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_vc840_ser_driver_info;
  61 SR_PRIV struct sr_dev_driver uni_t_ut61d_ser_driver_info;
  62 SR_PRIV struct sr_dev_driver uni_t_ut61e_ser_driver_info;
  63
  64 SR_PRIV struct dmm_info dmms[] = {
  65         {
  66                 "Digitek", "DT4000ZC", "2400/8n1", 2400,
  67                 FS9721_PACKET_SIZE, NULL,
  68                 sr_fs9721_packet_valid, sr_fs9721_parse,
  69                 sr_fs9721_10_temp_c,
  70                 &digitek_dt4000zc_driver_info, receive_data_DIGITEK_DT4000ZC,
  71         },
  72         {
  73                 "TekPower", "TP4000ZC", "2400/8n1", 2400,
  74                 FS9721_PACKET_SIZE, NULL,
  75                 sr_fs9721_packet_valid, sr_fs9721_parse,
  76                 sr_fs9721_10_temp_c,
  77                 &tekpower_tp4000zc_driver_info, receive_data_TEKPOWER_TP4000ZC,
  78         },
  79         {
  80                 "Metex", "ME-31", "600/7n2/rts=0/dtr=1", 600,
  81                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
  82                 sr_metex14_packet_valid, sr_metex14_parse,
  83                 NULL,
  84                 &metex_me31_driver_info, receive_data_METEX_ME31,
  85         },
  86         {
  87                 "Peaktech", "3410", "600/7n2/rts=0/dtr=1", 600,
  88                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
  89                 sr_metex14_packet_valid, sr_metex14_parse,
  90                 NULL,
  91                 &peaktech_3410_driver_info, receive_data_PEAKTECH_3410,
  92         },
  93         {
  94                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1", 600,
  95                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
  96                 sr_metex14_packet_valid, sr_metex14_parse,
  97                 NULL,
  98                 &mastech_mas345_driver_info, receive_data_MASTECH_MAS345,
  99         },
 100         {
 101                 "V&A", "VA18B", "2400/8n1", 2400,
 102                 FS9721_PACKET_SIZE, NULL,
 103                 sr_fs9721_packet_valid, sr_fs9721_parse,
 104                 sr_fs9721_01_temp_c,
 105                 &va_va18b_driver_info, receive_data_VA_VA18B,
 106         },
 107         {
 108                 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1", 1200,
 109                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
 110                 sr_metex14_packet_valid, sr_metex14_parse,
 111                 NULL,
 112                 &metex_m3640d_driver_info, receive_data_METEX_M3640D,
 113         },
 114         {
 115                 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1", 1200,
 116                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
 117                 sr_metex14_packet_valid, sr_metex14_parse,
 118                 NULL,
 119                 &peaktech_4370_driver_info, receive_data_PEAKTECH_4370,
 120         },
 121         {
 122                 "PCE", "PCE-DM32", "2400/8n1", 2400,
 123                 FS9721_PACKET_SIZE, NULL,
 124                 sr_fs9721_packet_valid, sr_fs9721_parse,
 125                 sr_fs9721_01_10_temp_f_c,
 126                 &pce_pce_dm32_driver_info, receive_data_PCE_PCE_DM32,
 127         },
 128         {
 129                 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1", 1200,
 130                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
 131                 sr_metex14_packet_valid, sr_metex14_parse,
 132                 NULL,
 133                 &radioshack_22_168_driver_info, receive_data_RADIOSHACK_22_168,
 134         },
 135         {
 136                 "RadioShack", "22-805", "600/7n2/rts=0/dtr=1", 600,
 137                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
 138                 sr_metex14_packet_valid, sr_metex14_parse,
 139                 NULL,
 140                 &radioshack_22_805_driver_info, receive_data_RADIOSHACK_22_805,
 141         },
 142         {
 143                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1", 4800,
 144                 RS9LCD_PACKET_SIZE, NULL,
 145                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 146                 NULL,
 147                 &radioshack_22_812_driver_info, receive_data_RADIOSHACK_22_812,
 148         },
 149         {
 150                 "Tecpel", "DMM-8060 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 151                 2400, FS9721_PACKET_SIZE, NULL,
 152                 sr_fs9721_packet_valid, sr_fs9721_parse,
 153                 NULL,
 154                 &tecpel_dmm_8060_ser_driver_info,
 155                 receive_data_TECPEL_DMM_8060_SER,
 156         },
 157         {
 158                 "Tecpel", "DMM-8061 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 159                 2400, FS9721_PACKET_SIZE, NULL,
 160                 sr_fs9721_packet_valid, sr_fs9721_parse,
 161                 sr_fs9721_00_temp_c,
 162                 &tecpel_dmm_8061_ser_driver_info,
 163                 receive_data_TECPEL_DMM_8061_SER,
 164         },
 165         {
 166                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1", 1200,
 167                 METEX14_PACKET_SIZE, sr_metex14_packet_request,
 168                 sr_metex14_packet_valid, sr_metex14_parse,
 169                 NULL,
 170                 &voltcraft_m3650d_driver_info, receive_data_VOLTCRAFT_M3650D,
 171         },
 172         {
 173                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 174                 2400, FS9721_PACKET_SIZE, NULL,
 175                 sr_fs9721_packet_valid, sr_fs9721_parse,
 176                 NULL,
 177                 &voltcraft_vc820_ser_driver_info,
 178                 receive_data_VOLTCRAFT_VC820_SER,
 179         },
 180         {
 181                 "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 182                 2400, FS9721_PACKET_SIZE, NULL,
 183                 sr_fs9721_packet_valid, sr_fs9721_parse,
 184                 sr_fs9721_00_temp_c,
 185                 &voltcraft_vc840_ser_driver_info,
 186                 receive_data_VOLTCRAFT_VC840_SER,
 187         },
 188         {
 189                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 190                 2400, FS9922_PACKET_SIZE, NULL,
 191                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL,
 192                 &uni_t_ut61d_ser_driver_info, receive_data_UNI_T_UT61D_SER,
 193         },
 194         {
 195                 /* Note: ES51922 baudrate is actually 19230! */
 196                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 197                 19200, ES51922_PACKET_SIZE, NULL,
 198                 sr_es51922_packet_valid, sr_es51922_parse, NULL,
 199                 &uni_t_ut61e_ser_driver_info, receive_data_UNI_T_UT61E_SER,
 200         },
 201 };
 202
 203 static int dev_clear(int dmm)
 204 {
 205         return std_dev_clear(dmms[dmm].di, NULL);
 206 }
 207
 208 static int init(struct sr_context *sr_ctx, int dmm)
 209 {
 210         sr_dbg("Selected '%s' subdriver.", dmms[dmm].di->name);
 211
 212         return std_init(sr_ctx, dmms[dmm].di, LOG_PREFIX);
 213 }
 214
 215 static GSList *sdmm_scan(const char *conn, const char *serialcomm, int dmm)
 216 {
 217         struct sr_dev_inst *sdi;
 218         struct drv_context *drvc;
 219         struct dev_context *devc;
 220         struct sr_probe *probe;
 221         struct sr_serial_dev_inst *serial;
 222         GSList *devices;
 223         int dropped, ret;
 224         size_t len;
 225         uint8_t buf[128];
 226
 227         if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
 228                 return NULL;
 229
 230         if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
 231                 return NULL;
 232
 233         sr_info("Probing serial port %s.", conn);
 234
 235         drvc = dmms[dmm].di->priv;
 236         devices = NULL;
 237         serial_flush(serial);
 238
 239         /* Request a packet if the DMM requires this. */
 240         if (dmms[dmm].packet_request) {
 241                 if ((ret = dmms[dmm].packet_request(serial)) < 0) {
 242                         sr_err("Failed to request packet: %d.", ret);
 243                         return FALSE;
 244                 }
 245         }
 246
 247         /*
 248          * There's no way to get an ID from the multimeter. It just sends data
 249          * periodically (or upon request), so the best we can do is check if
 250          * the packets match the expected format.
 251          */
 252
 253         /* Let's get a bit of data and see if we can find a packet. */
 254         len = sizeof(buf);
 255         ret = serial_stream_detect(serial, buf, &len, dmms[dmm].packet_size,
 256                                    dmms[dmm].packet_valid, 1000,
 257                                    dmms[dmm].baudrate);
 258         if (ret != SR_OK)
 259                 goto scan_cleanup;
 260
 261         /*
 262          * If we dropped more than two packets worth of data, something is
 263          * wrong. We shouldn't quit however, since the dropped bytes might be
 264          * just zeroes at the beginning of the stream. Those can occur as a
 265          * combination of the nonstandard cable that ships with some devices
 266          * and the serial port or USB to serial adapter.
 267          */
 268         dropped = len - dmms[dmm].packet_size;
 269         if (dropped > 2 * dmms[dmm].packet_size)
 270                 sr_warn("Had to drop too much data.");
 271
 272         sr_info("Found device on port %s.", conn);
 273
 274         if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, dmms[dmm].vendor,
 275                                     dmms[dmm].device, "")))
 276                 goto scan_cleanup;
 277
 278         if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
 279                 sr_err("Device context malloc failed.");
 280                 goto scan_cleanup;
 281         }
 282
 283         sdi->inst_type = SR_INST_SERIAL;
 284         sdi->conn = serial;
 285
 286         sdi->priv = devc;
 287         sdi->driver = dmms[dmm].di;
 288         if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
 289                 goto scan_cleanup;
 290         sdi->probes = g_slist_append(sdi->probes, probe);
 291         drvc->instances = g_slist_append(drvc->instances, sdi);
 292         devices = g_slist_append(devices, sdi);
 293
 294 scan_cleanup:
 295         serial_close(serial);
 296
 297         return devices;
 298 }
 299
 300 static GSList *scan(GSList *options, int dmm)
 301 {
 302         struct sr_config *src;
 303         GSList *l, *devices;
 304         const char *conn, *serialcomm;
 305
 306         conn = serialcomm = NULL;
 307         for (l = options; l; l = l->next) {
 308                 src = l->data;
 309                 switch (src->key) {
 310                 case SR_CONF_CONN:
 311                         conn = g_variant_get_string(src->data, NULL);
 312                         break;
 313                 case SR_CONF_SERIALCOMM:
 314                         serialcomm = g_variant_get_string(src->data, NULL);
 315                         break;
 316                 }
 317         }
 318         if (!conn)
 319                 return NULL;
 320
 321         if (serialcomm) {
 322                 /* Use the provided comm specs. */
 323                 devices = sdmm_scan(conn, serialcomm, dmm);
 324         } else {
 325                 /* Try the default. */
 326                 devices = sdmm_scan(conn, dmms[dmm].conn, dmm);
 327         }
 328
 329         return devices;
 330 }
 331
 332 static GSList *dev_list(int dmm)
 333 {
 334         return ((struct drv_context *)(dmms[dmm].di->priv))->instances;
 335 }
 336
 337 static int dev_open(struct sr_dev_inst *sdi)
 338 {
 339         struct sr_serial_dev_inst *serial;
 340
 341         serial = sdi->conn;
 342         if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
 343                 return SR_ERR;
 344
 345         sdi->status = SR_ST_ACTIVE;
 346
 347         return SR_OK;
 348 }
 349
 350 static int dev_close(struct sr_dev_inst *sdi)
 351 {
 352         struct sr_serial_dev_inst *serial;
 353
 354         serial = sdi->conn;
 355         if (serial && serial->fd != -1) {
 356                 serial_close(serial);
 357                 sdi->status = SR_ST_INACTIVE;
 358         }
 359
 360         return SR_OK;
 361 }
 362
 363 static int cleanup(int dmm)
 364 {
 365         return dev_clear(dmm);
 366 }
 367
 368 static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
 369 {
 370         struct dev_context *devc;
 371
 372         if (sdi->status != SR_ST_ACTIVE)
 373                 return SR_ERR_DEV_CLOSED;
 374
 375         if (!(devc = sdi->priv)) {
 376                 sr_err("sdi->priv was NULL.");
 377                 return SR_ERR_BUG;
 378         }
 379
 380         switch (id) {
 381         case SR_CONF_LIMIT_SAMPLES:
 382                 devc->limit_samples = g_variant_get_uint64(data);
 383                 sr_dbg("Setting sample limit to %" PRIu64 ".",
 384                        devc->limit_samples);
 385                 break;
 386         case SR_CONF_LIMIT_MSEC:
 387                 devc->limit_msec = g_variant_get_uint64(data);
 388                 sr_dbg("Setting time limit to %" PRIu64 "ms.",
 389                        devc->limit_msec);
 390                 break;
 391         default:
 392                 return SR_ERR_NA;
 393         }
 394
 395         return SR_OK;
 396 }
 397
 398 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
 399 {
 400
 401         (void)sdi;
 402
 403         switch (key) {
 404         case SR_CONF_SCAN_OPTIONS:
 405                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
 406                                 hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
 407                 break;
 408         case SR_CONF_DEVICE_OPTIONS:
 409                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
 410                                 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
 411                 break;
 412         default:
 413                 return SR_ERR_NA;
 414         }
 415
 416         return SR_OK;
 417 }
 418
 419 static int dev_acquisition_start(const struct sr_dev_inst *sdi,
 420                                     void *cb_data, int dmm)
 421 {
 422         struct dev_context *devc;
 423         struct sr_serial_dev_inst *serial;
 424
 425         if (sdi->status != SR_ST_ACTIVE)
 426                 return SR_ERR_DEV_CLOSED;
 427
 428         if (!(devc = sdi->priv)) {
 429                 sr_err("sdi->priv was NULL.");
 430                 return SR_ERR_BUG;
 431         }
 432
 433         devc->cb_data = cb_data;
 434
 435         /*
 436          * Reset the number of samples to take. If we've already collected our
 437          * quota, but we start a new session, and don't reset this, we'll just
 438          * quit without acquiring any new samples.
 439          */
 440         devc->num_samples = 0;
 441         devc->starttime = g_get_monotonic_time();
 442
 443         /* Send header packet to the session bus. */
 444         std_session_send_df_header(cb_data, LOG_PREFIX);
 445
 446         /* Poll every 50ms, or whenever some data comes in. */
 447         serial = sdi->conn;
 448         sr_source_add(serial->fd, G_IO_IN, 50,
 449                       dmms[dmm].receive_data, (void *)sdi);
 450
 451         return SR_OK;
 452 }
 453
 454 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 455 {
 456         return std_dev_acquisition_stop_serial(sdi, cb_data, dev_close,
 457                                                sdi->conn, LOG_PREFIX);
 458 }
 459
 460 /* Driver-specific API function wrappers */
 461 #define HW_INIT(X) \
 462 static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); }
 463 #define HW_CLEANUP(X) \
 464 static int cleanup_##X(void) { return cleanup(X); }
 465 #define HW_SCAN(X) \
 466 static GSList *scan_##X(GSList *options) { return scan(options, X); }
 467 #define HW_DEV_LIST(X) \
 468 static GSList *dev_list_##X(void) { return dev_list(X); }
 469 #define HW_DEV_CLEAR(X) \
 470 static int dev_clear_##X(void) { return dev_clear(X); }
 471 #define HW_DEV_ACQUISITION_START(X) \
 472 static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \
 473 void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); }
 474
 475 /* Driver structs and API function wrappers */
 476 #define DRV(ID, ID_UPPER, NAME, LONGNAME) \
 477 HW_INIT(ID_UPPER) \
 478 HW_CLEANUP(ID_UPPER) \
 479 HW_SCAN(ID_UPPER) \
 480 HW_DEV_LIST(ID_UPPER) \
 481 HW_DEV_CLEAR(ID_UPPER) \
 482 HW_DEV_ACQUISITION_START(ID_UPPER) \
 483 SR_PRIV struct sr_dev_driver ID##_driver_info = { \
 484         .name = NAME, \
 485         .longname = LONGNAME, \
 486         .api_version = 1, \
 487         .init = init_##ID_UPPER, \
 488         .cleanup = cleanup_##ID_UPPER, \
 489         .scan = scan_##ID_UPPER, \
 490         .dev_list = dev_list_##ID_UPPER, \
 491         .dev_clear = dev_clear_##ID_UPPER, \
 492         .config_get = NULL, \
 493         .config_set = config_set, \
 494         .config_list = config_list, \
 495         .dev_open = dev_open, \
 496         .dev_close = dev_close, \
 497         .dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \
 498         .dev_acquisition_stop = dev_acquisition_stop, \
 499         .priv = NULL, \
 500 };
 501
 502 DRV(digitek_dt4000zc, DIGITEK_DT4000ZC, "digitek-dt4000zc", "Digitek DT4000ZC")
 503 DRV(tekpower_tp4000zc, TEKPOWER_TP4000ZC, "tekpower-tp4000zc", "TekPower TP4000ZC")
 504 DRV(metex_me31, METEX_ME31, "metex-me31", "Metex ME-31")
 505 DRV(peaktech_3410, PEAKTECH_3410, "peaktech-3410", "PeakTech 3410")
 506 DRV(mastech_mas345, MASTECH_MAS345, "mastech-mas345", "MASTECH MAS345")
 507 DRV(va_va18b, VA_VA18B, "va-va18b", "V&A VA18B")
 508 DRV(metex_m3640d, METEX_M3640D, "metex-m3640d", "Metex M-3640D")
 509 DRV(peaktech_4370, PEAKTECH_4370, "peaktech-4370", "PeakTech 4370")
 510 DRV(pce_pce_dm32, PCE_PCE_DM32, "pce-pce-dm32", "PCE PCE-DM32")
 511 DRV(radioshack_22_168, RADIOSHACK_22_168, "radioshack-22-168", "RadioShack 22-168")
 512 DRV(radioshack_22_805, RADIOSHACK_22_805, "radioshack-22-805", "RadioShack 22-805")
 513 DRV(radioshack_22_812, RADIOSHACK_22_812, "radioshack-22-812", "RadioShack 22-812")
 514 DRV(tecpel_dmm_8060_ser, TECPEL_DMM_8060_SER, "tecpel-dmm-8060-ser", "Tecpel DMM-8060 (UT-D02 cable)")
 515 DRV(tecpel_dmm_8061_ser, TECPEL_DMM_8061_SER, "tecpel-dmm-8061-ser", "Tecpel DMM-8061 (UT-D02 cable)")
 516 DRV(voltcraft_m3650d, VOLTCRAFT_M3650D, "voltcraft-m3650d", "Voltcraft M-3650D")
 517 DRV(voltcraft_vc820_ser, VOLTCRAFT_VC820_SER, "voltcraft-vc820-ser", "Voltcraft VC-820 (UT-D02 cable)")
 518 DRV(voltcraft_vc840_ser, VOLTCRAFT_VC840_SER, "voltcraft-vc840-ser", "Voltcraft VC-840 (UT-D02 cable)")
 519 DRV(uni_t_ut61d_ser, UNI_T_UT61D_SER, "uni-t-ut61d-ser", "UNI-T UT61D (UT-D02 cable)")
 520 DRV(uni_t_ut61e_ser, UNI_T_UT61E_SER, "uni-t-ut61e-ser", "UNI-T UT61E (UT-D02 cable)")