std_dev_list, \
 187                         .dev_clear = std_dev_clear, \
 188                         .config_get = NULL, \
 189                         .config_set = config_set, \
 190                         .config_list = config_list, \
 191                         .dev_open = std_serial_dev_open, \
 192                         .dev_close = std_serial_dev_close, \
 193                         .dev_acquisition_start = dev_acquisition_start, \
 194                         .dev_acquisition_stop = std_serial_dev_acquisition_stop, \
 195                         .context = NULL, \
 196                 }, \
 197                 VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, DELAY, \
 198                 REQUEST, VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
 199         }).di
 200
 201 SR_REGISTER_DEV_DRIVER_LIST(serial_dmm_drivers,
 202         /*
 203          * The items are sorted by chipset first and then model name.
 204          *
 205          * This reflects the developer's perspective and is preferrable
 206          * during maintenance, as a vendor/product based sort order does
 207          * not work well for rebranded models, and from a support point
 208          * of view it's more important to identify similarities between
 209          * models and compatible devices.
 210          *
 211          * Fold marks {{{ }}} with matching braces were added, to further
 212          * speed up navigation in the long list.
 213          */
 214         /* asycii based meters {{{ */
 215         DMM(
 216                 "metrix-mx56c", asycii, "Metrix", "MX56C",
 217                 "2400/8n1", 2400, ASYCII_PACKET_SIZE, 0, 0, NULL,
 218                 sr_asycii_packet_valid, sr_asycii_parse, NULL
 219         ),
 220         /* }}} */
 221         /* bm25x based meters {{{ */
 222         DMM(
 223                 "brymen-bm25x", bm25x,
 224                 "Brymen", "BM25x", "9600/8n1/rts=1/dtr=1",
 225                 9600, BRYMEN_BM25X_PACKET_SIZE, 0, 0, NULL,
 226                 sr_brymen_bm25x_packet_valid, sr_brymen_bm25x_parse,
 227                 NULL
 228         ),
 229         /* }}} */
 230         /* dtm0660 based meters {{{ */
 231         DMM(
 232                 "peaktech-3415", dtm0660,
 233                 "PeakTech", "3415", "2400/8n1/rts=0/dtr=1",
 234                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 235                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 236         ),
 237         DMM(
 238                 "velleman-dvm4100", dtm0660,
 239                 "Velleman", "DVM4100", "2400/8n1/rts=0/dtr=1",
 240                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 241                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 242         ),
 243         /* }}} */
 244         /* es519xx based meters {{{ */
 245         DMM(
 246                 "iso-tech-idm103n", es519xx,
 247                 "ISO-TECH", "IDM103N", "2400/7o1/rts=0/dtr=1",
 248                 2400, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 249                 sr_es519xx_2400_11b_packet_valid, sr_es519xx_2400_11b_parse,
 250                 NULL
 251         ),
 252         /*
 253          * Note: ES51922 and ES51986 baudrate is actually 19230. This is
 254          * "out" by .15%, and so is well within the typical 1% margin
 255          * that is considered acceptable in UART communication, and thus
 256          * should not cause an issue.
 257          *
 258          * However, using 19230 as baudrate here will not work, as most DMM
 259          * cables do not support that baudrate!
 260          */
 261         DMM(
 262                 "tenma-72-7750-ser", es519xx,
 263                 "Tenma", "72-7750 (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 264                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 265                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 266                 NULL
 267         ),
 268         DMM(
 269                 "uni-t-ut60g-ser", es519xx,
 270                 "UNI-T", "UT60G (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 271                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 272                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 273                 NULL
 274         ),
 275         DMM(
 276                 "uni-t-ut61e-ser", es519xx,
 277                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 278                 19200, ES519XX_14B_PACKET_SIZE, 0, 0, NULL,
 279                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 280                 NULL
 281         ),
 282         /* }}} */
 283         /* fs9721 based meters {{{ */
 284         DMM(
 285                 "digitek-dt4000zc", fs9721,
 286                 "Digitek", "DT4000ZC", "2400/8n1/dtr=1", 2400,
 287                 FS9721_PACKET_SIZE, 0, 0, NULL,
 288                 sr_fs9721_packet_valid, sr_fs9721_parse,
 289                 sr_fs9721_10_temp_c
 290         ),
 291         DMM(
 292                 "mastech-ms8250b", fs9721,
 293                 "MASTECH", "MS8250B", "2400/8n1/rts=0/dtr=1",
 294                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 295                 sr_fs9721_packet_valid, sr_fs9721_parse,
 296                 NULL
 297         ),
 298         DMM(
 299                 "pce-pce-dm32", fs9721,
 300                 "PCE", "PCE-DM32", "2400/8n1", 2400,
 301                 FS9721_PACKET_SIZE, 0, 0, NULL,
 302                 sr_fs9721_packet_valid, sr_fs9721_parse,
 303                 sr_fs9721_01_10_temp_f_c
 304         ),
 305         DMM(
 306                 "peaktech-3330", fs9721,
 307                 "PeakTech", "3330", "2400/8n1/dtr=1", 2400,
 308                 FS9721_PACKET_SIZE, 0, 0, NULL,
 309                 sr_fs9721_packet_valid, sr_fs9721_parse,
 310                 sr_fs9721_01_10_temp_f_c
 311         ),
 312         DMM(
 313                 "tecpel-dmm-8061-ser", fs9721,
 314                 "Tecpel", "DMM-8061 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 315                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 316                 sr_fs9721_packet_valid, sr_fs9721_parse,
 317                 sr_fs9721_00_temp_c
 318         ),
 319         DMM(
 320                 "tekpower-tp4000ZC", fs9721,
 321                 "TekPower", "TP4000ZC", "2400/8n1/dtr=1", 2400,
 322                 FS9721_PACKET_SIZE, 0, 0, NULL,
 323                 sr_fs9721_packet_valid, sr_fs9721_parse,
 324                 sr_fs9721_10_temp_c
 325         ),
 326         DMM(
 327                 "tenma-72-7745-ser", fs9721,
 328                 "Tenma", "72-7745 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 329                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 330                 sr_fs9721_packet_valid, sr_fs9721_parse,
 331                 sr_fs9721_00_temp_c
 332         ),
 333         DMM(
 334                 "uni-t-ut60a-ser", fs9721,
 335                 "UNI-T", "UT60A (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 336                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 337                 sr_fs9721_packet_valid, sr_fs9721_parse,
 338                 NULL
 339         ),
 340         DMM(
 341                 "uni-t-ut60e-ser", fs9721,
 342                 "UNI-T", "UT60E (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 343                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 344                 sr_fs9721_packet_valid, sr_fs9721_parse,
 345                 sr_fs9721_00_temp_c
 346         ),
 347         DMM(
 348                 "va-va18b", fs9721,
 349                 "V&A", "VA18B", "2400/8n1", 2400,
 350                 FS9721_PACKET_SIZE, 0, 0, NULL,
 351                 sr_fs9721_packet_valid, sr_fs9721_parse,
 352                 sr_fs9721_01_temp_c
 353         ),
 354         DMM(
 355                 "va-va40b", fs9721,
 356                 "V&A", "VA40B", "2400/8n1", 2400,
 357                 FS9721_PACKET_SIZE, 0, 0, NULL,
 358                 sr_fs9721_packet_valid, sr_fs9721_parse,
 359                 sr_fs9721_max_c_min
 360         ),
 361         DMM(
 362                 "voltcraft-vc820-ser", fs9721,
 363                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 364                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 365                 sr_fs9721_packet_valid, sr_fs9721_parse,
 366                 NULL
 367         ),
 368         DMM(
 369                 "voltcraft-vc840-ser", fs9721,
 370                 "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 371                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 372                 sr_fs9721_packet_valid, sr_fs9721_parse,
 373                 sr_fs9721_00_temp_c
 374         ),
 375         /* }}} */
 376         /* fs9922 based meters {{{ */
 377         DMM(
 378                 "sparkfun-70c", fs9922,
 379                 "SparkFun", "70C", "2400/8n1/rts=0/dtr=1",
 380                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 381                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 382         ),
 383         DMM(
 384                 "uni-t-ut61b-ser", fs9922,
 385                 "UNI-T", "UT61B (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 386                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 387                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 388         ),
 389         DMM(
 390                 "uni-t-ut61c-ser", fs9922,
 391                 "UNI-T", "UT61C (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 392                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 393                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 394         ),
 395         DMM(
 396                 "uni-t-ut61d-ser", fs9922,
 397                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 398                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 399                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 400         ),
 401         DMM(
 402                 /*
 403                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 404                  * the FS9922 protocol. Instead, it only sets the user-defined
 405                  * bit "z1" to indicate "diode mode" and "voltage".
 406                  */
 407                 "voltcraft-vc830-ser", fs9922,
 408                 "Voltcraft", "VC-830 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 409                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 410                 sr_fs9922_packet_valid, sr_fs9922_parse,
 411                 &sr_fs9922_z1_diode
 412         ),
 413         /* }}} */
 414         /* m2110 based meters {{{ */
 415         DMM(
 416                 "bbcgm-2010", m2110,
 417                 "BBC Goertz Metrawatt", "M2110", "1200/7n2", 1200,
 418                 BBCGM_M2110_PACKET_SIZE, 0, 0, NULL,
 419                 sr_m2110_packet_valid, sr_m2110_parse,
 420                 NULL
 421         ),
 422         /* }}} */
 423         /* metex14 based meters {{{ */
 424         DMM(
 425                 "mastech-mas345", metex14,
 426                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1", 600,
 427                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 428                 sr_metex14_packet_valid, sr_metex14_parse,
 429                 NULL
 430         ),
 431         DMM(
 432                 "metex-m3640d", metex14,
 433                 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1", 1200,
 434                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 435                 sr_metex14_packet_valid, sr_metex14_parse,
 436                 NULL
 437         ),
 438         DMM(
 439                 "metex-m4650cr", metex14,
 440                 "Metex", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 441                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 442                 sr_metex14_packet_valid, sr_metex14_parse,
 443                 NULL
 444         ),
 445         DMM(
 446                 "metex-me31", metex14,
 447                 "Metex", "ME-31", "600/7n2/rts=0/dtr=1", 600,
 448                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 449                 sr_metex14_packet_valid, sr_metex14_parse,
 450                 NULL
 451         ),
 452         DMM(
 453                 "peaktech-3410", metex14,
 454                 "PeakTech", "3410", "600/7n2/rts=0/dtr=1", 600,
 455                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 456                 sr_metex14_packet_valid, sr_metex14_parse,
 457                 NULL
 458         ),
 459         DMM(
 460                 "peaktech-4370", metex14,
 461                 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1", 1200,
 462                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 463                 sr_metex14_packet_valid, sr_metex14_parse,
 464                 NULL
 465         ),
 466         DMM(
 467                 "radioshack-22-168", metex14,
 468                 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1", 1200,
 469                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 470                 sr_metex14_packet_valid, sr_metex14_parse,
 471                 NULL
 472         ),
 473         DMM(
 474                 "radioshack-22-805", metex14,
 475                 "RadioShack", "22-805", "600/7n2/rts=0/dtr=1", 600,
 476                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 477                 sr_metex14_packet_valid, sr_metex14_parse,
 478                 NULL
 479         ),
 480         DMM(
 481                 "voltcraft-m3650cr", metex14,
 482                 "Voltcraft", "M-3650CR", "1200/7n2/rts=0/dtr=1", 1200,
 483                 METEX14_PACKET_SIZE, 150, 20, sr_metex14_packet_request,
 484                 sr_metex14_packet_valid, sr_metex14_parse,
 485                 NULL
 486         ),
 487         DMM(
 488                 "voltcraft-m3650d", metex14,
 489                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1", 1200,
 490                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 491                 sr_metex14_packet_valid, sr_metex14_parse,
 492                 NULL
 493         ),
 494         DMM(
 495                 "voltcraft-m4650cr", metex14,
 496                 "Voltcraft", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 497                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 498                 sr_metex14_packet_valid, sr_metex14_parse,
 499                 NULL
 500         ),
 501         DMM(
 502                 "voltcraft-me42", metex14,
 503                 "Voltcraft", "ME-42", "600/7n2/rts=0/dtr=1", 600,
 504                 METEX14_PACKET_SIZE, 250, 60, sr_metex14_packet_request,
 505                 sr_metex14_packet_valid, sr_metex14_parse,
 506                 NULL
 507         ),
 508         /* }}} */
 509         /* rs9lcd based meters {{{ */
 510         DMM(
 511                 "radioshack-22-812", rs9lcd,
 512                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1", 4800,
 513                 RS9LCD_PACKET_SIZE, 0, 0, NULL,
 514                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 515                 NULL
 516         ),
 517         /* }}} */
 518         /* ut71x based meters {{{ */
 519         DMM(
 520                 "tenma-72-7730-ser", ut71x,
 521                 "Tenma", "72-7730 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 522                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 523                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 524         ),
 525         DMM(
 526                 "tenma-72-7732-ser", ut71x,
 527                 "Tenma", "72-7732 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 528                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 529                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 530         ),
 531         DMM(
 532                 "tenma-72-9380a-ser", ut71x,
 533                 "Tenma", "72-9380A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 534                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 535                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 536         ),
 537         DMM(
 538                 "uni-t-ut71a-ser", ut71x,
 539                 "UNI-T", "UT71A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 540                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 541                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 542         ),
 543         DMM(
 544                 "uni-t-ut71b-ser", ut71x,
 545                 "UNI-T", "UT71B (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 546                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 547                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 548         ),
 549         DMM(
 550                 "uni-t-ut71c-ser", ut71x,
 551                 "UNI-T", "UT71C (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 552                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 553                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 554         ),
 555         DMM(
 556                 "uni-t-ut71d-ser", ut71x,
 557                 "UNI-T", "UT71D (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 558                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 559                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 560         ),
 561         DMM(
 562                 "uni-t-ut71e-ser", ut71x,
 563                 "UNI-T", "UT71E (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 564                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 565                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 566         ),
 567         DMM(
 568                 "voltcraft-vc920-ser", ut71x,
 569                 "Voltcraft", "VC-920 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 570                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 571                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 572         ),
 573         DMM(
 574                 "voltcraft-vc940-ser", ut71x,
 575                 "Voltcraft", "VC-940 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 576                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 577                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 578         ),
 579         DMM(
 580                 "voltcraft-vc960-ser", ut71x,
 581                 "Voltcraft", "VC-960 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 582                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 583                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 584         ),
 585         /* }}} */
 586         /* vc870 based meters {{{ */
 587         DMM(
 588                 "voltcraft-vc870-ser", vc870,
 589                 "Voltcraft", "VC-870 (UT-D02 cable)", "9600/8n1/rts=0/dtr=1",
 590                 9600, VC870_PACKET_SIZE, 0, 0, NULL,
 591                 sr_vc870_packet_valid, sr_vc870_parse, NULL
 592         ),
 593         /* }}} */
 594         /*
 595          * The list is sorted. Add new items in the respective chip's group.
 596          */
 597 );