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 int dev_clear(const struct sr_dev_driver *di)
  45 {
  46         return std_dev_clear(di, NULL);
  47 }
  48
  49 static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
  50 {
  51         return std_init(sr_ctx, di, LOG_PREFIX);
  52 }
  53
  54 static GSList *scan(struct sr_dev_driver *di, GSList *options)
  55 {
  56         struct dmm_info *dmm;
  57         struct sr_config *src;
  58         GSList *l, *devices;
  59         const char *conn, *serialcomm;
  60         struct sr_dev_inst *sdi;
  61         struct drv_context *drvc;
  62         struct dev_context *devc;
  63         struct sr_serial_dev_inst *serial;
  64         int dropped, ret;
  65         size_t len;
  66         uint8_t buf[128];
  67
  68         dmm = (struct dmm_info *)di;
  69
  70         conn = serialcomm = NULL;
  71         for (l = options; l; l = l->next) {
  72                 src = l->data;
  73                 switch (src->key) {
  74                 case SR_CONF_CONN:
  75                         conn = g_variant_get_string(src->data, NULL);
  76                         break;
  77                 case SR_CONF_SERIALCOMM:
  78                         serialcomm = g_variant_get_string(src->data, NULL);
  79                         break;
  80                 }
  81         }
  82         if (!conn)
  83                 return NULL;
  84
  85         if (!serialcomm)
  86                 serialcomm = dmm->conn;
  87
  88         serial = sr_serial_dev_inst_new(conn, serialcomm);
  89
  90         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
  91                 return NULL;
  92
  93         sr_info("Probing serial port %s.", conn);
  94
  95         drvc = di->context;
  96         devices = NULL;
  97         serial_flush(serial);
  98
  99         /* Request a packet if the DMM requires this. */
 100         if (dmm->packet_request) {
 101                 if ((ret = dmm->packet_request(serial)) < 0) {
 102                         sr_err("Failed to request packet: %d.", ret);
 103                         return FALSE;
 104                 }
 105         }
 106
 107         /*
 108          * There's no way to get an ID from the multimeter. It just sends data
 109          * periodically (or upon request), so the best we can do is check if
 110          * the packets match the expected format.
 111          */
 112
 113         /* Let's get a bit of data and see if we can find a packet. */
 114         len = sizeof(buf);
 115         ret = serial_stream_detect(serial, buf, &len, dmm->packet_size,
 116                                    dmm->packet_valid, 3000,
 117                                    dmm->baudrate);
 118         if (ret != SR_OK)
 119                 goto scan_cleanup;
 120
 121         /*
 122          * If we dropped more than two packets worth of data, something is
 123          * wrong. We shouldn't quit however, since the dropped bytes might be
 124          * just zeroes at the beginning of the stream. Those can occur as a
 125          * combination of the nonstandard cable that ships with some devices
 126          * and the serial port or USB to serial adapter.
 127          */
 128         dropped = len - dmm->packet_size;
 129         if (dropped > 2 * dmm->packet_size)
 130                 sr_warn("Had to drop too much data.");
 131
 132         sr_info("Found device on port %s.", conn);
 133
 134         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 135         sdi->status = SR_ST_INACTIVE;
 136         sdi->vendor = g_strdup(dmm->vendor);
 137         sdi->model = g_strdup(dmm->device);
 138         devc = g_malloc0(sizeof(struct dev_context));
 139         sdi->inst_type = SR_INST_SERIAL;
 140         sdi->conn = serial;
 141         sdi->priv = devc;
 142         sdi->driver = di;
 143         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 144         drvc->instances = g_slist_append(drvc->instances, sdi);
 145         devices = g_slist_append(devices, sdi);
 146
 147 scan_cleanup:
 148         serial_close(serial);
 149
 150         return devices;
 151 }
 152
 153 static GSList *dev_list(const struct sr_dev_driver *di)
 154 {
 155         return ((struct drv_context *)(di->context))->instances;
 156 }
 157
 158 static int cleanup(const struct sr_dev_driver *di)
 159 {
 160         return dev_clear(di);
 161 }
 162
 163 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 164                 const struct sr_channel_group *cg)
 165 {
 166         struct dev_context *devc;
 167
 168         (void)cg;
 169
 170         if (sdi->status != SR_ST_ACTIVE)
 171                 return SR_ERR_DEV_CLOSED;
 172
 173         if (!(devc = sdi->priv)) {
 174                 sr_err("sdi->priv was NULL.");
 175                 return SR_ERR_BUG;
 176         }
 177
 178         switch (key) {
 179         case SR_CONF_LIMIT_SAMPLES:
 180                 devc->limit_samples = g_variant_get_uint64(data);
 181                 break;
 182         case SR_CONF_LIMIT_MSEC:
 183                 devc->limit_msec = g_variant_get_uint64(data);
 184                 break;
 185         default:
 186                 return SR_ERR_NA;
 187         }
 188
 189         return SR_OK;
 190 }
 191
 192 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 193                 const struct sr_channel_group *cg)
 194 {
 195         (void)sdi;
 196         (void)cg;
 197
 198         switch (key) {
 199         case SR_CONF_SCAN_OPTIONS:
 200                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 201                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 202                 break;
 203         case SR_CONF_DEVICE_OPTIONS:
 204                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 205                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 206                 break;
 207         default:
 208                 return SR_ERR_NA;
 209         }
 210
 211         return SR_OK;
 212 }
 213
 214 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 215 {
 216         struct dev_context *devc;
 217         struct sr_serial_dev_inst *serial;
 218
 219         if (sdi->status != SR_ST_ACTIVE)
 220                 return SR_ERR_DEV_CLOSED;
 221
 222         devc = sdi->priv;
 223
 224         /*
 225          * Reset the number of samples to take. If we've already collected our
 226          * quota, but we start a new session, and don't reset this, we'll just
 227          * quit without acquiring any new samples.
 228          */
 229         devc->num_samples = 0;
 230         devc->starttime = g_get_monotonic_time();
 231
 232         std_session_send_df_header(sdi, LOG_PREFIX);
 233
 234         /* Poll every 50ms, or whenever some data comes in. */
 235         serial = sdi->conn;
 236         serial_source_add(sdi->session, serial, G_IO_IN, 50,
 237                       receive_data, (void *)sdi);
 238
 239         return SR_OK;
 240 }
 241
 242 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 243 {
 244         return std_serial_dev_acquisition_stop(sdi, sdi, std_serial_dev_close,
 245                         sdi->conn, LOG_PREFIX);
 246 }
 247
 248 #define DMM(ID, CHIPSET, VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, \
 249                         DELAY, REQUEST, VALID, PARSE, DETAILS) \
 250         &(struct dmm_info) { \
 251                 { \
 252                         .name = ID, \
 253                         .longname = VENDOR " " MODEL, \
 254                         .api_version = 1, \
 255                         .init = init, \
 256                         .cleanup = cleanup, \
 257                         .scan = scan, \
 258                         .dev_list = dev_list, \
 259                         .dev_clear = dev_clear, \
 260                         .config_get = NULL, \
 261                         .config_set = config_set, \
 262                         .config_list = config_list, \
 263                         .dev_open = std_serial_dev_open, \
 264                         .dev_close = std_serial_dev_close, \
 265                         .dev_acquisition_start = dev_acquisition_start, \
 266                         .dev_acquisition_stop = dev_acquisition_stop, \
 267                         .context = NULL, \
 268                 }, \
 269                 VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, DELAY, \
 270                 REQUEST, VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
 271         }
 272
 273 SR_PRIV const struct dmm_info *serial_dmm_drivers[] = {
 274         DMM(
 275                 "bbcgm-2010", metex14,
 276                 "BBC Goertz Metrawatt", "M2110", "1200/7n2", 1200,
 277                 BBCGM_M2110_PACKET_SIZE, 0, 0, NULL,
 278                 sr_m2110_packet_valid, sr_m2110_parse,
 279                 NULL
 280         ),
 281         DMM(
 282                 "digitek-dt4000zc", fs9721,
 283                 "Digitek", "DT4000ZC", "2400/8n1/dtr=1", 2400,
 284                 FS9721_PACKET_SIZE, 0, 0, NULL,
 285                 sr_fs9721_packet_valid, sr_fs9721_parse,
 286                 sr_fs9721_10_temp_c
 287         ),
 288         DMM(
 289                 "tekpower-tp4000ZC", fs9721,
 290                 "TekPower", "TP4000ZC", "2400/8n1/dtr=1", 2400,
 291                 FS9721_PACKET_SIZE, 0, 0, NULL,
 292                 sr_fs9721_packet_valid, sr_fs9721_parse,
 293                 sr_fs9721_10_temp_c
 294         ),
 295         DMM(
 296                 "metex-me31", metex14,
 297                 "Metex", "ME-31", "600/7n2/rts=0/dtr=1", 600,
 298                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 299                 sr_metex14_packet_valid, sr_metex14_parse,
 300                 NULL
 301         ),
 302         DMM(
 303                 "peaktech-3410", metex14,
 304                 "Peaktech", "3410", "600/7n2/rts=0/dtr=1", 600,
 305                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 306                 sr_metex14_packet_valid, sr_metex14_parse,
 307                 NULL
 308         ),
 309         DMM(
 310                 "mastech-mas345", metex14,
 311                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1", 600,
 312                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 313                 sr_metex14_packet_valid, sr_metex14_parse,
 314                 NULL
 315         ),
 316         DMM(
 317                 "mastech-ms8250b", fs9721,
 318                 "MASTECH", "MS8250B", "2400/8n1/rts=0/dtr=1",
 319                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 320                 sr_fs9721_packet_valid, sr_fs9721_parse,
 321                 NULL
 322         ),
 323         DMM(
 324                 "va-va18b", fs9721,
 325                 "V&A", "VA18B", "2400/8n1", 2400,
 326                 FS9721_PACKET_SIZE, 0, 0, NULL,
 327                 sr_fs9721_packet_valid, sr_fs9721_parse,
 328                 sr_fs9721_01_temp_c
 329         ),
 330         DMM(
 331                 "va-va40b", fs9721,
 332                 "V&A", "VA40B", "2400/8n1", 2400,
 333                 FS9721_PACKET_SIZE, 0, 0, NULL,
 334                 sr_fs9721_packet_valid, sr_fs9721_parse,
 335                 sr_fs9721_max_c_min
 336         ),
 337         DMM(
 338                 "metex-m3640d", metex14,
 339                 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1", 1200,
 340                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 341                 sr_metex14_packet_valid, sr_metex14_parse,
 342                 NULL
 343         ),
 344         DMM(
 345                 "metex-m4650cr", metex14,
 346                 "Metex", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 347                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 348                 sr_metex14_packet_valid, sr_metex14_parse,
 349                 NULL
 350         ),
 351         DMM(
 352                 "peaktech-4370", metex14,
 353                 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1", 1200,
 354                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 355                 sr_metex14_packet_valid, sr_metex14_parse,
 356                 NULL
 357         ),
 358         DMM(
 359                 "pce-pce-dm32", fs9721,
 360                 "PCE", "PCE-DM32", "2400/8n1", 2400,
 361                 FS9721_PACKET_SIZE, 0, 0, NULL,
 362                 sr_fs9721_packet_valid, sr_fs9721_parse,
 363                 sr_fs9721_01_10_temp_f_c
 364         ),
 365         DMM(
 366                 "radioshack-22-168", metex14,
 367                 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1", 1200,
 368                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 369                 sr_metex14_packet_valid, sr_metex14_parse,
 370                 NULL
 371         ),
 372         DMM(
 373                 "radioshack-22-805", metex14,
 374                 "RadioShack", "22-805", "600/7n2/rts=0/dtr=1", 600,
 375                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 376                 sr_metex14_packet_valid, sr_metex14_parse,
 377                 NULL
 378         ),
 379         DMM(
 380                 "radioshack-22-812", rs9lcd,
 381                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1", 4800,
 382                 RS9LCD_PACKET_SIZE, 0, 0, NULL,
 383                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 384                 NULL
 385         ),
 386         DMM(
 387                 "tecpel-dmm-8061-ser", fs9721,
 388                 "Tecpel", "DMM-8061 (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         DMM(
 394                 "voltcraft-m3650cr", metex14,
 395                 "Voltcraft", "M-3650CR", "1200/7n2/rts=0/dtr=1", 1200,
 396                 METEX14_PACKET_SIZE, 150, 20, sr_metex14_packet_request,
 397                 sr_metex14_packet_valid, sr_metex14_parse,
 398                 NULL
 399         ),
 400         DMM(
 401                 "voltcraft-m3650d", metex14,
 402                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1", 1200,
 403                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 404                 sr_metex14_packet_valid, sr_metex14_parse,
 405                 NULL
 406         ),
 407         DMM(
 408                 "voltcraft-m4650cr", metex14,
 409                 "Voltcraft", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 410                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 411                 sr_metex14_packet_valid, sr_metex14_parse,
 412                 NULL
 413         ),
 414         DMM(
 415                 "voltcraft-me42", metex14,
 416                 "Voltcraft", "ME-42", "600/7n2/rts=0/dtr=1", 600,
 417                 METEX14_PACKET_SIZE, 250, 60, sr_metex14_packet_request,
 418                 sr_metex14_packet_valid, sr_metex14_parse,
 419                 NULL
 420         ),
 421         DMM(
 422                 "voltcraft-vc820-ser", fs9721,
 423                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 424                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 425                 sr_fs9721_packet_valid, sr_fs9721_parse,
 426                 NULL
 427         ),
 428         DMM(
 429                 /*
 430                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 431                  * the FS9922 protocol. Instead, it only sets the user-defined
 432                  * bit "z1" to indicate "diode mode" and "voltage".
 433                  */
 434                 "voltcraft-vc830-ser", fs9922,
 435                 "Voltcraft", "VC-830 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 436                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 437                 sr_fs9922_packet_valid, sr_fs9922_parse,
 438                 &sr_fs9922_z1_diode
 439         ),
 440         DMM(
 441                 "voltcraft-vc840-ser", fs9721,
 442                 "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 443                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 444                 sr_fs9721_packet_valid, sr_fs9721_parse,
 445                 sr_fs9721_00_temp_c
 446         ),
 447         DMM(
 448                 "voltcraft-vc870-ser", vc870,
 449                 "Voltcraft", "VC-870 (UT-D02 cable)", "9600/8n1/rts=0/dtr=1",
 450                 9600, VC870_PACKET_SIZE, 0, 0, NULL,
 451                 sr_vc870_packet_valid, sr_vc870_parse, NULL
 452         ),
 453         DMM(
 454                 "voltcraft-vc920-ser", ut71x,
 455                 "Voltcraft", "VC-920 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 456                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 457                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 458         ),
 459         DMM(
 460                 "voltcraft-vc940-ser", ut71x,
 461                 "Voltcraft", "VC-940 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 462                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 463                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 464         ),
 465         DMM(
 466                 "voltcraft-vc960-ser", ut71x,
 467                 "Voltcraft", "VC-960 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 468                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 469                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 470         ),
 471         DMM(
 472                 "uni-t-ut60a-ser", fs9721,
 473                 "UNI-T", "UT60A (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 474                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 475                 sr_fs9721_packet_valid, sr_fs9721_parse,
 476                 NULL
 477         ),
 478         DMM(
 479                 "uni-t-ut60e-ser", fs9721,
 480                 "UNI-T", "UT60E (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 481                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 482                 sr_fs9721_packet_valid, sr_fs9721_parse,
 483                 sr_fs9721_00_temp_c
 484         ),
 485         DMM(
 486                 /* Note: ES51986 baudrate is actually 19230! */
 487                 "uni-t-ut60g-ser", es519xx,
 488                 "UNI-T", "UT60G (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 489                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 490                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 491                 NULL
 492         ),
 493         DMM(
 494                 "uni-t-ut61b-ser", fs9922,
 495                 "UNI-T", "UT61B (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 496                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 497                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 498         ),
 499         DMM(
 500                 "uni-t-ut61c-ser", fs9922,
 501                 "UNI-T", "UT61C (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 502                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 503                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 504         ),
 505         DMM(
 506                 "uni-t-ut61d-ser", fs9922,
 507                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 508                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 509                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 510         ),
 511         DMM(
 512                 "uni-t-ut61e-ser", es519xx,
 513                 /* Note: ES51922 baudrate is actually 19230! */
 514                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 515                 19200, ES519XX_14B_PACKET_SIZE, 0, 0, NULL,
 516                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 517                 NULL
 518         ),
 519         DMM(
 520                 "uni-t-ut71a-ser", ut71x,
 521                 "UNI-T", "UT71A (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                 "uni-t-ut71b-ser", ut71x,
 527                 "UNI-T", "UT71B (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                 "uni-t-ut71c-ser", ut71x,
 533                 "UNI-T", "UT71C (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-ut71d-ser", ut71x,
 539                 "UNI-T", "UT71D (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-ut71e-ser", ut71x,
 545                 "UNI-T", "UT71E (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                 "iso-tech-idm103n", es519xx,
 551                 "ISO-TECH", "IDM103N", "2400/7o1/rts=0/dtr=1",
 552                 2400, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 553                 sr_es519xx_2400_11b_packet_valid, sr_es519xx_2400_11b_parse,
 554                 NULL
 555         ),
 556         DMM(
 557                 "tenma-72-7730-ser", ut71x,
 558                 "Tenma", "72-7730 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 559                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 560                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 561         ),
 562         DMM(
 563                 "tenma-72-7732-ser", ut71x,
 564                 "Tenma", "72-7732 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 565                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 566                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 567         ),
 568         DMM(
 569                 "tenma-72-9380a-ser", ut71x,
 570                 "Tenma", "72-9380A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 571                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 572                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 573         ),
 574         DMM(
 575                 "tenma-72-7745-ser", fs9721,
 576                 "Tenma", "72-7745 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 577                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 578                 sr_fs9721_packet_valid, sr_fs9721_parse,
 579                 sr_fs9721_00_temp_c
 580         ),
 581         DMM(
 582                 "tenma-72-7750-ser", es519xx,
 583                 /* Note: ES51986 baudrate is actually 19230! */
 584                 "Tenma", "72-7750 (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 585                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 586                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 587                 NULL
 588         ),
 589         DMM(
 590                 "brymen-bm25x", bm25x,
 591                 "Brymen", "BM25x", "9600/8n1/rts=1/dtr=1",
 592                 9600, BRYMEN_BM25X_PACKET_SIZE, 0, 0, NULL,
 593                 sr_brymen_bm25x_packet_valid, sr_brymen_bm25x_parse,
 594                 NULL
 595         ),
 596         DMM(
 597                 "velleman-dvm4100", dtm0660,
 598                 "Velleman", "DVM4100", "2400/8n1/rts=0/dtr=1",
 599                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 600                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 601         ),
 602         DMM(
 603                 "peaktech-3415", dtm0660,
 604                 "Peaktech", "3415", "2400/8n1/rts=0/dtr=1",
 605                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 606                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 607         ),
 608         NULL
 609 };