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 init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
  45 {
  46         return std_init(sr_ctx, di, LOG_PREFIX);
  47 }
  48
  49 static GSList *scan(struct sr_dev_driver *di, GSList *options)
  50 {
  51         struct dmm_info *dmm;
  52         struct sr_config *src;
  53         GSList *l, *devices;
  54         const char *conn, *serialcomm;
  55         struct sr_dev_inst *sdi;
  56         struct drv_context *drvc;
  57         struct dev_context *devc;
  58         struct sr_serial_dev_inst *serial;
  59         int dropped, ret;
  60         size_t len;
  61         uint8_t buf[128];
  62
  63         dmm = (struct dmm_info *)di;
  64
  65         conn = serialcomm = NULL;
  66         for (l = options; l; l = l->next) {
  67                 src = l->data;
  68                 switch (src->key) {
  69                 case SR_CONF_CONN:
  70                         conn = g_variant_get_string(src->data, NULL);
  71                         break;
  72                 case SR_CONF_SERIALCOMM:
  73                         serialcomm = g_variant_get_string(src->data, NULL);
  74                         break;
  75                 }
  76         }
  77         if (!conn)
  78                 return NULL;
  79
  80         if (!serialcomm)
  81                 serialcomm = dmm->conn;
  82
  83         serial = sr_serial_dev_inst_new(conn, serialcomm);
  84
  85         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
  86                 return NULL;
  87
  88         sr_info("Probing serial port %s.", conn);
  89
  90         drvc = di->context;
  91         devices = NULL;
  92         serial_flush(serial);
  93
  94         /* Request a packet if the DMM requires this. */
  95         if (dmm->packet_request) {
  96                 if ((ret = dmm->packet_request(serial)) < 0) {
  97                         sr_err("Failed to request packet: %d.", ret);
  98                         return FALSE;
  99                 }
 100         }
 101
 102         /*
 103          * There's no way to get an ID from the multimeter. It just sends data
 104          * periodically (or upon request), so the best we can do is check if
 105          * the packets match the expected format.
 106          */
 107
 108         /* Let's get a bit of data and see if we can find a packet. */
 109         len = sizeof(buf);
 110         ret = serial_stream_detect(serial, buf, &len, dmm->packet_size,
 111                                    dmm->packet_valid, 3000,
 112                                    dmm->baudrate);
 113         if (ret != SR_OK)
 114                 goto scan_cleanup;
 115
 116         /*
 117          * If we dropped more than two packets worth of data, something is
 118          * wrong. We shouldn't quit however, since the dropped bytes might be
 119          * just zeroes at the beginning of the stream. Those can occur as a
 120          * combination of the nonstandard cable that ships with some devices
 121          * and the serial port or USB to serial adapter.
 122          */
 123         dropped = len - dmm->packet_size;
 124         if (dropped > 2 * dmm->packet_size)
 125                 sr_warn("Had to drop too much data.");
 126
 127         sr_info("Found device on port %s.", conn);
 128
 129         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 130         sdi->status = SR_ST_INACTIVE;
 131         sdi->vendor = g_strdup(dmm->vendor);
 132         sdi->model = g_strdup(dmm->device);
 133         devc = g_malloc0(sizeof(struct dev_context));
 134         sdi->inst_type = SR_INST_SERIAL;
 135         sdi->conn = serial;
 136         sdi->priv = devc;
 137         sdi->driver = di;
 138         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 139         drvc->instances = g_slist_append(drvc->instances, sdi);
 140         devices = g_slist_append(devices, sdi);
 141
 142 scan_cleanup:
 143         serial_close(serial);
 144
 145         return devices;
 146 }
 147
 148 static GSList *dev_list(const struct sr_dev_driver *di)
 149 {
 150         return ((struct drv_context *)(di->context))->instances;
 151 }
 152
 153 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 154                 const struct sr_channel_group *cg)
 155 {
 156         struct dev_context *devc;
 157
 158         (void)cg;
 159
 160         if (sdi->status != SR_ST_ACTIVE)
 161                 return SR_ERR_DEV_CLOSED;
 162
 163         if (!(devc = sdi->priv)) {
 164                 sr_err("sdi->priv was NULL.");
 165                 return SR_ERR_BUG;
 166         }
 167
 168         switch (key) {
 169         case SR_CONF_LIMIT_SAMPLES:
 170                 devc->limit_samples = g_variant_get_uint64(data);
 171                 break;
 172         case SR_CONF_LIMIT_MSEC:
 173                 devc->limit_msec = g_variant_get_uint64(data);
 174                 break;
 175         default:
 176                 return SR_ERR_NA;
 177         }
 178
 179         return SR_OK;
 180 }
 181
 182 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 183                 const struct sr_channel_group *cg)
 184 {
 185         (void)sdi;
 186         (void)cg;
 187
 188         switch (key) {
 189         case SR_CONF_SCAN_OPTIONS:
 190                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 191                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 192                 break;
 193         case SR_CONF_DEVICE_OPTIONS:
 194                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 195                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 196                 break;
 197         default:
 198                 return SR_ERR_NA;
 199         }
 200
 201         return SR_OK;
 202 }
 203
 204 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 205 {
 206         struct dev_context *devc;
 207         struct sr_serial_dev_inst *serial;
 208
 209         if (sdi->status != SR_ST_ACTIVE)
 210                 return SR_ERR_DEV_CLOSED;
 211
 212         devc = sdi->priv;
 213
 214         /*
 215          * Reset the number of samples to take. If we've already collected our
 216          * quota, but we start a new session, and don't reset this, we'll just
 217          * quit without acquiring any new samples.
 218          */
 219         devc->num_samples = 0;
 220         devc->starttime = g_get_monotonic_time();
 221
 222         std_session_send_df_header(sdi, LOG_PREFIX);
 223
 224         /* Poll every 50ms, or whenever some data comes in. */
 225         serial = sdi->conn;
 226         serial_source_add(sdi->session, serial, G_IO_IN, 50,
 227                       receive_data, (void *)sdi);
 228
 229         return SR_OK;
 230 }
 231
 232 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 233 {
 234         return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close,
 235                         sdi->conn, LOG_PREFIX);
 236 }
 237
 238 #define DMM(ID, CHIPSET, VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, \
 239                         DELAY, REQUEST, VALID, PARSE, DETAILS) \
 240         &(struct dmm_info) { \
 241                 { \
 242                         .name = ID, \
 243                         .longname = VENDOR " " MODEL, \
 244                         .api_version = 1, \
 245                         .init = init, \
 246                         .cleanup = std_cleanup, \
 247                         .scan = scan, \
 248                         .dev_list = dev_list, \
 249                         .config_get = NULL, \
 250                         .config_set = config_set, \
 251                         .config_list = config_list, \
 252                         .dev_open = std_serial_dev_open, \
 253                         .dev_close = std_serial_dev_close, \
 254                         .dev_acquisition_start = dev_acquisition_start, \
 255                         .dev_acquisition_stop = dev_acquisition_stop, \
 256                         .context = NULL, \
 257                 }, \
 258                 VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, DELAY, \
 259                 REQUEST, VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
 260         }
 261
 262 SR_PRIV const struct dmm_info *serial_dmm_drivers[] = {
 263         DMM(
 264                 "bbcgm-2010", metex14,
 265                 "BBC Goertz Metrawatt", "M2110", "1200/7n2", 1200,
 266                 BBCGM_M2110_PACKET_SIZE, 0, 0, NULL,
 267                 sr_m2110_packet_valid, sr_m2110_parse,
 268                 NULL
 269         ),
 270         DMM(
 271                 "digitek-dt4000zc", fs9721,
 272                 "Digitek", "DT4000ZC", "2400/8n1/dtr=1", 2400,
 273                 FS9721_PACKET_SIZE, 0, 0, NULL,
 274                 sr_fs9721_packet_valid, sr_fs9721_parse,
 275                 sr_fs9721_10_temp_c
 276         ),
 277         DMM(
 278                 "tekpower-tp4000ZC", fs9721,
 279                 "TekPower", "TP4000ZC", "2400/8n1/dtr=1", 2400,
 280                 FS9721_PACKET_SIZE, 0, 0, NULL,
 281                 sr_fs9721_packet_valid, sr_fs9721_parse,
 282                 sr_fs9721_10_temp_c
 283         ),
 284         DMM(
 285                 "metex-me31", metex14,
 286                 "Metex", "ME-31", "600/7n2/rts=0/dtr=1", 600,
 287                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 288                 sr_metex14_packet_valid, sr_metex14_parse,
 289                 NULL
 290         ),
 291         DMM(
 292                 "peaktech-3410", metex14,
 293                 "Peaktech", "3410", "600/7n2/rts=0/dtr=1", 600,
 294                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 295                 sr_metex14_packet_valid, sr_metex14_parse,
 296                 NULL
 297         ),
 298         DMM(
 299                 "mastech-mas345", metex14,
 300                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1", 600,
 301                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 302                 sr_metex14_packet_valid, sr_metex14_parse,
 303                 NULL
 304         ),
 305         DMM(
 306                 "mastech-ms8250b", fs9721,
 307                 "MASTECH", "MS8250B", "2400/8n1/rts=0/dtr=1",
 308                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 309                 sr_fs9721_packet_valid, sr_fs9721_parse,
 310                 NULL
 311         ),
 312         DMM(
 313                 "va-va18b", fs9721,
 314                 "V&A", "VA18B", "2400/8n1", 2400,
 315                 FS9721_PACKET_SIZE, 0, 0, NULL,
 316                 sr_fs9721_packet_valid, sr_fs9721_parse,
 317                 sr_fs9721_01_temp_c
 318         ),
 319         DMM(
 320                 "va-va40b", fs9721,
 321                 "V&A", "VA40B", "2400/8n1", 2400,
 322                 FS9721_PACKET_SIZE, 0, 0, NULL,
 323                 sr_fs9721_packet_valid, sr_fs9721_parse,
 324                 sr_fs9721_max_c_min
 325         ),
 326         DMM(
 327                 "metex-m3640d", metex14,
 328                 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1", 1200,
 329                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 330                 sr_metex14_packet_valid, sr_metex14_parse,
 331                 NULL
 332         ),
 333         DMM(
 334                 "metex-m4650cr", metex14,
 335                 "Metex", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 336                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 337                 sr_metex14_packet_valid, sr_metex14_parse,
 338                 NULL
 339         ),
 340         DMM(
 341                 "peaktech-4370", metex14,
 342                 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1", 1200,
 343                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 344                 sr_metex14_packet_valid, sr_metex14_parse,
 345                 NULL
 346         ),
 347         DMM(
 348                 "pce-pce-dm32", fs9721,
 349                 "PCE", "PCE-DM32", "2400/8n1", 2400,
 350                 FS9721_PACKET_SIZE, 0, 0, NULL,
 351                 sr_fs9721_packet_valid, sr_fs9721_parse,
 352                 sr_fs9721_01_10_temp_f_c
 353         ),
 354         DMM(
 355                 "radioshack-22-168", metex14,
 356                 "RadioShack", "22-168", "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                 "radioshack-22-805", metex14,
 363                 "RadioShack", "22-805", "600/7n2/rts=0/dtr=1", 600,
 364                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 365                 sr_metex14_packet_valid, sr_metex14_parse,
 366                 NULL
 367         ),
 368         DMM(
 369                 "radioshack-22-812", rs9lcd,
 370                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1", 4800,
 371                 RS9LCD_PACKET_SIZE, 0, 0, NULL,
 372                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 373                 NULL
 374         ),
 375         DMM(
 376                 "tecpel-dmm-8061-ser", fs9721,
 377                 "Tecpel", "DMM-8061 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 378                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 379                 sr_fs9721_packet_valid, sr_fs9721_parse,
 380                 sr_fs9721_00_temp_c
 381         ),
 382         DMM(
 383                 "voltcraft-m3650cr", metex14,
 384                 "Voltcraft", "M-3650CR", "1200/7n2/rts=0/dtr=1", 1200,
 385                 METEX14_PACKET_SIZE, 150, 20, sr_metex14_packet_request,
 386                 sr_metex14_packet_valid, sr_metex14_parse,
 387                 NULL
 388         ),
 389         DMM(
 390                 "voltcraft-m3650d", metex14,
 391                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1", 1200,
 392                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 393                 sr_metex14_packet_valid, sr_metex14_parse,
 394                 NULL
 395         ),
 396         DMM(
 397                 "voltcraft-m4650cr", metex14,
 398                 "Voltcraft", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 399                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 400                 sr_metex14_packet_valid, sr_metex14_parse,
 401                 NULL
 402         ),
 403         DMM(
 404                 "voltcraft-me42", metex14,
 405                 "Voltcraft", "ME-42", "600/7n2/rts=0/dtr=1", 600,
 406                 METEX14_PACKET_SIZE, 250, 60, sr_metex14_packet_request,
 407                 sr_metex14_packet_valid, sr_metex14_parse,
 408                 NULL
 409         ),
 410         DMM(
 411                 "voltcraft-vc820-ser", fs9721,
 412                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 413                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 414                 sr_fs9721_packet_valid, sr_fs9721_parse,
 415                 NULL
 416         ),
 417         DMM(
 418                 /*
 419                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 420                  * the FS9922 protocol. Instead, it only sets the user-defined
 421                  * bit "z1" to indicate "diode mode" and "voltage".
 422                  */
 423                 "voltcraft-vc830-ser", fs9922,
 424                 "Voltcraft", "VC-830 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 425                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 426                 sr_fs9922_packet_valid, sr_fs9922_parse,
 427                 &sr_fs9922_z1_diode
 428         ),
 429         DMM(
 430                 "voltcraft-vc840-ser", fs9721,
 431                 "Voltcraft", "VC-840 (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                 sr_fs9721_00_temp_c
 435         ),
 436         DMM(
 437                 "voltcraft-vc870-ser", vc870,
 438                 "Voltcraft", "VC-870 (UT-D02 cable)", "9600/8n1/rts=0/dtr=1",
 439                 9600, VC870_PACKET_SIZE, 0, 0, NULL,
 440                 sr_vc870_packet_valid, sr_vc870_parse, NULL
 441         ),
 442         DMM(
 443                 "voltcraft-vc920-ser", ut71x,
 444                 "Voltcraft", "VC-920 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 445                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 446                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 447         ),
 448         DMM(
 449                 "voltcraft-vc940-ser", ut71x,
 450                 "Voltcraft", "VC-940 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 451                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 452                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 453         ),
 454         DMM(
 455                 "voltcraft-vc960-ser", ut71x,
 456                 "Voltcraft", "VC-960 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 457                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 458                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 459         ),
 460         DMM(
 461                 "uni-t-ut60a-ser", fs9721,
 462                 "UNI-T", "UT60A (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 463                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 464                 sr_fs9721_packet_valid, sr_fs9721_parse,
 465                 NULL
 466         ),
 467         DMM(
 468                 "uni-t-ut60e-ser", fs9721,
 469                 "UNI-T", "UT60E (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 470                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 471                 sr_fs9721_packet_valid, sr_fs9721_parse,
 472                 sr_fs9721_00_temp_c
 473         ),
 474         DMM(
 475                 /* Note: ES51986 baudrate is actually 19230! */
 476                 "uni-t-ut60g-ser", es519xx,
 477                 "UNI-T", "UT60G (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 478                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 479                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 480                 NULL
 481         ),
 482         DMM(
 483                 "uni-t-ut61b-ser", fs9922,
 484                 "UNI-T", "UT61B (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 485                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 486                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 487         ),
 488         DMM(
 489                 "uni-t-ut61c-ser", fs9922,
 490                 "UNI-T", "UT61C (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 491                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 492                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 493         ),
 494         DMM(
 495                 "uni-t-ut61d-ser", fs9922,
 496                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 497                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 498                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 499         ),
 500         DMM(
 501                 "uni-t-ut61e-ser", es519xx,
 502                 /* Note: ES51922 baudrate is actually 19230! */
 503                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 504                 19200, ES519XX_14B_PACKET_SIZE, 0, 0, NULL,
 505                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 506                 NULL
 507         ),
 508         DMM(
 509                 "uni-t-ut71a-ser", ut71x,
 510                 "UNI-T", "UT71A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 511                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 512                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 513         ),
 514         DMM(
 515                 "uni-t-ut71b-ser", ut71x,
 516                 "UNI-T", "UT71B (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 517                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 518                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 519         ),
 520         DMM(
 521                 "uni-t-ut71c-ser", ut71x,
 522                 "UNI-T", "UT71C (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 523                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 524                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 525         ),
 526         DMM(
 527                 "uni-t-ut71d-ser", ut71x,
 528                 "UNI-T", "UT71D (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 529                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 530                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 531         ),
 532         DMM(
 533                 "uni-t-ut71e-ser", ut71x,
 534                 "UNI-T", "UT71E (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 535                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 536                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 537         ),
 538         DMM(
 539                 "iso-tech-idm103n", es519xx,
 540                 "ISO-TECH", "IDM103N", "2400/7o1/rts=0/dtr=1",
 541                 2400, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 542                 sr_es519xx_2400_11b_packet_valid, sr_es519xx_2400_11b_parse,
 543                 NULL
 544         ),
 545         DMM(
 546                 "tenma-72-7730-ser", ut71x,
 547                 "Tenma", "72-7730 (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                 "tenma-72-7732-ser", ut71x,
 553                 "Tenma", "72-7732 (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                 "tenma-72-9380a-ser", ut71x,
 559                 "Tenma", "72-9380A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 560                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 561                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 562         ),
 563         DMM(
 564                 "tenma-72-7745-ser", fs9721,
 565                 "Tenma", "72-7745 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 566                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 567                 sr_fs9721_packet_valid, sr_fs9721_parse,
 568                 sr_fs9721_00_temp_c
 569         ),
 570         DMM(
 571                 "tenma-72-7750-ser", es519xx,
 572                 /* Note: ES51986 baudrate is actually 19230! */
 573                 "Tenma", "72-7750 (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 574                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 575                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 576                 NULL
 577         ),
 578         DMM(
 579                 "brymen-bm25x", bm25x,
 580                 "Brymen", "BM25x", "9600/8n1/rts=1/dtr=1",
 581                 9600, BRYMEN_BM25X_PACKET_SIZE, 0, 0, NULL,
 582                 sr_brymen_bm25x_packet_valid, sr_brymen_bm25x_parse,
 583                 NULL
 584         ),
 585         DMM(
 586                 "velleman-dvm4100", dtm0660,
 587                 "Velleman", "DVM4100", "2400/8n1/rts=0/dtr=1",
 588                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 589                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 590         ),
 591         DMM(
 592                 "peaktech-3415", dtm0660,
 593                 "Peaktech", "3415", "2400/8n1/rts=0/dtr=1",
 594                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 595                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 596         ),
 597         NULL
 598 };