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         if (sdi->status != SR_ST_ACTIVE)
 148                 return SR_ERR_DEV_CLOSED;
 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         (void)sdi;
 159         (void)cg;
 160
 161         switch (key) {
 162         case SR_CONF_SCAN_OPTIONS:
 163                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 164                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 165                 break;
 166         case SR_CONF_DEVICE_OPTIONS:
 167                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 168                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 169                 break;
 170         default:
 171                 return SR_ERR_NA;
 172         }
 173
 174         return SR_OK;
 175 }
 176
 177 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 178 {
 179         struct dev_context *devc;
 180         struct sr_serial_dev_inst *serial;
 181
 182         devc = sdi->priv;
 183
 184         sr_sw_limits_acquisition_start(&devc->limits);
 185         std_session_send_df_header(sdi);
 186
 187         /* Poll every 50ms, or whenever some data comes in. */
 188         serial = sdi->conn;
 189         serial_source_add(sdi->session, serial, G_IO_IN, 50,
 190                       receive_data, (void *)sdi);
 191
 192         return SR_OK;
 193 }
 194
 195 #define DMM(ID, CHIPSET, VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, \
 196                         DELAY, REQUEST, VALID, PARSE, DETAILS) \
 197         &((struct dmm_info) { \
 198                 { \
 199                         .name = ID, \
 200                         .longname = VENDOR " " MODEL, \
 201                         .api_version = 1, \
 202                         .init = std_init, \
 203                         .cleanup = std_cleanup, \
 204                         .scan = scan, \
 205                         .dev_list = std_dev_list, \
 206                         .config_get = NULL, \
 207                         .config_set = config_set, \
 208                         .config_list = config_list, \
 209                         .dev_open = std_serial_dev_open, \
 210                         .dev_close = std_serial_dev_close, \
 211                         .dev_acquisition_start = dev_acquisition_start, \
 212                         .dev_acquisition_stop = std_serial_dev_acquisition_stop, \
 213                         .context = NULL, \
 214                 }, \
 215                 VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, DELAY, \
 216                 REQUEST, VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
 217         }).di
 218
 219 SR_REGISTER_DEV_DRIVER_LIST(serial_dmm_drivers,
 220         /*
 221          * The items are sorted by chipset first and then model name.
 222          *
 223          * This reflects the developer's perspective and is preferrable
 224          * during maintenance, as a vendor/product based sort order does
 225          * not work well for rebranded models, and from a support point
 226          * of view it's more important to identify similarities between
 227          * models and compatible devices.
 228          *
 229          * Fold marks {{{ }}} with matching braces were added, to further
 230          * speed up navigation in the long list.
 231          */
 232         /* asycii based meters {{{ */
 233         DMM(
 234                 "metrix-mx56c", asycii, "Metrix", "MX56C",
 235                 "2400/8n1", 2400, ASYCII_PACKET_SIZE, 0, 0, NULL,
 236                 sr_asycii_packet_valid, sr_asycii_parse, NULL
 237         ),
 238         /* }}} */
 239         /* bm25x based meters {{{ */
 240         DMM(
 241                 "brymen-bm25x", bm25x,
 242                 "Brymen", "BM25x", "9600/8n1/rts=1/dtr=1",
 243                 9600, BRYMEN_BM25X_PACKET_SIZE, 0, 0, NULL,
 244                 sr_brymen_bm25x_packet_valid, sr_brymen_bm25x_parse,
 245                 NULL
 246         ),
 247         /* }}} */
 248         /* dtm0660 based meters {{{ */
 249         DMM(
 250                 "peaktech-3415", dtm0660,
 251                 "PeakTech", "3415", "2400/8n1/rts=0/dtr=1",
 252                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 253                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 254         ),
 255         DMM(
 256                 "velleman-dvm4100", dtm0660,
 257                 "Velleman", "DVM4100", "2400/8n1/rts=0/dtr=1",
 258                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 259                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 260         ),
 261         /* }}} */
 262         /* es519xx based meters {{{ */
 263         DMM(
 264                 "iso-tech-idm103n", es519xx,
 265                 "ISO-TECH", "IDM103N", "2400/7o1/rts=0/dtr=1",
 266                 2400, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 267                 sr_es519xx_2400_11b_packet_valid, sr_es519xx_2400_11b_parse,
 268                 NULL
 269         ),
 270         /*
 271          * Note: ES51922 and ES51986 baudrate is actually 19230. This is
 272          * "out" by .15%, and so is well within the typical 1% margin
 273          * that is considered acceptable in UART communication, and thus
 274          * should not cause an issue.
 275          *
 276          * However, using 19230 as baudrate here will not work, as most DMM
 277          * cables do not support that baudrate!
 278          */
 279         DMM(
 280                 "tenma-72-7750-ser", es519xx,
 281                 "Tenma", "72-7750 (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 282                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 283                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 284                 NULL
 285         ),
 286         DMM(
 287                 "uni-t-ut60g-ser", es519xx,
 288                 "UNI-T", "UT60G (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 289                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 290                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 291                 NULL
 292         ),
 293         DMM(
 294                 "uni-t-ut61e-ser", es519xx,
 295                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 296                 19200, ES519XX_14B_PACKET_SIZE, 0, 0, NULL,
 297                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 298                 NULL
 299         ),
 300         /* }}} */
 301         /* fs9721 based meters {{{ */
 302         DMM(
 303                 "digitek-dt4000zc", fs9721,
 304                 "Digitek", "DT4000ZC", "2400/8n1/dtr=1", 2400,
 305                 FS9721_PACKET_SIZE, 0, 0, NULL,
 306                 sr_fs9721_packet_valid, sr_fs9721_parse,
 307                 sr_fs9721_10_temp_c
 308         ),
 309         DMM(
 310                 "mastech-ms8250b", fs9721,
 311                 "MASTECH", "MS8250B", "2400/8n1/rts=0/dtr=1",
 312                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 313                 sr_fs9721_packet_valid, sr_fs9721_parse,
 314                 NULL
 315         ),
 316         DMM(
 317                 "pce-pce-dm32", fs9721,
 318                 "PCE", "PCE-DM32", "2400/8n1", 2400,
 319                 FS9721_PACKET_SIZE, 0, 0, NULL,
 320                 sr_fs9721_packet_valid, sr_fs9721_parse,
 321                 sr_fs9721_01_10_temp_f_c
 322         ),
 323         DMM(
 324                 "peaktech-3330", fs9721,
 325                 "PeakTech", "3330", "2400/8n1/dtr=1", 2400,
 326                 FS9721_PACKET_SIZE, 0, 0, NULL,
 327                 sr_fs9721_packet_valid, sr_fs9721_parse,
 328                 sr_fs9721_01_10_temp_f_c
 329         ),
 330         DMM(
 331                 "tecpel-dmm-8061-ser", fs9721,
 332                 "Tecpel", "DMM-8061 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 333                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 334                 sr_fs9721_packet_valid, sr_fs9721_parse,
 335                 sr_fs9721_00_temp_c
 336         ),
 337         DMM(
 338                 "tekpower-tp4000ZC", fs9721,
 339                 "TekPower", "TP4000ZC", "2400/8n1/dtr=1", 2400,
 340                 FS9721_PACKET_SIZE, 0, 0, NULL,
 341                 sr_fs9721_packet_valid, sr_fs9721_parse,
 342                 sr_fs9721_10_temp_c
 343         ),
 344         DMM(
 345                 "tenma-72-7745-ser", fs9721,
 346                 "Tenma", "72-7745 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 347                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 348                 sr_fs9721_packet_valid, sr_fs9721_parse,
 349                 sr_fs9721_00_temp_c
 350         ),
 351         DMM(
 352                 "uni-t-ut60a-ser", fs9721,
 353                 "UNI-T", "UT60A (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 354                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 355                 sr_fs9721_packet_valid, sr_fs9721_parse,
 356                 NULL
 357         ),
 358         DMM(
 359                 "uni-t-ut60e-ser", fs9721,
 360                 "UNI-T", "UT60E (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 361                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 362                 sr_fs9721_packet_valid, sr_fs9721_parse,
 363                 sr_fs9721_00_temp_c
 364         ),
 365         DMM(
 366                 "va-va18b", fs9721,
 367                 "V&A", "VA18B", "2400/8n1", 2400,
 368                 FS9721_PACKET_SIZE, 0, 0, NULL,
 369                 sr_fs9721_packet_valid, sr_fs9721_parse,
 370                 sr_fs9721_01_temp_c
 371         ),
 372         DMM(
 373                 "va-va40b", fs9721,
 374                 "V&A", "VA40B", "2400/8n1", 2400,
 375                 FS9721_PACKET_SIZE, 0, 0, NULL,
 376                 sr_fs9721_packet_valid, sr_fs9721_parse,
 377                 sr_fs9721_max_c_min
 378         ),
 379         DMM(
 380                 "voltcraft-vc820-ser", fs9721,
 381                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 382                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 383                 sr_fs9721_packet_valid, sr_fs9721_parse,
 384                 NULL
 385         ),
 386         DMM(
 387                 "voltcraft-vc840-ser", fs9721,
 388                 "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 389                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 390                 sr_fs9721_packet_valid, sr_fs9721_parse,
 391                 sr_fs9721_00_temp_c
 392         ),
 393         /* }}} */
 394         /* fs9922 based meters {{{ */
 395         DMM(
 396                 "sparkfun-70c", fs9922,
 397                 "SparkFun", "70C", "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                 "uni-t-ut61b-ser", fs9922,
 403                 "UNI-T", "UT61B (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 404                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 405                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 406         ),
 407         DMM(
 408                 "uni-t-ut61c-ser", fs9922,
 409                 "UNI-T", "UT61C (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 410                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 411                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 412         ),
 413         DMM(
 414                 "uni-t-ut61d-ser", fs9922,
 415                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 416                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 417                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 418         ),
 419         DMM(
 420                 /*
 421                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 422                  * the FS9922 protocol. Instead, it only sets the user-defined
 423                  * bit "z1" to indicate "diode mode" and "voltage".
 424                  */
 425                 "voltcraft-vc830-ser", fs9922,
 426                 "Voltcraft", "VC-830 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 427                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 428                 sr_fs9922_packet_valid, sr_fs9922_parse,
 429                 &sr_fs9922_z1_diode
 430         ),
 431         /* }}} */
 432         /* m2110 based meters {{{ */
 433         DMM(
 434                 "bbcgm-2010", m2110,
 435                 "BBC Goertz Metrawatt", "M2110", "1200/7n2", 1200,
 436                 BBCGM_M2110_PACKET_SIZE, 0, 0, NULL,
 437                 sr_m2110_packet_valid, sr_m2110_parse,
 438                 NULL
 439         ),
 440         /* }}} */
 441         /* metex14 based meters {{{ */
 442         DMM(
 443                 "mastech-mas345", metex14,
 444                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1", 600,
 445                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 446                 sr_metex14_packet_valid, sr_metex14_parse,
 447                 NULL
 448         ),
 449         DMM(
 450                 "metex-m3640d", metex14,
 451                 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1", 1200,
 452                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 453                 sr_metex14_packet_valid, sr_metex14_parse,
 454                 NULL
 455         ),
 456         DMM(
 457                 "metex-m4650cr", metex14,
 458                 "Metex", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 459                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 460                 sr_metex14_packet_valid, sr_metex14_parse,
 461                 NULL
 462         ),
 463         DMM(
 464                 "metex-me31", metex14,
 465                 "Metex", "ME-31", "600/7n2/rts=0/dtr=1", 600,
 466                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 467                 sr_metex14_packet_valid, sr_metex14_parse,
 468                 NULL
 469         ),
 470         DMM(
 471                 "peaktech-3410", metex14,
 472                 "PeakTech", "3410", "600/7n2/rts=0/dtr=1", 600,
 473                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 474                 sr_metex14_packet_valid, sr_metex14_parse,
 475                 NULL
 476         ),
 477         DMM(
 478                 "peaktech-4370", metex14,
 479                 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1", 1200,
 480                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 481                 sr_metex14_packet_valid, sr_metex14_parse,
 482                 NULL
 483         ),
 484         DMM(
 485                 "radioshack-22-168", metex14,
 486                 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1", 1200,
 487                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 488                 sr_metex14_packet_valid, sr_metex14_parse,
 489                 NULL
 490         ),
 491         DMM(
 492                 "radioshack-22-805", metex14,
 493                 "RadioShack", "22-805", "600/7n2/rts=0/dtr=1", 600,
 494                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 495                 sr_metex14_packet_valid, sr_metex14_parse,
 496                 NULL
 497         ),
 498         DMM(
 499                 "voltcraft-m3650cr", metex14,
 500                 "Voltcraft", "M-3650CR", "1200/7n2/rts=0/dtr=1", 1200,
 501                 METEX14_PACKET_SIZE, 150, 20, sr_metex14_packet_request,
 502                 sr_metex14_packet_valid, sr_metex14_parse,
 503                 NULL
 504         ),
 505         DMM(
 506                 "voltcraft-m3650d", metex14,
 507                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1", 1200,
 508                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 509                 sr_metex14_packet_valid, sr_metex14_parse,
 510                 NULL
 511         ),
 512         DMM(
 513                 "voltcraft-m4650cr", metex14,
 514                 "Voltcraft", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 515                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 516                 sr_metex14_packet_valid, sr_metex14_parse,
 517                 NULL
 518         ),
 519         DMM(
 520                 "voltcraft-me42", metex14,
 521                 "Voltcraft", "ME-42", "600/7n2/rts=0/dtr=1", 600,
 522                 METEX14_PACKET_SIZE, 250, 60, sr_metex14_packet_request,
 523                 sr_metex14_packet_valid, sr_metex14_parse,
 524                 NULL
 525         ),
 526         /* }}} */
 527         /* rs9lcd based meters {{{ */
 528         DMM(
 529                 "radioshack-22-812", rs9lcd,
 530                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1", 4800,
 531                 RS9LCD_PACKET_SIZE, 0, 0, NULL,
 532                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 533                 NULL
 534         ),
 535         /* }}} */
 536         /* ut71x based meters {{{ */
 537         DMM(
 538                 "tenma-72-7730-ser", ut71x,
 539                 "Tenma", "72-7730 (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                 "tenma-72-7732-ser", ut71x,
 545                 "Tenma", "72-7732 (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                 "tenma-72-9380a-ser", ut71x,
 551                 "Tenma", "72-9380A (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-ut71a-ser", ut71x,
 557                 "UNI-T", "UT71A (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-ut71b-ser", ut71x,
 563                 "UNI-T", "UT71B (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                 "uni-t-ut71c-ser", ut71x,
 569                 "UNI-T", "UT71C (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                 "uni-t-ut71d-ser", ut71x,
 575                 "UNI-T", "UT71D (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                 "uni-t-ut71e-ser", ut71x,
 581                 "UNI-T", "UT71E (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         DMM(
 586                 "voltcraft-vc920-ser", ut71x,
 587                 "Voltcraft", "VC-920 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 588                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 589                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 590         ),
 591         DMM(
 592                 "voltcraft-vc940-ser", ut71x,
 593                 "Voltcraft", "VC-940 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 594                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 595                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 596         ),
 597         DMM(
 598                 "voltcraft-vc960-ser", ut71x,
 599                 "Voltcraft", "VC-960 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 600                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 601                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 602         ),
 603         /* }}} */
 604         /* vc870 based meters {{{ */
 605         DMM(
 606                 "voltcraft-vc870-ser", vc870,
 607                 "Voltcraft", "VC-870 (UT-D02 cable)", "9600/8n1/rts=0/dtr=1",
 608                 9600, VC870_PACKET_SIZE, 0, 0, NULL,
 609                 sr_vc870_packet_valid, sr_vc870_parse, NULL
 610         ),
 611         /* }}} */
 612         /*
 613          * The list is sorted. Add new items in the respective chip's group.
 614          */
 615 );