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;
  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->priv;
  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->priv))->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                 sr_dbg("Setting sample limit to %" PRIu64 ".",
 182                        devc->limit_samples);
 183                 break;
 184         case SR_CONF_LIMIT_MSEC:
 185                 devc->limit_msec = g_variant_get_uint64(data);
 186                 sr_dbg("Setting time limit to %" PRIu64 "ms.",
 187                        devc->limit_msec);
 188                 break;
 189         default:
 190                 return SR_ERR_NA;
 191         }
 192
 193         return SR_OK;
 194 }
 195
 196 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 197                 const struct sr_channel_group *cg)
 198 {
 199         (void)sdi;
 200         (void)cg;
 201
 202         switch (key) {
 203         case SR_CONF_SCAN_OPTIONS:
 204                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 205                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 206                 break;
 207         case SR_CONF_DEVICE_OPTIONS:
 208                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 209                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 210                 break;
 211         default:
 212                 return SR_ERR_NA;
 213         }
 214
 215         return SR_OK;
 216 }
 217
 218 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 219 {
 220         struct dev_context *devc;
 221         struct sr_serial_dev_inst *serial;
 222
 223         if (sdi->status != SR_ST_ACTIVE)
 224                 return SR_ERR_DEV_CLOSED;
 225
 226         if (!(devc = sdi->priv)) {
 227                 sr_err("sdi->priv was NULL.");
 228                 return SR_ERR_BUG;
 229         }
 230
 231         devc->cb_data = cb_data;
 232
 233         /*
 234          * Reset the number of samples to take. If we've already collected our
 235          * quota, but we start a new session, and don't reset this, we'll just
 236          * quit without acquiring any new samples.
 237          */
 238         devc->num_samples = 0;
 239         devc->starttime = g_get_monotonic_time();
 240
 241         /* Send header packet to the session bus. */
 242         std_session_send_df_header(cb_data, LOG_PREFIX);
 243
 244         /* Poll every 50ms, or whenever some data comes in. */
 245         serial = sdi->conn;
 246         serial_source_add(sdi->session, serial, G_IO_IN, 50,
 247                       receive_data, (void *)sdi);
 248
 249         return SR_OK;
 250 }
 251
 252 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 253 {
 254         return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
 255                         sdi->conn, LOG_PREFIX);
 256 }
 257
 258 #define DMM(ID, CHIPSET, VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, \
 259                         DELAY, REQUEST, VALID, PARSE, DETAILS) \
 260         &(struct dmm_info) { \
 261                 { \
 262                         .name = ID, \
 263                         .longname = VENDOR " " MODEL, \
 264                         .api_version = 1, \
 265                         .init = init, \
 266                         .cleanup = cleanup, \
 267                         .scan = scan, \
 268                         .dev_list = dev_list, \
 269                         .dev_clear = dev_clear, \
 270                         .config_get = NULL, \
 271                         .config_set = config_set, \
 272                         .config_list = config_list, \
 273                         .dev_open = std_serial_dev_open, \
 274                         .dev_close = std_serial_dev_close, \
 275                         .dev_acquisition_start = dev_acquisition_start, \
 276                         .dev_acquisition_stop = dev_acquisition_stop, \
 277                         .priv = NULL, \
 278                 }, \
 279                 VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, DELAY, \
 280                 REQUEST, VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
 281         }
 282
 283 SR_PRIV const struct dmm_info *serial_dmm_drivers[] = {
 284         DMM(
 285                 "bbcgm-2010", metex14,
 286                 "BBC Goertz Metrawatt", "M2110", "1200/7n2", 1200,
 287                 BBCGM_M2110_PACKET_SIZE, 0, 0, NULL,
 288                 sr_m2110_packet_valid, sr_m2110_parse,
 289                 NULL
 290         ),
 291         DMM(
 292                 "digitek-dt4000zc", fs9721,
 293                 "Digitek", "DT4000ZC", "2400/8n1/dtr=1", 2400,
 294                 FS9721_PACKET_SIZE, 0, 0, NULL,
 295                 sr_fs9721_packet_valid, sr_fs9721_parse,
 296                 sr_fs9721_10_temp_c
 297         ),
 298         DMM(
 299                 "tekpower-tp4000ZC", fs9721,
 300                 "TekPower", "TP4000ZC", "2400/8n1/dtr=1", 2400,
 301                 FS9721_PACKET_SIZE, 0, 0, NULL,
 302                 sr_fs9721_packet_valid, sr_fs9721_parse,
 303                 sr_fs9721_10_temp_c
 304         ),
 305         DMM(
 306                 "metex-me31", metex14,
 307                 "Metex", "ME-31", "600/7n2/rts=0/dtr=1", 600,
 308                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 309                 sr_metex14_packet_valid, sr_metex14_parse,
 310                 NULL
 311         ),
 312         DMM(
 313                 "peaktech-3410", metex14,
 314                 "Peaktech", "3410", "600/7n2/rts=0/dtr=1", 600,
 315                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 316                 sr_metex14_packet_valid, sr_metex14_parse,
 317                 NULL
 318         ),
 319         DMM(
 320                 "mastech-mas345", metex14,
 321                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1", 600,
 322                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 323                 sr_metex14_packet_valid, sr_metex14_parse,
 324                 NULL
 325         ),
 326         DMM(
 327                 "mastech-ms8250b", fs9721,
 328                 "MASTECH", "MS8250B", "2400/8n1/rts=0/dtr=1",
 329                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 330                 sr_fs9721_packet_valid, sr_fs9721_parse,
 331                 NULL
 332         ),
 333         DMM(
 334                 "va-va18b", fs9721,
 335                 "V&A", "VA18B", "2400/8n1", 2400,
 336                 FS9721_PACKET_SIZE, 0, 0, NULL,
 337                 sr_fs9721_packet_valid, sr_fs9721_parse,
 338                 sr_fs9721_01_temp_c
 339         ),
 340         DMM(
 341                 "va-va40b", fs9721,
 342                 "V&A", "VA40B", "2400/8n1", 2400,
 343                 FS9721_PACKET_SIZE, 0, 0, NULL,
 344                 sr_fs9721_packet_valid, sr_fs9721_parse,
 345                 sr_fs9721_max_c_min
 346         ),
 347         DMM(
 348                 "metex-m3640d", metex14,
 349                 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1", 1200,
 350                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 351                 sr_metex14_packet_valid, sr_metex14_parse,
 352                 NULL
 353         ),
 354         DMM(
 355                 "metex-m4650cr", metex14,
 356                 "Metex", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 357                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 358                 sr_metex14_packet_valid, sr_metex14_parse,
 359                 NULL
 360         ),
 361         DMM(
 362                 "peaktech-4370", metex14,
 363                 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1", 1200,
 364                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 365                 sr_metex14_packet_valid, sr_metex14_parse,
 366                 NULL
 367         ),
 368         DMM(
 369                 "pce-pce-dm32", fs9721,
 370                 "PCE", "PCE-DM32", "2400/8n1", 2400,
 371                 FS9721_PACKET_SIZE, 0, 0, NULL,
 372                 sr_fs9721_packet_valid, sr_fs9721_parse,
 373                 sr_fs9721_01_10_temp_f_c
 374         ),
 375         DMM(
 376                 "radioshack-22-168", metex14,
 377                 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1", 1200,
 378                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 379                 sr_metex14_packet_valid, sr_metex14_parse,
 380                 NULL
 381         ),
 382         DMM(
 383                 "radioshack-22-805", metex14,
 384                 "RadioShack", "22-805", "600/7n2/rts=0/dtr=1", 600,
 385                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 386                 sr_metex14_packet_valid, sr_metex14_parse,
 387                 NULL
 388         ),
 389         DMM(
 390                 "radioshack-22-812", rs9lcd,
 391                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1", 4800,
 392                 RS9LCD_PACKET_SIZE, 0, 0, NULL,
 393                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 394                 NULL
 395         ),
 396         DMM(
 397                 "tecpel-dmm-8061-ser", fs9721,
 398                 "Tecpel", "DMM-8061 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 399                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 400                 sr_fs9721_packet_valid, sr_fs9721_parse,
 401                 sr_fs9721_00_temp_c
 402         ),
 403         DMM(
 404                 "voltcraft-m3650cr", metex14,
 405                 "Voltcraft", "M-3650CR", "1200/7n2/rts=0/dtr=1", 1200,
 406                 METEX14_PACKET_SIZE, 150, 20, sr_metex14_packet_request,
 407                 sr_metex14_packet_valid, sr_metex14_parse,
 408                 NULL
 409         ),
 410         DMM(
 411                 "voltcraft-m3650d", metex14,
 412                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1", 1200,
 413                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 414                 sr_metex14_packet_valid, sr_metex14_parse,
 415                 NULL
 416         ),
 417         DMM(
 418                 "voltcraft-m4650cr", metex14,
 419                 "Voltcraft", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 420                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 421                 sr_metex14_packet_valid, sr_metex14_parse,
 422                 NULL
 423         ),
 424         DMM(
 425                 "voltcraft-me42", metex14,
 426                 "Voltcraft", "ME-42", "600/7n2/rts=0/dtr=1", 600,
 427                 METEX14_PACKET_SIZE, 250, 60, sr_metex14_packet_request,
 428                 sr_metex14_packet_valid, sr_metex14_parse,
 429                 NULL
 430         ),
 431         DMM(
 432                 "voltcraft-vc820-ser", fs9721,
 433                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 434                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 435                 sr_fs9721_packet_valid, sr_fs9721_parse,
 436                 NULL
 437         ),
 438         DMM(
 439                 /*
 440                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 441                  * the FS9922 protocol. Instead, it only sets the user-defined
 442                  * bit "z1" to indicate "diode mode" and "voltage".
 443                  */
 444                 "voltcraft-vc830-ser", fs9922,
 445                 "Voltcraft", "VC-830 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 446                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 447                 sr_fs9922_packet_valid, sr_fs9922_parse,
 448                 &sr_fs9922_z1_diode
 449         ),
 450         DMM(
 451                 "voltcraft-vc840-ser", fs9721,
 452                 "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 453                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 454                 sr_fs9721_packet_valid, sr_fs9721_parse,
 455                 sr_fs9721_00_temp_c
 456         ),
 457         DMM(
 458                 "voltcraft-vc870-ser", vc870,
 459                 "Voltcraft", "VC-870 (UT-D02 cable)", "9600/8n1/rts=0/dtr=1",
 460                 9600, VC870_PACKET_SIZE, 0, 0, NULL,
 461                 sr_vc870_packet_valid, sr_vc870_parse, NULL
 462         ),
 463         DMM(
 464                 "voltcraft-vc920-ser", ut71x,
 465                 "Voltcraft", "VC-920 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 466                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 467                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 468         ),
 469         DMM(
 470                 "voltcraft-vc940-ser", ut71x,
 471                 "Voltcraft", "VC-940 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 472                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 473                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 474         ),
 475         DMM(
 476                 "voltcraft-vc960-ser", ut71x,
 477                 "Voltcraft", "VC-960 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 478                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 479                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 480         ),
 481         DMM(
 482                 "uni-t-ut60a-ser", fs9721,
 483                 "UNI-T", "UT60A (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 484                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 485                 sr_fs9721_packet_valid, sr_fs9721_parse,
 486                 NULL
 487         ),
 488         DMM(
 489                 "uni-t-ut60e-ser", fs9721,
 490                 "UNI-T", "UT60E (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 491                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 492                 sr_fs9721_packet_valid, sr_fs9721_parse,
 493                 sr_fs9721_00_temp_c
 494         ),
 495         DMM(
 496                 /* Note: ES51986 baudrate is actually 19230! */
 497                 "uni-t-ut60g-ser", es519xx,
 498                 "UNI-T", "UT60G (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 499                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 500                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 501                 NULL
 502         ),
 503         DMM(
 504                 "uni-t-ut61b-ser", fs9922,
 505                 "UNI-T", "UT61B (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 506                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 507                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 508         ),
 509         DMM(
 510                 "uni-t-ut61c-ser", fs9922,
 511                 "UNI-T", "UT61C (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 512                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 513                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 514         ),
 515         DMM(
 516                 "uni-t-ut61d-ser", fs9922,
 517                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 518                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 519                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 520         ),
 521         DMM(
 522                 "uni-t-ut61e-ser", es519xx,
 523                 /* Note: ES51922 baudrate is actually 19230! */
 524                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 525                 19200, ES519XX_14B_PACKET_SIZE, 0, 0, NULL,
 526                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 527                 NULL
 528         ),
 529         DMM(
 530                 "uni-t-ut71a-ser", ut71x,
 531                 "UNI-T", "UT71A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 532                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 533                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 534         ),
 535         DMM(
 536                 "uni-t-ut71b-ser", ut71x,
 537                 "UNI-T", "UT71B (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 538                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 539                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 540         ),
 541         DMM(
 542                 "uni-t-ut71c-ser", ut71x,
 543                 "UNI-T", "UT71C (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 544                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 545                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 546         ),
 547         DMM(
 548                 "uni-t-ut71d-ser", ut71x,
 549                 "UNI-T", "UT71D (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 550                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 551                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 552         ),
 553         DMM(
 554                 "uni-t-ut71e-ser", ut71x,
 555                 "UNI-T", "UT71E (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 556                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 557                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 558         ),
 559         DMM(
 560                 "iso-tech-idm103n", es519xx,
 561                 "ISO-TECH", "IDM103N", "2400/7o1/rts=0/dtr=1",
 562                 2400, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 563                 sr_es519xx_2400_11b_packet_valid, sr_es519xx_2400_11b_parse,
 564                 NULL
 565         ),
 566         DMM(
 567                 "tenma-72-7745-ser", fs9721,
 568                 "Tenma", "72-7745 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 569                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 570                 sr_fs9721_packet_valid, sr_fs9721_parse,
 571                 sr_fs9721_00_temp_c
 572         ),
 573         DMM(
 574                 "tenma-72-7750-ser", es519xx,
 575                 /* Note: ES51986 baudrate is actually 19230! */
 576                 "Tenma", "72-7750 (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 577                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 578                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 579                 NULL
 580         ),
 581         DMM(
 582                 "brymen-bm25x", bm25x,
 583                 "Brymen", "BM25x", "9600/8n1/rts=1/dtr=1",
 584                 9600, BRYMEN_BM25X_PACKET_SIZE, 0, 0, NULL,
 585                 sr_brymen_bm25x_packet_valid, sr_brymen_bm25x_parse,
 586                 NULL
 587         ),
 588         NULL
 589 };