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 int32_t hwopts[] = {
  33         SR_CONF_CONN,
  34         SR_CONF_SERIALCOMM,
  35 };
  36
  37 static const int32_t hwcaps[] = {
  38         SR_CONF_MULTIMETER,
  39         SR_CONF_LIMIT_SAMPLES,
  40         SR_CONF_LIMIT_MSEC,
  41         SR_CONF_CONTINUOUS,
  42 };
  43
  44 SR_PRIV struct sr_dev_driver digitek_dt4000zc_driver_info;
  45 SR_PRIV struct sr_dev_driver tekpower_tp4000zc_driver_info;
  46 SR_PRIV struct sr_dev_driver metex_me31_driver_info;
  47 SR_PRIV struct sr_dev_driver peaktech_3410_driver_info;
  48 SR_PRIV struct sr_dev_driver mastech_mas345_driver_info;
  49 SR_PRIV struct sr_dev_driver va_va18b_driver_info;
  50 SR_PRIV struct sr_dev_driver metex_m3640d_driver_info;
  51 SR_PRIV struct sr_dev_driver peaktech_4370_driver_info;
  52 SR_PRIV struct sr_dev_driver pce_pce_dm32_driver_info;
  53 SR_PRIV struct sr_dev_driver radioshack_22_168_driver_info;
  54 SR_PRIV struct sr_dev_driver radioshack_22_805_driver_info;
  55 SR_PRIV struct sr_dev_driver radioshack_22_812_driver_info;
  56 SR_PRIV struct sr_dev_driver tecpel_dmm_8060_ser_driver_info;
  57 SR_PRIV struct sr_dev_driver tecpel_dmm_8061_ser_driver_info;
  58 SR_PRIV struct sr_dev_driver voltcraft_m3650d_driver_info;
  59 SR_PRIV struct sr_dev_driver voltcraft_vc820_ser_driver_info;
  60 SR_PRIV struct sr_dev_driver voltcraft_vc830_ser_driver_info;
  61 SR_PRIV struct sr_dev_driver voltcraft_vc840_ser_driver_info;
  62 SR_PRIV struct sr_dev_driver uni_t_ut61d_ser_driver_info;
  63 SR_PRIV struct sr_dev_driver uni_t_ut61e_ser_driver_info;
  64
  65 SR_PRIV struct dmm_info dmms[] = {
  66         {
  67                 "Digitek", "DT4000ZC", "2400/8n1", 2400,
  68                 FS9721_PACKET_SIZE, NULL,
  69                 sr_fs9721_packet_valid, sr_fs9721_parse,
  70                 sr_fs9721_10_temp_c,
  71                 &digitek_dt4000zc_driver_info, receive_data_DIGITEK_DT4000ZC,
  72         },
  73         {
  74                 "TekPower", "TP4000ZC", "2400/8n1", 2400,
  75                 FS9721_PACKET_SIZE, NULL,
  76                 sr_fs9721_packet_valid, sr_fs9721_parse,
  77                 sr_fs9721_10_temp_c,
  78                 &tekpower_tp4000zc_driver_info, receive_data_TEKPOWER_TP4000ZC,
  79         },
  80         {
  81                 "Metex", "ME-31", "600/7n2/rts=0/dtr=1", 600,
  82                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
  83                 sr_metex14_packet_valid, sr_metex14_parse,
  84                 NULL,
  85                 &metex_me31_driver_info, receive_data_METEX_ME31,
  86         },
  87         {
  88                 "Peaktech", "3410", "600/7n2/rts=0/dtr=1", 600,
  89                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
  90                 sr_metex14_packet_valid, sr_metex14_parse,
  91                 NULL,
  92                 &peaktech_3410_driver_info, receive_data_PEAKTECH_3410,
  93         },
  94         {
  95                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1", 600,
  96                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
  97                 sr_metex14_packet_valid, sr_metex14_parse,
  98                 NULL,
  99                 &mastech_mas345_driver_info, receive_data_MASTECH_MAS345,
 100         },
 101         {
 102                 "V&A", "VA18B", "2400/8n1", 2400,
 103                 FS9721_PACKET_SIZE, NULL,
 104                 sr_fs9721_packet_valid, sr_fs9721_parse,
 105                 sr_fs9721_01_temp_c,
 106                 &va_va18b_driver_info, receive_data_VA_VA18B,
 107         },
 108         {
 109                 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1", 1200,
 110                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
 111                 sr_metex14_packet_valid, sr_metex14_parse,
 112                 NULL,
 113                 &metex_m3640d_driver_info, receive_data_METEX_M3640D,
 114         },
 115         {
 116                 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1", 1200,
 117                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
 118                 sr_metex14_packet_valid, sr_metex14_parse,
 119                 NULL,
 120                 &peaktech_4370_driver_info, receive_data_PEAKTECH_4370,
 121         },
 122         {
 123                 "PCE", "PCE-DM32", "2400/8n1", 2400,
 124                 FS9721_PACKET_SIZE, NULL,
 125                 sr_fs9721_packet_valid, sr_fs9721_parse,
 126                 sr_fs9721_01_10_temp_f_c,
 127                 &pce_pce_dm32_driver_info, receive_data_PCE_PCE_DM32,
 128         },
 129         {
 130                 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1", 1200,
 131                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
 132                 sr_metex14_packet_valid, sr_metex14_parse,
 133                 NULL,
 134                 &radioshack_22_168_driver_info, receive_data_RADIOSHACK_22_168,
 135         },
 136         {
 137                 "RadioShack", "22-805", "600/7n2/rts=0/dtr=1", 600,
 138                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
 139                 sr_metex14_packet_valid, sr_metex14_parse,
 140                 NULL,
 141                 &radioshack_22_805_driver_info, receive_data_RADIOSHACK_22_805,
 142         },
 143         {
 144                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1", 4800,
 145                 RS9LCD_PACKET_SIZE, NULL,
 146                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 147                 NULL,
 148                 &radioshack_22_812_driver_info, receive_data_RADIOSHACK_22_812,
 149         },
 150         {
 151                 "Tecpel", "DMM-8060 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 152                 2400, FS9721_PACKET_SIZE, NULL,
 153                 sr_fs9721_packet_valid, sr_fs9721_parse,
 154                 NULL,
 155                 &tecpel_dmm_8060_ser_driver_info,
 156                 receive_data_TECPEL_DMM_8060_SER,
 157         },
 158         {
 159                 "Tecpel", "DMM-8061 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 160                 2400, FS9721_PACKET_SIZE, NULL,
 161                 sr_fs9721_packet_valid, sr_fs9721_parse,
 162                 sr_fs9721_00_temp_c,
 163                 &tecpel_dmm_8061_ser_driver_info,
 164                 receive_data_TECPEL_DMM_8061_SER,
 165         },
 166         {
 167                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1", 1200,
 168                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
 169                 sr_metex14_packet_valid, sr_metex14_parse,
 170                 NULL,
 171                 &voltcraft_m3650d_driver_info, receive_data_VOLTCRAFT_M3650D,
 172         },
 173         {
 174                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 175                 2400, FS9721_PACKET_SIZE, NULL,
 176                 sr_fs9721_packet_valid, sr_fs9721_parse,
 177                 NULL,
 178                 &voltcraft_vc820_ser_driver_info,
 179                 receive_data_VOLTCRAFT_VC820_SER,
 180         },
 181         {
 182                 "Voltcraft", "VC-830 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 183                 2400, FS9922_PACKET_SIZE, NULL,
 184                 sr_fs9922_packet_valid, sr_fs9922_parse,
 185                 NULL,
 186                 &voltcraft_vc830_ser_driver_info,
 187                 receive_data_VOLTCRAFT_VC830_SER,
 188         },
 189         {
 190                 "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 191                 2400, FS9721_PACKET_SIZE, NULL,
 192                 sr_fs9721_packet_valid, sr_fs9721_parse,
 193                 sr_fs9721_00_temp_c,
 194                 &voltcraft_vc840_ser_driver_info,
 195                 receive_data_VOLTCRAFT_VC840_SER,
 196         },
 197         {
 198                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 199                 2400, FS9922_PACKET_SIZE, NULL,
 200                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL,
 201                 &uni_t_ut61d_ser_driver_info, receive_data_UNI_T_UT61D_SER,
 202         },
 203         {
 204                 /* Note: ES51922 baudrate is actually 19230! */
 205                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 206                 19200, ES51922_PACKET_SIZE, NULL,
 207                 sr_es51922_packet_valid, sr_es51922_parse, NULL,
 208                 &uni_t_ut61e_ser_driver_info, receive_data_UNI_T_UT61E_SER,
 209         },
 210 };
 211
 212 static int dev_clear(int dmm)
 213 {
 214         return std_dev_clear(dmms[dmm].di, NULL);
 215 }
 216
 217 static int init(struct sr_context *sr_ctx, int dmm)
 218 {
 219         sr_dbg("Selected '%s' subdriver.", dmms[dmm].di->name);
 220
 221         return std_init(sr_ctx, dmms[dmm].di, LOG_PREFIX);
 222 }
 223
 224 static GSList *sdmm_scan(const char *conn, const char *serialcomm, int dmm)
 225 {
 226         struct sr_dev_inst *sdi;
 227         struct drv_context *drvc;
 228         struct dev_context *devc;
 229         struct sr_probe *probe;
 230         struct sr_serial_dev_inst *serial;
 231         GSList *devices;
 232         int dropped, ret;
 233         size_t len;
 234         uint8_t buf[128];
 235
 236         if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
 237                 return NULL;
 238
 239         if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
 240                 return NULL;
 241
 242         sr_info("Probing serial port %s.", conn);
 243
 244         drvc = dmms[dmm].di->priv;
 245         devices = NULL;
 246         serial_flush(serial);
 247
 248         /* Request a packet if the DMM requires this. */
 249         if (dmms[dmm].packet_request) {
 250                 if ((ret = dmms[dmm].packet_request(serial)) < 0) {
 251                         sr_err("Failed to request packet: %d.", ret);
 252                         return FALSE;
 253                 }
 254         }
 255
 256         /*
 257          * There's no way to get an ID from the multimeter. It just sends data
 258          * periodically (or upon request), so the best we can do is check if
 259          * the packets match the expected format.
 260          */
 261
 262         /* Let's get a bit of data and see if we can find a packet. */
 263         len = sizeof(buf);
 264         ret = serial_stream_detect(serial, buf, &len, dmms[dmm].packet_size,
 265                                    dmms[dmm].packet_valid, 1000,
 266                                    dmms[dmm].baudrate);
 267         if (ret != SR_OK)
 268                 goto scan_cleanup;
 269
 270         /*
 271          * If we dropped more than two packets worth of data, something is
 272          * wrong. We shouldn't quit however, since the dropped bytes might be
 273          * just zeroes at the beginning of the stream. Those can occur as a
 274          * combination of the nonstandard cable that ships with some devices
 275          * and the serial port or USB to serial adapter.
 276          */
 277         dropped = len - dmms[dmm].packet_size;
 278         if (dropped > 2 * dmms[dmm].packet_size)
 279                 sr_warn("Had to drop too much data.");
 280
 281         sr_info("Found device on port %s.", conn);
 282
 283         if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, dmms[dmm].vendor,
 284                                     dmms[dmm].device, "")))
 285                 goto scan_cleanup;
 286
 287         if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
 288                 sr_err("Device context malloc failed.");
 289                 goto scan_cleanup;
 290         }
 291
 292         sdi->inst_type = SR_INST_SERIAL;
 293         sdi->conn = serial;
 294
 295         sdi->priv = devc;
 296         sdi->driver = dmms[dmm].di;
 297         if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
 298                 goto scan_cleanup;
 299         sdi->probes = g_slist_append(sdi->probes, probe);
 300         drvc->instances = g_slist_append(drvc->instances, sdi);
 301         devices = g_slist_append(devices, sdi);
 302
 303 scan_cleanup:
 304         serial_close(serial);
 305
 306         return devices;
 307 }
 308
 309 static GSList *scan(GSList *options, int dmm)
 310 {
 311         struct sr_config *src;
 312         GSList *l, *devices;
 313         const char *conn, *serialcomm;
 314
 315         conn = serialcomm = NULL;
 316         for (l = options; l; l = l->next) {
 317                 src = l->data;
 318                 switch (src->key) {
 319                 case SR_CONF_CONN:
 320                         conn = g_variant_get_string(src->data, NULL);
 321                         break;
 322                 case SR_CONF_SERIALCOMM:
 323                         serialcomm = g_variant_get_string(src->data, NULL);
 324                         break;
 325                 }
 326         }
 327         if (!conn)
 328                 return NULL;
 329
 330         if (serialcomm) {
 331                 /* Use the provided comm specs. */
 332                 devices = sdmm_scan(conn, serialcomm, dmm);
 333         } else {
 334                 /* Try the default. */
 335                 devices = sdmm_scan(conn, dmms[dmm].conn, dmm);
 336         }
 337
 338         return devices;
 339 }
 340
 341 static GSList *dev_list(int dmm)
 342 {
 343         return ((struct drv_context *)(dmms[dmm].di->priv))->instances;
 344 }
 345
 346 static int dev_open(struct sr_dev_inst *sdi)
 347 {
 348         struct sr_serial_dev_inst *serial;
 349
 350         serial = sdi->conn;
 351         if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
 352                 return SR_ERR;
 353
 354         sdi->status = SR_ST_ACTIVE;
 355
 356         return SR_OK;
 357 }
 358
 359 static int dev_close(struct sr_dev_inst *sdi)
 360 {
 361         struct sr_serial_dev_inst *serial;
 362
 363         serial = sdi->conn;
 364         if (serial && serial->fd != -1) {
 365                 serial_close(serial);
 366                 sdi->status = SR_ST_INACTIVE;
 367         }
 368
 369         return SR_OK;
 370 }
 371
 372 static int cleanup(int dmm)
 373 {
 374         return dev_clear(dmm);
 375 }
 376
 377 static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
 378 {
 379         struct dev_context *devc;
 380
 381         if (sdi->status != SR_ST_ACTIVE)
 382                 return SR_ERR_DEV_CLOSED;
 383
 384         if (!(devc = sdi->priv)) {
 385                 sr_err("sdi->priv was NULL.");
 386                 return SR_ERR_BUG;
 387         }
 388
 389         switch (id) {
 390         case SR_CONF_LIMIT_SAMPLES:
 391                 devc->limit_samples = g_variant_get_uint64(data);
 392                 sr_dbg("Setting sample limit to %" PRIu64 ".",
 393                        devc->limit_samples);
 394                 break;
 395         case SR_CONF_LIMIT_MSEC:
 396                 devc->limit_msec = g_variant_get_uint64(data);
 397                 sr_dbg("Setting time limit to %" PRIu64 "ms.",
 398                        devc->limit_msec);
 399                 break;
 400         default:
 401                 return SR_ERR_NA;
 402         }
 403
 404         return SR_OK;
 405 }
 406
 407 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
 408 {
 409
 410         (void)sdi;
 411
 412         switch (key) {
 413         case SR_CONF_SCAN_OPTIONS:
 414                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
 415                                 hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
 416                 break;
 417         case SR_CONF_DEVICE_OPTIONS:
 418                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
 419                                 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
 420                 break;
 421         default:
 422                 return SR_ERR_NA;
 423         }
 424
 425         return SR_OK;
 426 }
 427
 428 static int dev_acquisition_start(const struct sr_dev_inst *sdi,
 429                                     void *cb_data, int dmm)
 430 {
 431         struct dev_context *devc;
 432         struct sr_serial_dev_inst *serial;
 433
 434         if (sdi->status != SR_ST_ACTIVE)
 435                 return SR_ERR_DEV_CLOSED;
 436
 437         if (!(devc = sdi->priv)) {
 438                 sr_err("sdi->priv was NULL.");
 439                 return SR_ERR_BUG;
 440         }
 441
 442         devc->cb_data = cb_data;
 443
 444         /*
 445          * Reset the number of samples to take. If we've already collected our
 446          * quota, but we start a new session, and don't reset this, we'll just
 447          * quit without acquiring any new samples.
 448          */
 449         devc->num_samples = 0;
 450         devc->starttime = g_get_monotonic_time();
 451
 452         /* Send header packet to the session bus. */
 453         std_session_send_df_header(cb_data, LOG_PREFIX);
 454
 455         /* Poll every 50ms, or whenever some data comes in. */
 456         serial = sdi->conn;
 457         sr_source_add(serial->fd, G_IO_IN, 50,
 458                       dmms[dmm].receive_data, (void *)sdi);
 459
 460         return SR_OK;
 461 }
 462
 463 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 464 {
 465         return std_dev_acquisition_stop_serial(sdi, cb_data, dev_close,
 466                                                sdi->conn, LOG_PREFIX);
 467 }
 468
 469 /* Driver-specific API function wrappers */
 470 #define HW_INIT(X) \
 471 static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); }
 472 #define HW_CLEANUP(X) \
 473 static int cleanup_##X(void) { return cleanup(X); }
 474 #define HW_SCAN(X) \
 475 static GSList *scan_##X(GSList *options) { return scan(options, X); }
 476 #define HW_DEV_LIST(X) \
 477 static GSList *dev_list_##X(void) { return dev_list(X); }
 478 #define HW_DEV_CLEAR(X) \
 479 static int dev_clear_##X(void) { return dev_clear(X); }
 480 #define HW_DEV_ACQUISITION_START(X) \
 481 static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \
 482 void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); }
 483
 484 /* Driver structs and API function wrappers */
 485 #define DRV(ID, ID_UPPER, NAME, LONGNAME) \
 486 HW_INIT(ID_UPPER) \
 487 HW_CLEANUP(ID_UPPER) \
 488 HW_SCAN(ID_UPPER) \
 489 HW_DEV_LIST(ID_UPPER) \
 490 HW_DEV_CLEAR(ID_UPPER) \
 491 HW_DEV_ACQUISITION_START(ID_UPPER) \
 492 SR_PRIV struct sr_dev_driver ID##_driver_info = { \
 493         .name = NAME, \
 494         .longname = LONGNAME, \
 495         .api_version = 1, \
 496         .init = init_##ID_UPPER, \
 497         .cleanup = cleanup_##ID_UPPER, \
 498         .scan = scan_##ID_UPPER, \
 499         .dev_list = dev_list_##ID_UPPER, \
 500         .dev_clear = dev_clear_##ID_UPPER, \
 501         .config_get = NULL, \
 502         .config_set = config_set, \
 503         .config_list = config_list, \
 504         .dev_open = dev_open, \
 505         .dev_close = dev_close, \
 506         .dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \
 507         .dev_acquisition_stop = dev_acquisition_stop, \
 508         .priv = NULL, \
 509 };
 510
 511 DRV(digitek_dt4000zc, DIGITEK_DT4000ZC, "digitek-dt4000zc", "Digitek DT4000ZC")
 512 DRV(tekpower_tp4000zc, TEKPOWER_TP4000ZC, "tekpower-tp4000zc", "TekPower TP4000ZC")
 513 DRV(metex_me31, METEX_ME31, "metex-me31", "Metex ME-31")
 514 DRV(peaktech_3410, PEAKTECH_3410, "peaktech-3410", "PeakTech 3410")
 515 DRV(mastech_mas345, MASTECH_MAS345, "mastech-mas345", "MASTECH MAS345")
 516 DRV(va_va18b, VA_VA18B, "va-va18b", "V&A VA18B")
 517 DRV(metex_m3640d, METEX_M3640D, "metex-m3640d", "Metex M-3640D")
 518 DRV(peaktech_4370, PEAKTECH_4370, "peaktech-4370", "PeakTech 4370")
 519 DRV(pce_pce_dm32, PCE_PCE_DM32, "pce-pce-dm32", "PCE PCE-DM32")
 520 DRV(radioshack_22_168, RADIOSHACK_22_168, "radioshack-22-168", "RadioShack 22-168")
 521 DRV(radioshack_22_805, RADIOSHACK_22_805, "radioshack-22-805", "RadioShack 22-805")
 522 DRV(radioshack_22_812, RADIOSHACK_22_812, "radioshack-22-812", "RadioShack 22-812")
 523 DRV(tecpel_dmm_8060_ser, TECPEL_DMM_8060_SER, "tecpel-dmm-8060-ser", "Tecpel DMM-8060 (UT-D02 cable)")
 524 DRV(tecpel_dmm_8061_ser, TECPEL_DMM_8061_SER, "tecpel-dmm-8061-ser", "Tecpel DMM-8061 (UT-D02 cable)")
 525 DRV(voltcraft_m3650d, VOLTCRAFT_M3650D, "voltcraft-m3650d", "Voltcraft M-3650D")
 526 DRV(voltcraft_vc820_ser, VOLTCRAFT_VC820_SER, "voltcraft-vc820-ser", "Voltcraft VC-820 (UT-D02 cable)")
 527 DRV(voltcraft_vc830_ser, VOLTCRAFT_VC830_SER, "voltcraft-vc830-ser", "Voltcraft VC-830 (UT-D02 cable)")
 528 DRV(voltcraft_vc840_ser, VOLTCRAFT_VC840_SER, "voltcraft-vc840-ser", "Voltcraft VC-840 (UT-D02 cable)")
 529 DRV(uni_t_ut61d_ser, UNI_T_UT61D_SER, "uni-t-ut61d-ser", "UNI-T UT61D (UT-D02 cable)")
 530 DRV(uni_t_ut61e_ser, UNI_T_UT61E_SER, "uni-t-ut61e-ser", "UNI-T UT61E (UT-D02 cable)")