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(di, sr_ctx);
  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         sr_sw_limits_init(&devc->limits);
 135         sdi->inst_type = SR_INST_SERIAL;
 136         sdi->conn = serial;
 137         sdi->priv = devc;
 138         sdi->driver = di;
 139         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 140         drvc->instances = g_slist_append(drvc->instances, sdi);
 141         devices = g_slist_append(devices, sdi);
 142
 143 scan_cleanup:
 144         serial_close(serial);
 145
 146         return devices;
 147 }
 148
 149 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 150                 const struct sr_channel_group *cg)
 151 {
 152         struct dev_context *devc;
 153
 154         (void)cg;
 155
 156         if (sdi->status != SR_ST_ACTIVE)
 157                 return SR_ERR_DEV_CLOSED;
 158
 159         if (!(devc = sdi->priv)) {
 160                 sr_err("sdi->priv was NULL.");
 161                 return SR_ERR_BUG;
 162         }
 163
 164         return sr_sw_limits_config_set(&devc->limits, key, data);
 165 }
 166
 167 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 168                 const struct sr_channel_group *cg)
 169 {
 170         (void)sdi;
 171         (void)cg;
 172
 173         switch (key) {
 174         case SR_CONF_SCAN_OPTIONS:
 175                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 176                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 177                 break;
 178         case SR_CONF_DEVICE_OPTIONS:
 179                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 180                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 181                 break;
 182         default:
 183                 return SR_ERR_NA;
 184         }
 185
 186         return SR_OK;
 187 }
 188
 189 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 190 {
 191         struct dev_context *devc;
 192         struct sr_serial_dev_inst *serial;
 193
 194         if (sdi->status != SR_ST_ACTIVE)
 195                 return SR_ERR_DEV_CLOSED;
 196
 197         devc = sdi->priv;
 198
 199         sr_sw_limits_acquisition_start(&devc->limits);
 200         std_session_send_df_header(sdi, LOG_PREFIX);
 201
 202         /* Poll every 50ms, or whenever some data comes in. */
 203         serial = sdi->conn;
 204         serial_source_add(sdi->session, serial, G_IO_IN, 50,
 205                       receive_data, (void *)sdi);
 206
 207         return SR_OK;
 208 }
 209
 210 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 211 {
 212         return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close,
 213                         sdi->conn, LOG_PREFIX);
 214 }
 215
 216 #define DMM(ID, CHIPSET, VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, \
 217                         DELAY, REQUEST, VALID, PARSE, DETAILS) \
 218         &(struct dmm_info) { \
 219                 { \
 220                         .name = ID, \
 221                         .longname = VENDOR " " MODEL, \
 222                         .api_version = 1, \
 223                         .init = init, \
 224                         .cleanup = std_cleanup, \
 225                         .scan = scan, \
 226                         .dev_list = std_dev_list, \
 227                         .config_get = NULL, \
 228                         .config_set = config_set, \
 229                         .config_list = config_list, \
 230                         .dev_open = std_serial_dev_open, \
 231                         .dev_close = std_serial_dev_close, \
 232                         .dev_acquisition_start = dev_acquisition_start, \
 233                         .dev_acquisition_stop = dev_acquisition_stop, \
 234                         .context = NULL, \
 235                 }, \
 236                 VENDOR, MODEL, CONN, BAUDRATE, PACKETSIZE, TIMEOUT, DELAY, \
 237                 REQUEST, VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
 238         }
 239
 240 SR_PRIV const struct dmm_info *serial_dmm_drivers[] = {
 241         DMM(
 242                 "bbcgm-2010", metex14,
 243                 "BBC Goertz Metrawatt", "M2110", "1200/7n2", 1200,
 244                 BBCGM_M2110_PACKET_SIZE, 0, 0, NULL,
 245                 sr_m2110_packet_valid, sr_m2110_parse,
 246                 NULL
 247         ),
 248         DMM(
 249                 "digitek-dt4000zc", fs9721,
 250                 "Digitek", "DT4000ZC", "2400/8n1/dtr=1", 2400,
 251                 FS9721_PACKET_SIZE, 0, 0, NULL,
 252                 sr_fs9721_packet_valid, sr_fs9721_parse,
 253                 sr_fs9721_10_temp_c
 254         ),
 255         DMM(
 256                 "tekpower-tp4000ZC", fs9721,
 257                 "TekPower", "TP4000ZC", "2400/8n1/dtr=1", 2400,
 258                 FS9721_PACKET_SIZE, 0, 0, NULL,
 259                 sr_fs9721_packet_valid, sr_fs9721_parse,
 260                 sr_fs9721_10_temp_c
 261         ),
 262         DMM(
 263                 "metex-me31", metex14,
 264                 "Metex", "ME-31", "600/7n2/rts=0/dtr=1", 600,
 265                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 266                 sr_metex14_packet_valid, sr_metex14_parse,
 267                 NULL
 268         ),
 269         DMM(
 270                 "peaktech-3410", metex14,
 271                 "Peaktech", "3410", "600/7n2/rts=0/dtr=1", 600,
 272                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 273                 sr_metex14_packet_valid, sr_metex14_parse,
 274                 NULL
 275         ),
 276         DMM(
 277                 "mastech-mas345", metex14,
 278                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1", 600,
 279                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 280                 sr_metex14_packet_valid, sr_metex14_parse,
 281                 NULL
 282         ),
 283         DMM(
 284                 "mastech-ms8250b", fs9721,
 285                 "MASTECH", "MS8250B", "2400/8n1/rts=0/dtr=1",
 286                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 287                 sr_fs9721_packet_valid, sr_fs9721_parse,
 288                 NULL
 289         ),
 290         DMM(
 291                 "va-va18b", fs9721,
 292                 "V&A", "VA18B", "2400/8n1", 2400,
 293                 FS9721_PACKET_SIZE, 0, 0, NULL,
 294                 sr_fs9721_packet_valid, sr_fs9721_parse,
 295                 sr_fs9721_01_temp_c
 296         ),
 297         DMM(
 298                 "va-va40b", fs9721,
 299                 "V&A", "VA40B", "2400/8n1", 2400,
 300                 FS9721_PACKET_SIZE, 0, 0, NULL,
 301                 sr_fs9721_packet_valid, sr_fs9721_parse,
 302                 sr_fs9721_max_c_min
 303         ),
 304         DMM(
 305                 "metex-m3640d", metex14,
 306                 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1", 1200,
 307                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 308                 sr_metex14_packet_valid, sr_metex14_parse,
 309                 NULL
 310         ),
 311         DMM(
 312                 "metex-m4650cr", metex14,
 313                 "Metex", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 314                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 315                 sr_metex14_packet_valid, sr_metex14_parse,
 316                 NULL
 317         ),
 318         DMM(
 319                 "peaktech-4370", metex14,
 320                 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1", 1200,
 321                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 322                 sr_metex14_packet_valid, sr_metex14_parse,
 323                 NULL
 324         ),
 325         DMM(
 326                 "pce-pce-dm32", fs9721,
 327                 "PCE", "PCE-DM32", "2400/8n1", 2400,
 328                 FS9721_PACKET_SIZE, 0, 0, NULL,
 329                 sr_fs9721_packet_valid, sr_fs9721_parse,
 330                 sr_fs9721_01_10_temp_f_c
 331         ),
 332         DMM(
 333                 "radioshack-22-168", metex14,
 334                 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1", 1200,
 335                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 336                 sr_metex14_packet_valid, sr_metex14_parse,
 337                 NULL
 338         ),
 339         DMM(
 340                 "radioshack-22-805", metex14,
 341                 "RadioShack", "22-805", "600/7n2/rts=0/dtr=1", 600,
 342                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 343                 sr_metex14_packet_valid, sr_metex14_parse,
 344                 NULL
 345         ),
 346         DMM(
 347                 "radioshack-22-812", rs9lcd,
 348                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1", 4800,
 349                 RS9LCD_PACKET_SIZE, 0, 0, NULL,
 350                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 351                 NULL
 352         ),
 353         DMM(
 354                 "tecpel-dmm-8061-ser", fs9721,
 355                 "Tecpel", "DMM-8061 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 356                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 357                 sr_fs9721_packet_valid, sr_fs9721_parse,
 358                 sr_fs9721_00_temp_c
 359         ),
 360         DMM(
 361                 "voltcraft-m3650cr", metex14,
 362                 "Voltcraft", "M-3650CR", "1200/7n2/rts=0/dtr=1", 1200,
 363                 METEX14_PACKET_SIZE, 150, 20, sr_metex14_packet_request,
 364                 sr_metex14_packet_valid, sr_metex14_parse,
 365                 NULL
 366         ),
 367         DMM(
 368                 "voltcraft-m3650d", metex14,
 369                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1", 1200,
 370                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 371                 sr_metex14_packet_valid, sr_metex14_parse,
 372                 NULL
 373         ),
 374         DMM(
 375                 "voltcraft-m4650cr", metex14,
 376                 "Voltcraft", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 377                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 378                 sr_metex14_packet_valid, sr_metex14_parse,
 379                 NULL
 380         ),
 381         DMM(
 382                 "voltcraft-me42", metex14,
 383                 "Voltcraft", "ME-42", "600/7n2/rts=0/dtr=1", 600,
 384                 METEX14_PACKET_SIZE, 250, 60, sr_metex14_packet_request,
 385                 sr_metex14_packet_valid, sr_metex14_parse,
 386                 NULL
 387         ),
 388         DMM(
 389                 "voltcraft-vc820-ser", fs9721,
 390                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 391                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 392                 sr_fs9721_packet_valid, sr_fs9721_parse,
 393                 NULL
 394         ),
 395         DMM(
 396                 /*
 397                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 398                  * the FS9922 protocol. Instead, it only sets the user-defined
 399                  * bit "z1" to indicate "diode mode" and "voltage".
 400                  */
 401                 "voltcraft-vc830-ser", fs9922,
 402                 "Voltcraft", "VC-830 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 403                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 404                 sr_fs9922_packet_valid, sr_fs9922_parse,
 405                 &sr_fs9922_z1_diode
 406         ),
 407         DMM(
 408                 "voltcraft-vc840-ser", fs9721,
 409                 "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 410                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 411                 sr_fs9721_packet_valid, sr_fs9721_parse,
 412                 sr_fs9721_00_temp_c
 413         ),
 414         DMM(
 415                 "voltcraft-vc870-ser", vc870,
 416                 "Voltcraft", "VC-870 (UT-D02 cable)", "9600/8n1/rts=0/dtr=1",
 417                 9600, VC870_PACKET_SIZE, 0, 0, NULL,
 418                 sr_vc870_packet_valid, sr_vc870_parse, NULL
 419         ),
 420         DMM(
 421                 "voltcraft-vc920-ser", ut71x,
 422                 "Voltcraft", "VC-920 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 423                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 424                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 425         ),
 426         DMM(
 427                 "voltcraft-vc940-ser", ut71x,
 428                 "Voltcraft", "VC-940 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 429                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 430                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 431         ),
 432         DMM(
 433                 "voltcraft-vc960-ser", ut71x,
 434                 "Voltcraft", "VC-960 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 435                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 436                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 437         ),
 438         DMM(
 439                 "uni-t-ut60a-ser", fs9721,
 440                 "UNI-T", "UT60A (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 441                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 442                 sr_fs9721_packet_valid, sr_fs9721_parse,
 443                 NULL
 444         ),
 445         DMM(
 446                 "uni-t-ut60e-ser", fs9721,
 447                 "UNI-T", "UT60E (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 448                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 449                 sr_fs9721_packet_valid, sr_fs9721_parse,
 450                 sr_fs9721_00_temp_c
 451         ),
 452         DMM(
 453                 /* Note: ES51986 baudrate is actually 19230! */
 454                 "uni-t-ut60g-ser", es519xx,
 455                 "UNI-T", "UT60G (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 456                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 457                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 458                 NULL
 459         ),
 460         DMM(
 461                 "uni-t-ut61b-ser", fs9922,
 462                 "UNI-T", "UT61B (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 463                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 464                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 465         ),
 466         DMM(
 467                 "uni-t-ut61c-ser", fs9922,
 468                 "UNI-T", "UT61C (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 469                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 470                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 471         ),
 472         DMM(
 473                 "uni-t-ut61d-ser", fs9922,
 474                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 475                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 476                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL
 477         ),
 478         DMM(
 479                 "uni-t-ut61e-ser", es519xx,
 480                 /* Note: ES51922 baudrate is actually 19230! */
 481                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 482                 19200, ES519XX_14B_PACKET_SIZE, 0, 0, NULL,
 483                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 484                 NULL
 485         ),
 486         DMM(
 487                 "uni-t-ut71a-ser", ut71x,
 488                 "UNI-T", "UT71A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 489                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 490                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 491         ),
 492         DMM(
 493                 "uni-t-ut71b-ser", ut71x,
 494                 "UNI-T", "UT71B (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 495                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 496                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 497         ),
 498         DMM(
 499                 "uni-t-ut71c-ser", ut71x,
 500                 "UNI-T", "UT71C (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 501                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 502                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 503         ),
 504         DMM(
 505                 "uni-t-ut71d-ser", ut71x,
 506                 "UNI-T", "UT71D (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 507                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 508                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 509         ),
 510         DMM(
 511                 "uni-t-ut71e-ser", ut71x,
 512                 "UNI-T", "UT71E (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 513                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 514                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 515         ),
 516         DMM(
 517                 "iso-tech-idm103n", es519xx,
 518                 "ISO-TECH", "IDM103N", "2400/7o1/rts=0/dtr=1",
 519                 2400, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 520                 sr_es519xx_2400_11b_packet_valid, sr_es519xx_2400_11b_parse,
 521                 NULL
 522         ),
 523         DMM(
 524                 "tenma-72-7730-ser", ut71x,
 525                 "Tenma", "72-7730 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 526                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 527                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 528         ),
 529         DMM(
 530                 "tenma-72-7732-ser", ut71x,
 531                 "Tenma", "72-7732 (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                 "tenma-72-9380a-ser", ut71x,
 537                 "Tenma", "72-9380A (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                 "tenma-72-7745-ser", fs9721,
 543                 "Tenma", "72-7745 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 544                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 545                 sr_fs9721_packet_valid, sr_fs9721_parse,
 546                 sr_fs9721_00_temp_c
 547         ),
 548         DMM(
 549                 "tenma-72-7750-ser", es519xx,
 550                 /* Note: ES51986 baudrate is actually 19230! */
 551                 "Tenma", "72-7750 (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 552                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 553                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 554                 NULL
 555         ),
 556         DMM(
 557                 "brymen-bm25x", bm25x,
 558                 "Brymen", "BM25x", "9600/8n1/rts=1/dtr=1",
 559                 9600, BRYMEN_BM25X_PACKET_SIZE, 0, 0, NULL,
 560                 sr_brymen_bm25x_packet_valid, sr_brymen_bm25x_parse,
 561                 NULL
 562         ),
 563         DMM(
 564                 "velleman-dvm4100", dtm0660,
 565                 "Velleman", "DVM4100", "2400/8n1/rts=0/dtr=1",
 566                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 567                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 568         ),
 569         DMM(
 570                 "peaktech-3415", dtm0660,
 571                 "Peaktech", "3415", "2400/8n1/rts=0/dtr=1",
 572                 2400, DTM0660_PACKET_SIZE, 0, 0, NULL,
 573                 sr_dtm0660_packet_valid, sr_dtm0660_parse, NULL
 574         ),
 575         NULL
 576 };