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 <sys/types.h>
  23 #include <sys/stat.h>
  24 #include <fcntl.h>
  25 #include <string.h>
  26 #include <errno.h>
  27 #include <glib.h>
  28 #include "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 = (struct dmm_info *) di;
  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         conn = serialcomm = NULL;
  69         for (l = options; l; l = l->next) {
  70                 src = l->data;
  71                 switch (src->key) {
  72                 case SR_CONF_CONN:
  73                         conn = g_variant_get_string(src->data, NULL);
  74                         break;
  75                 case SR_CONF_SERIALCOMM:
  76                         serialcomm = g_variant_get_string(src->data, NULL);
  77                         break;
  78                 }
  79         }
  80         if (!conn)
  81                 return NULL;
  82
  83         if (!serialcomm)
  84                 serialcomm = dmm->conn;
  85
  86         serial = sr_serial_dev_inst_new(conn, serialcomm);
  87
  88         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
  89                 return NULL;
  90
  91         sr_info("Probing serial port %s.", conn);
  92
  93         drvc = di->priv;
  94         devices = NULL;
  95         serial_flush(serial);
  96
  97         /* Request a packet if the DMM requires this. */
  98         if (dmm->packet_request) {
  99                 if ((ret = dmm->packet_request(serial)) < 0) {
 100                         sr_err("Failed to request packet: %d.", ret);
 101                         return FALSE;
 102                 }
 103         }
 104
 105         /*
 106          * There's no way to get an ID from the multimeter. It just sends data
 107          * periodically (or upon request), so the best we can do is check if
 108          * the packets match the expected format.
 109          */
 110
 111         /* Let's get a bit of data and see if we can find a packet. */
 112         len = sizeof(buf);
 113         ret = serial_stream_detect(serial, buf, &len, dmm->packet_size,
 114                                    dmm->packet_valid, 3000,
 115                                    dmm->baudrate);
 116         if (ret != SR_OK)
 117                 goto scan_cleanup;
 118
 119         /*
 120          * If we dropped more than two packets worth of data, something is
 121          * wrong. We shouldn't quit however, since the dropped bytes might be
 122          * just zeroes at the beginning of the stream. Those can occur as a
 123          * combination of the nonstandard cable that ships with some devices
 124          * and the serial port or USB to serial adapter.
 125          */
 126         dropped = len - dmm->packet_size;
 127         if (dropped > 2 * dmm->packet_size)
 128                 sr_warn("Had to drop too much data.");
 129
 130         sr_info("Found device on port %s.", conn);
 131
 132         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 133         sdi->status = SR_ST_INACTIVE;
 134         sdi->vendor = g_strdup(dmm->vendor);
 135         sdi->model = g_strdup(dmm->device);
 136         devc = g_malloc0(sizeof(struct dev_context));
 137         sdi->inst_type = SR_INST_SERIAL;
 138         sdi->conn = serial;
 139         sdi->priv = devc;
 140         sdi->driver = di;
 141         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 142         drvc->instances = g_slist_append(drvc->instances, sdi);
 143         devices = g_slist_append(devices, sdi);
 144
 145 scan_cleanup:
 146         serial_close(serial);
 147
 148         return devices;
 149 }
 150
 151 static GSList *dev_list(const struct sr_dev_driver *di)
 152 {
 153         return ((struct drv_context *)(di->priv))->instances;
 154 }
 155
 156 static int cleanup(const struct sr_dev_driver *di)
 157 {
 158         return dev_clear(di);
 159 }
 160
 161 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 162                 const struct sr_channel_group *cg)
 163 {
 164         struct dev_context *devc;
 165
 166         (void)cg;
 167
 168         if (sdi->status != SR_ST_ACTIVE)
 169                 return SR_ERR_DEV_CLOSED;
 170
 171         if (!(devc = sdi->priv)) {
 172                 sr_err("sdi->priv was NULL.");
 173                 return SR_ERR_BUG;
 174         }
 175
 176         switch (key) {
 177         case SR_CONF_LIMIT_SAMPLES:
 178                 devc->limit_samples = g_variant_get_uint64(data);
 179                 sr_dbg("Setting sample limit to %" PRIu64 ".",
 180                        devc->limit_samples);
 181                 break;
 182         case SR_CONF_LIMIT_MSEC:
 183                 devc->limit_msec = g_variant_get_uint64(data);
 184                 sr_dbg("Setting time limit to %" PRIu64 "ms.",
 185                        devc->limit_msec);
 186                 break;
 187         default:
 188                 return SR_ERR_NA;
 189         }
 190
 191         return SR_OK;
 192 }
 193
 194 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 195                 const struct sr_channel_group *cg)
 196 {
 197         (void)sdi;
 198         (void)cg;
 199
 200         switch (key) {
 201         case SR_CONF_SCAN_OPTIONS:
 202                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 203                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 204                 break;
 205         case SR_CONF_DEVICE_OPTIONS:
 206                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 207                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 208                 break;
 209         default:
 210                 return SR_ERR_NA;
 211         }
 212
 213         return SR_OK;
 214 }
 215
 216 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 217 {
 218         struct dev_context *devc;
 219         struct sr_serial_dev_inst *serial;
 220
 221         if (sdi->status != SR_ST_ACTIVE)
 222                 return SR_ERR_DEV_CLOSED;
 223
 224         if (!(devc = sdi->priv)) {
 225                 sr_err("sdi->priv was NULL.");
 226                 return SR_ERR_BUG;
 227         }
 228
 229         devc->cb_data = cb_data;
 230
 231         /*
 232          * Reset the number of samples to take. If we've already collected our
 233          * quota, but we start a new session, and don't reset this, we'll just
 234          * quit without acquiring any new samples.
 235          */
 236         devc->num_samples = 0;
 237         devc->starttime = g_get_monotonic_time();
 238
 239         /* Send header packet to the session bus. */
 240         std_session_send_df_header(cb_data, LOG_PREFIX);
 241
 242         /* Poll every 50ms, or whenever some data comes in. */
 243         serial = sdi->conn;
 244         serial_source_add(sdi->session, serial, G_IO_IN, 50,
 245                       receive_data, (void *)sdi);
 246
 247         return SR_OK;
 248 }
 249
 250 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 251 {
 252         return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
 253                         sdi->conn, LOG_PREFIX);
 254 }
 255
 256 #define DMM(ID, CHIPSET, VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, \
 257                         DELAY, REQUEST, VALID, PARSE, DETAILS) \
 258         &(struct dmm_info) { \
 259                 { \
 260                         .name = ID, \
 261                         .longname = VENDOR " " MODEL, \
 262                         .api_version = 1, \
 263                         .init = init, \
 264                         .cleanup = cleanup, \
 265                         .scan = scan, \
 266                         .dev_list = dev_list, \
 267                         .dev_clear = dev_clear, \
 268                         .config_get = NULL, \
 269                         .config_set = config_set, \
 270                         .config_list = config_list, \
 271                         .dev_open = std_serial_dev_open, \
 272                         .dev_close = std_serial_dev_close, \
 273                         .dev_acquisition_start = dev_acquisition_start, \
 274                         .dev_acquisition_stop = dev_acquisition_stop, \
 275                         .priv = NULL, \
 276                 }, \
 277                 VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, DELAY, \
 278                 REQUEST, VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
 279         }
 280
 281 SR_PRIV struct dmm_info *serial_dmm_drivers[] = {
 282         DMM(
 283                 "bbcgm-2010", metex14,
 284                 "BBC Goertz Metrawatt", "M2110", "1200/7n2", 1200,
 285                 BBCGM_M2110_PACKET_SIZE, 0, 0, NULL,
 286                 sr_m2110_packet_valid, sr_m2110_parse,
 287                 NULL
 288         ),
 289         DMM(
 290                 "digitek-dt4000zc", fs9721,
 291                 "Digitek", "DT4000ZC", "2400/8n1/dtr=1", 2400,
 292                 FS9721_PACKET_SIZE, 0, 0, NULL,
 293                 sr_fs9721_packet_valid, sr_fs9721_parse,
 294                 sr_fs9721_10_temp_c
 295         ),
 296         DMM(
 297                 "tekpower-tp4000ZC", fs9721,
 298                 "TekPower", "TP4000ZC", "2400/8n1/dtr=1", 2400,
 299                 FS9721_PACKET_SIZE, 0, 0, NULL,
 300                 sr_fs9721_packet_valid, sr_fs9721_parse,
 301                 sr_fs9721_10_temp_c
 302         ),
 303         DMM(
 304                 "metex-me31", metex14,
 305                 "Metex", "ME-31", "600/7n2/rts=0/dtr=1", 600,
 306                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 307                 sr_metex14_packet_valid, sr_metex14_parse,
 308                 NULL
 309         ),
 310         DMM(
 311                 "peaktech-3410", metex14,
 312                 "Peaktech", "3410", "600/7n2/rts=0/dtr=1", 600,
 313                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 314                 sr_metex14_packet_valid, sr_metex14_parse,
 315                 NULL
 316         ),
 317         DMM(
 318                 "mastech-mas345", metex14,
 319                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1", 600,
 320                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 321                 sr_metex14_packet_valid, sr_metex14_parse,
 322                 NULL
 323         ),
 324         DMM(
 325                 "mastech-ms8250b", fs9721,
 326                 "MASTECH", "MS8250B", "2400/8n1/rts=0/dtr=1",
 327                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 328                 sr_fs9721_packet_valid, sr_fs9721_parse,
 329                 NULL
 330         ),
 331         DMM(
 332                 "va-va18b", fs9721,
 333                 "V&A", "VA18B", "2400/8n1", 2400,
 334                 FS9721_PACKET_SIZE, 0, 0, NULL,
 335                 sr_fs9721_packet_valid, sr_fs9721_parse,
 336                 sr_fs9721_01_temp_c
 337         ),
 338         DMM(
 339                 "va-va40b", fs9721,
 340                 "V&A", "VA40B", "2400/8n1", 2400,
 341                 FS9721_PACKET_SIZE, 0, 0, NULL,
 342                 sr_fs9721_packet_valid, sr_fs9721_parse,
 343                 sr_fs9721_max_c_min
 344         ),
 345         DMM(
 346                 "metex-m3640d", metex14,
 347                 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1", 1200,
 348                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 349                 sr_metex14_packet_valid, sr_metex14_parse,
 350                 NULL
 351         ),
 352         DMM(
 353                 "metex-m4650cr", metex14,
 354                 "Metex", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 355                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 356                 sr_metex14_packet_valid, sr_metex14_parse,
 357                 NULL
 358         ),
 359         DMM(
 360                 "peaktech-4370", metex14,
 361                 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1", 1200,
 362                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 363                 sr_metex14_packet_valid, sr_metex14_parse,
 364                 NULL
 365         ),
 366         DMM(
 367                 "pce-pce-dm32", fs9721,
 368                 "PCE", "PCE-DM32", "2400/8n1", 2400,
 369                 FS9721_PACKET_SIZE, 0, 0, NULL,
 370                 sr_fs9721_packet_valid, sr_fs9721_parse,
 371                 sr_fs9721_01_10_temp_f_c
 372         ),
 373         DMM(
 374                 "radioshack-22-168", metex14,
 375                 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1", 1200,
 376                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 377                 sr_metex14_packet_valid, sr_metex14_parse,
 378                 NULL
 379         ),
 380         DMM(
 381                 "radioshack-22-805", metex14,
 382                 "RadioShack", "22-805", "600/7n2/rts=0/dtr=1", 600,
 383                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 384                 sr_metex14_packet_valid, sr_metex14_parse,
 385                 NULL
 386         ),
 387         DMM(
 388                 "radioshack-22-812", rs9lcd,
 389                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1", 4800,
 390                 RS9LCD_PACKET_SIZE, 0, 0, NULL,
 391                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 392                 NULL
 393         ),
 394         DMM(
 395                 "tecpel-dmm-8061-ser", fs9721,
 396                 "Tecpel", "DMM-8061 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 397                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 398                 sr_fs9721_packet_valid, sr_fs9721_parse,
 399                 sr_fs9721_00_temp_c
 400         ),
 401         DMM(
 402                 "voltcraft-m3650cr", metex14,
 403                 "Voltcraft", "M-3650CR", "1200/7n2/rts=0/dtr=1", 1200,
 404                 METEX14_PACKET_SIZE, 150, 20, sr_metex14_packet_request,
 405                 sr_metex14_packet_valid, sr_metex14_parse,
 406                 NULL
 407         ),
 408         DMM(
 409                 "voltcraft-m3650d", metex14,
 410                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1", 1200,
 411                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 412                 sr_metex14_packet_valid, sr_metex14_parse,
 413                 NULL
 414         ),
 415         DMM(
 416                 "voltcraft-m4650cr", metex14,
 417                 "Voltcraft", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 418                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 419                 sr_metex14_packet_valid, sr_metex14_parse,
 420                 NULL
 421         ),
 422         DMM(
 423                 "voltcraft-me42", metex14,
 424                 "Voltcraft", "ME-42", "600/7n2/rts=0/dtr=1", 600,
 425                 METEX14_PACKET_SIZE, 250, 60, sr_metex14_packet_request,
 426                 sr_metex14_packet_valid, sr_metex14_parse,
 427                 NULL
 428         ),
 429         DMM(
 430                 "voltcraft-vc820-ser", fs9721,
 431                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 432                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 433                 sr_fs9721_packet_valid, sr_fs9721_parse,
 434                 NULL
 435         ),
 436         DMM(
 437                 /*
 438                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 439                  * the FS9922 protocol. Instead, it only sets the user-defined
 440                  * bit "z1" to indicate "diode mode" and "voltage".
 441                  */
 442                 "voltcraft-vc830-ser", fs9922,
 443                 "Voltcraft", "VC-830 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 444                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 445                 sr_fs9922_packet_valid, sr_fs9922_parse,
 446                 &sr_fs9922_z1_diode
 447         ),
 448         DMM(
 449                 "voltcraft-vc840-ser", fs9721,
 450                 "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 451                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 452                 sr_fs9721_packet_valid, sr_fs9721_parse,
 453                 sr_fs9721_00_temp_c
 454         ),
 455         DMM(
 456                 "voltcraft-vc870-ser", vc870,
 457                 "Voltcraft", "VC-870 (UT-D02 cable)", "9600/8n1/rts=0/dtr=1",
 458                 9600, VC870_PACKET_SIZE, 0, 0, NULL,
 459                 sr_vc870_packet_valid, sr_vc870_parse, NULL
 460         ),
 461         DMM(
 462                 "voltcraft-vc920-ser", ut71x,
 463                 "Voltcraft", "VC-920 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 464                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 465                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 466         ),
 467         DMM(
 468                 "voltcraft-vc940-ser", ut71x,
 469                 "Voltcraft", "VC-940 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 470                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 471                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 472         ),
 473         DMM(
 474                 "voltcraft-vc960-ser", ut71x,
 475                 "Voltcraft", "VC-960 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 476                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 477                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 478         ),
 479         DMM(
 480                 "uni-t-ut60a-ser", fs9721,
 481                 "UNI-T", "UT60A (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 482                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 483                 sr_fs9721_packet_valid, sr_fs9721_parse,
 484                 NULL
 485         ),
 486         DMM(
 487                 "uni-t-ut60e-ser", fs9721,
 488                 "UNI-T", "UT60E (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 489                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 490                 sr_fs9721_packet_valid, sr_fs9721_parse,
 491                 sr_fs9721_00_temp_c
 492         ),
 493         DMM(
 494                 /* Note: ES51986 baudrate is actually 19230! */
 495                 "uni-t-ut60g-ser", es519xx,
 496                 "UNI-T", "UT60G (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 497                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 498                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 499                 NULL
 500         ),
 501         DMM(
 502                 "uni-t-ut61b-ser", fs9922,
 503                 "UNI-T", "UT61B (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 504                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 505                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 506         ),
 507         DMM(
 508                 "uni-t-ut61c-ser", fs9922,
 509                 "UNI-T", "UT61C (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 510                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 511                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 512         ),
 513         DMM(
 514                 "uni-t-ut61d-ser", fs9922,
 515                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 516                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 517                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 518         ),
 519         DMM(
 520                 "uni-t-ut61e-ser", es519xx,
 521                 /* Note: ES51922 baudrate is actually 19230! */
 522                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 523                 19200, ES519XX_14B_PACKET_SIZE, 0, 0, NULL,
 524                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 525                 NULL
 526         ),
 527         DMM(
 528                 "uni-t-ut71a-ser", ut71x,
 529                 "UNI-T", "UT71A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 530                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 531                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 532         ),
 533         DMM(
 534                 "uni-t-ut71b-ser", ut71x,
 535                 "UNI-T", "UT71B (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 536                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 537                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 538         ),
 539         DMM(
 540                 "uni-t-ut71c-ser", ut71x,
 541                 "UNI-T", "UT71C (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 542                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 543                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 544         ),
 545         DMM(
 546                 "uni-t-ut71d-ser", ut71x,
 547                 "UNI-T", "UT71D (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 548                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 549                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 550         ),
 551         DMM(
 552                 "uni-t-ut71e-ser", ut71x,
 553                 "UNI-T", "UT71E (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 554                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 555                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 556         ),
 557         DMM(
 558                 "iso-tech-idm103n", es519xx,
 559                 "ISO-TECH", "IDM103N", "2400/7o1/rts=0/dtr=1",
 560                 2400, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 561                 sr_es519xx_2400_11b_packet_valid, sr_es519xx_2400_11b_parse,
 562                 NULL
 563         ),
 564         DMM(
 565                 "tenma-72-7745-ser", fs9721,
 566                 "Tenma", "72-7745 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 567                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 568                 sr_fs9721_packet_valid, sr_fs9721_parse,
 569                 sr_fs9721_00_temp_c
 570         ),
 571         DMM(
 572                 "tenma-72-7750-ser", es519xx,
 573                 /* Note: ES51986 baudrate is actually 19230! */
 574                 "Tenma", "72-7750 (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 575                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 576                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 577                 NULL
 578         ),
 579         DMM(
 580                 "brymen-bm25x", bm25x,
 581                 "Brymen", "BM25x", "9600/8n1/rts=1/dtr=1",
 582                 9600, BRYMEN_BM25X_PACKET_SIZE, 0, 0, NULL,
 583                 sr_brymen_bm25x_packet_valid, sr_brymen_bm25x_parse,
 584                 NULL
 585         ),
 586         NULL
 587 };