2 * This file is part of the libsigrok project.
4 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
5 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
26 static const struct dslogic_profile supported_device[] = {
27 /* DreamSourceLab DSLogic */
28 { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
29 "dreamsourcelab-dslogic-fx2.fw",
30 0, "DreamSourceLab", "DSLogic", 256 * 1048576ULL},
31 /* DreamSourceLab DSCope */
32 { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
33 "dreamsourcelab-dscope-fx2.fw",
34 0, "DreamSourceLab", "DSCope", 256 * 1048576ULL},
35 /* DreamSourceLab DSLogic Pro */
36 { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
37 "dreamsourcelab-dslogic-pro-fx2.fw",
38 0, "DreamSourceLab", "DSLogic", 256 * 1048576ULL},
39 /* DreamSourceLab DSLogic Plus */
40 { 0x2a0e, 0x0020, "DreamSourceLab", "DSLogic Plus", NULL,
41 "dreamsourcelab-dslogic-plus-fx2.fw",
42 0, "DreamSourceLab", "DSLogic", 256 * 1048576ULL},
43 /* DreamSourceLab DSLogic Basic */
44 { 0x2a0e, 0x0021, "DreamSourceLab", "DSLogic Basic", NULL,
45 "dreamsourcelab-dslogic-basic-fx2.fw",
46 0, "DreamSourceLab", "DSLogic", 256 * 1024ULL},
51 static const uint32_t drvopts[] = {
52 SR_CONF_LOGIC_ANALYZER,
55 static const uint32_t scanopts[] = {
59 static const uint32_t devopts[] = {
60 SR_CONF_CONTINUOUS | SR_CONF_SET | SR_CONF_GET,
61 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
62 SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
63 SR_CONF_CONN | SR_CONF_GET,
64 SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
65 SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
66 SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
67 SR_CONF_EXTERNAL_CLOCK | SR_CONF_GET | SR_CONF_SET,
68 SR_CONF_CLOCK_EDGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
71 /* Names assigned to available edge slope choices. */
72 static const char *const signal_edge_names[] = {
73 [DS_EDGE_RISING] = "rising",
74 [DS_EDGE_FALLING] = "falling",
80 } dslogic_voltage_thresholds[] = {
85 static const uint64_t samplerates[] = {
104 static gboolean is_plausible(const struct libusb_device_descriptor *des)
108 for (i = 0; supported_device[i].vid; i++) {
109 if (des->idVendor != supported_device[i].vid)
111 if (des->idProduct == supported_device[i].pid)
118 static GSList *scan(struct sr_dev_driver *di, GSList *options)
120 struct drv_context *drvc;
121 struct dev_context *devc;
122 struct sr_dev_inst *sdi;
123 struct sr_usb_dev_inst *usb;
124 struct sr_channel *ch;
125 struct sr_channel_group *cg;
126 struct sr_config *src;
127 const struct dslogic_profile *prof;
128 GSList *l, *devices, *conn_devices;
129 gboolean has_firmware;
130 struct libusb_device_descriptor des;
131 libusb_device **devlist;
132 struct libusb_device_handle *hdl;
135 char manufacturer[64], product[64], serial_num[64], connection_id[64];
136 char channel_name[16];
141 for (l = options; l; l = l->next) {
145 conn = g_variant_get_string(src->data, NULL);
150 conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
154 /* Find all dslogic compatible devices and upload firmware to them. */
156 libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
157 for (i = 0; devlist[i]; i++) {
160 for (l = conn_devices; l; l = l->next) {
162 if (usb->bus == libusb_get_bus_number(devlist[i])
163 && usb->address == libusb_get_device_address(devlist[i]))
167 /* This device matched none of the ones that
168 * matched the conn specification. */
172 libusb_get_device_descriptor( devlist[i], &des);
174 if (!is_plausible(&des))
177 if ((ret = libusb_open(devlist[i], &hdl)) < 0) {
178 sr_warn("Failed to open potential device with "
179 "VID:PID %04x:%04x: %s.", des.idVendor,
180 des.idProduct, libusb_error_name(ret));
184 if (des.iManufacturer == 0) {
185 manufacturer[0] = '\0';
186 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
187 des.iManufacturer, (unsigned char *) manufacturer,
188 sizeof(manufacturer))) < 0) {
189 sr_warn("Failed to get manufacturer string descriptor: %s.",
190 libusb_error_name(ret));
194 if (des.iProduct == 0) {
196 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
197 des.iProduct, (unsigned char *) product,
198 sizeof(product))) < 0) {
199 sr_warn("Failed to get product string descriptor: %s.",
200 libusb_error_name(ret));
204 if (des.iSerialNumber == 0) {
205 serial_num[0] = '\0';
206 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
207 des.iSerialNumber, (unsigned char *) serial_num,
208 sizeof(serial_num))) < 0) {
209 sr_warn("Failed to get serial number string descriptor: %s.",
210 libusb_error_name(ret));
214 usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
219 for (j = 0; supported_device[j].vid; j++) {
220 if (des.idVendor == supported_device[j].vid &&
221 des.idProduct == supported_device[j].pid &&
222 (!strcmp(manufacturer, supported_device[j].usb_manufacturer)) &&
223 (!strcmp(product, "USB-based Instrument") ||
224 !strcmp(product, supported_device[j].usb_product))) {
225 prof = &supported_device[j];
230 /* Skip if the device was not found. */
234 sdi = g_malloc0(sizeof(struct sr_dev_inst));
235 sdi->status = SR_ST_INITIALIZING;
236 sdi->vendor = g_strdup(prof->vendor);
237 sdi->model = g_strdup(prof->model);
238 sdi->version = g_strdup(prof->model_version);
239 sdi->serial_num = g_strdup(serial_num);
240 sdi->connection_id = g_strdup(connection_id);
242 /* Logic channels, all in one channel group. */
243 cg = g_malloc0(sizeof(struct sr_channel_group));
244 cg->name = g_strdup("Logic");
245 for (j = 0; j < 16; j++) {
246 sprintf(channel_name, "%d", j);
247 ch = sr_channel_new(sdi, j, SR_CHANNEL_LOGIC,
249 cg->channels = g_slist_append(cg->channels, ch);
251 sdi->channel_groups = g_slist_append(NULL, cg);
253 devc = dslogic_dev_new();
254 devc->profile = prof;
256 devices = g_slist_append(devices, sdi);
258 devc->samplerates = samplerates;
259 devc->num_samplerates = ARRAY_SIZE(samplerates);
260 has_firmware = usb_match_manuf_prod(devlist[i], "DreamSourceLab", "USB-based Instrument");
263 /* Already has the firmware, so fix the new address. */
264 sr_dbg("Found an dslogic device.");
265 sdi->status = SR_ST_INACTIVE;
266 sdi->inst_type = SR_INST_USB;
267 sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
268 libusb_get_device_address(devlist[i]), NULL);
270 if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
271 USB_CONFIGURATION, prof->firmware) == SR_OK)
272 /* Store when this device's FW was updated. */
273 devc->fw_updated = g_get_monotonic_time();
275 sr_err("Firmware upload failed for "
276 "device %d.%d (logical).",
277 libusb_get_bus_number(devlist[i]),
278 libusb_get_device_address(devlist[i]));
279 sdi->inst_type = SR_INST_USB;
280 sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
284 libusb_free_device_list(devlist, 1);
285 g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
287 return std_scan_complete(di, devices);
290 static void clear_dev_context(void *priv)
292 struct dev_context *devc;
298 static int dev_clear(const struct sr_dev_driver *di)
300 return std_dev_clear(di, clear_dev_context);
303 static int dev_open(struct sr_dev_inst *sdi)
305 struct sr_dev_driver *di = sdi->driver;
306 struct sr_usb_dev_inst *usb;
307 struct dev_context *devc;
309 int64_t timediff_us, timediff_ms;
315 * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
316 * milliseconds for the FX2 to renumerate.
319 if (devc->fw_updated > 0) {
320 sr_info("Waiting for device to reset.");
321 /* Takes >= 300ms for the FX2 to be gone from the USB bus. */
322 g_usleep(300 * 1000);
324 while (timediff_ms < MAX_RENUM_DELAY_MS) {
325 if ((ret = dslogic_dev_open(sdi, di)) == SR_OK)
327 g_usleep(100 * 1000);
329 timediff_us = g_get_monotonic_time() - devc->fw_updated;
330 timediff_ms = timediff_us / 1000;
331 sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
334 sr_err("Device failed to renumerate.");
337 sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
339 sr_info("Firmware upload was not needed.");
340 ret = dslogic_dev_open(sdi, di);
344 sr_err("Unable to open device.");
348 ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
351 case LIBUSB_ERROR_BUSY:
352 sr_err("Unable to claim USB interface. Another "
353 "program or driver has already claimed it.");
355 case LIBUSB_ERROR_NO_DEVICE:
356 sr_err("Device has been disconnected.");
359 sr_err("Unable to claim interface: %s.",
360 libusb_error_name(ret));
368 if ((ret = dslogic_fpga_firmware_upload(sdi)) != SR_OK)
371 if (devc->cur_samplerate == 0) {
372 /* Samplerate hasn't been set; default to the slowest one. */
373 devc->cur_samplerate = devc->samplerates[0];
376 if (devc->cur_threshold == 0.0)
377 devc->cur_threshold = 1.5;
382 static int dev_close(struct sr_dev_inst *sdi)
384 struct sr_usb_dev_inst *usb;
391 sr_info("dslogic: Closing device on %d.%d (logical) / %s (physical) interface %d.",
392 usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
393 libusb_release_interface(usb->devhdl, USB_INTERFACE);
394 libusb_close(usb->devhdl);
396 sdi->status = SR_ST_INACTIVE;
401 static int config_get(uint32_t key, GVariant **data,
402 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
404 struct dev_context *devc;
405 struct sr_usb_dev_inst *usb;
407 unsigned int i, voltage_range;
422 if (usb->address == 255)
423 /* Device still needs to re-enumerate after firmware
424 * upload, so we don't know its (future) address. */
426 snprintf(str, 128, "%d.%d", usb->bus, usb->address);
427 *data = g_variant_new_string(str);
429 case SR_CONF_VOLTAGE_THRESHOLD:
430 if (!strcmp(devc->profile->model, "DSLogic")) {
433 for (i = 0; i < ARRAY_SIZE(dslogic_voltage_thresholds); i++)
434 if (dslogic_voltage_thresholds[i].low ==
435 devc->cur_threshold) {
440 range[0] = g_variant_new_double(
441 dslogic_voltage_thresholds[voltage_range].low);
442 range[1] = g_variant_new_double(
443 dslogic_voltage_thresholds[voltage_range].high);
445 range[0] = g_variant_new_double(devc->cur_threshold);
446 range[1] = g_variant_new_double(devc->cur_threshold);
448 *data = g_variant_new_tuple(range, 2);
450 case SR_CONF_LIMIT_SAMPLES:
451 *data = g_variant_new_uint64(devc->limit_samples);
453 case SR_CONF_SAMPLERATE:
454 *data = g_variant_new_uint64(devc->cur_samplerate);
456 case SR_CONF_CAPTURE_RATIO:
457 *data = g_variant_new_uint64(devc->capture_ratio);
459 case SR_CONF_EXTERNAL_CLOCK:
460 *data = g_variant_new_boolean(devc->external_clock);
462 case SR_CONF_CONTINUOUS:
463 *data = g_variant_new_boolean(devc->continuous_mode);
465 case SR_CONF_CLOCK_EDGE:
466 i = devc->clock_edge;
467 if (i >= ARRAY_SIZE(signal_edge_names))
469 *data = g_variant_new_string(signal_edge_names[0]);
479 * Helper for mapping a string-typed configuration value to an index
480 * within a table of possible values.
482 static int lookup_index(GVariant *value, const char *const *table, int len)
487 entry = g_variant_get_string(value, NULL);
491 /* Linear search is fine for very small tables. */
492 for (i = 0; i < len; i++) {
493 if (strcmp(entry, table[i]) == 0)
500 static int config_set(uint32_t key, GVariant *data,
501 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
503 struct dev_context *devc;
513 if (sdi->status != SR_ST_ACTIVE)
521 case SR_CONF_SAMPLERATE:
522 arg = g_variant_get_uint64(data);
523 for (i = 0; i < devc->num_samplerates; i++) {
524 if (devc->samplerates[i] == arg) {
525 devc->cur_samplerate = arg;
529 if (i == devc->num_samplerates)
532 case SR_CONF_LIMIT_SAMPLES:
533 devc->limit_samples = g_variant_get_uint64(data);
535 case SR_CONF_CAPTURE_RATIO:
536 devc->capture_ratio = g_variant_get_uint64(data);
537 ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK;
539 case SR_CONF_VOLTAGE_THRESHOLD:
540 g_variant_get(data, "(dd)", &low, &high);
541 if (!strcmp(devc->profile->model, "DSLogic")) {
542 for (i = 0; (unsigned int)i <
543 ARRAY_SIZE(dslogic_voltage_thresholds); i++) {
544 if (fabs(dslogic_voltage_thresholds[i].low - low) < 0.1 &&
545 fabs(dslogic_voltage_thresholds[i].high - high) < 0.1) {
546 devc->cur_threshold =
547 dslogic_voltage_thresholds[i].low;
551 ret = dslogic_fpga_firmware_upload(sdi);
553 ret = dslogic_set_voltage_threshold(sdi, (low + high) / 2.0);
556 case SR_CONF_EXTERNAL_CLOCK:
557 devc->external_clock = g_variant_get_boolean(data);
559 case SR_CONF_CONTINUOUS:
560 devc->continuous_mode = g_variant_get_boolean(data);
562 case SR_CONF_CLOCK_EDGE:
563 i = lookup_index(data, signal_edge_names,
564 ARRAY_SIZE(signal_edge_names));
567 devc->clock_edge = i;
576 static int config_list(uint32_t key, GVariant **data,
577 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
579 struct dev_context *devc = NULL;
580 GVariant *gvar, *range[2];
588 case SR_CONF_SCAN_OPTIONS:
589 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
590 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
592 case SR_CONF_DEVICE_OPTIONS:
594 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
595 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
598 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
599 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
602 case SR_CONF_VOLTAGE_THRESHOLD:
605 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
606 if (devc && !strcmp(devc->profile->model, "DSLogic")) {
607 for (i = 0; i < ARRAY_SIZE(dslogic_voltage_thresholds); i++) {
608 range[0] = g_variant_new_double(dslogic_voltage_thresholds[i].low);
609 range[1] = g_variant_new_double(dslogic_voltage_thresholds[i].high);
610 gvar = g_variant_new_tuple(range, 2);
611 g_variant_builder_add_value(&gvb, gvar);
614 for (v = 0.0; v <= 5.0; v += 0.1) {
615 range[0] = g_variant_new_double(v);
616 range[1] = g_variant_new_double(v);
617 gvar = g_variant_new_tuple(range, 2);
618 g_variant_builder_add_value(&gvb, gvar);
621 *data = g_variant_builder_end(&gvb);
623 case SR_CONF_SAMPLERATE:
625 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
626 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), devc->samplerates,
627 devc->num_samplerates, sizeof(uint64_t));
628 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
629 *data = g_variant_builder_end(&gvb);
631 case SR_CONF_CLOCK_EDGE:
632 *data = g_variant_new_strv(signal_edge_names,
633 ARRAY_SIZE(signal_edge_names));
642 static int receive_data(int fd, int revents, void *cb_data)
645 struct drv_context *drvc;
650 drvc = (struct drv_context *)cb_data;
652 tv.tv_sec = tv.tv_usec = 0;
653 libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
658 static int start_transfers(const struct sr_dev_inst *sdi)
660 struct dev_context *devc;
661 struct sr_usb_dev_inst *usb;
662 struct libusb_transfer *transfer;
663 unsigned int i, num_transfers;
671 devc->sent_samples = 0;
672 devc->acq_aborted = FALSE;
673 devc->empty_transfer_count = 0;
674 devc->trigger_fired = TRUE;
676 num_transfers = dslogic_get_number_of_transfers(devc);
678 if (devc->cur_samplerate == SR_MHZ(100))
680 else if (devc->cur_samplerate == SR_MHZ(200))
682 else if (devc->cur_samplerate == SR_MHZ(400))
685 size = dslogic_get_buffer_size(devc);
686 devc->submitted_transfers = 0;
688 devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
689 if (!devc->transfers) {
690 sr_err("USB transfers malloc failed.");
691 return SR_ERR_MALLOC;
694 timeout = dslogic_get_timeout(devc);
695 devc->num_transfers = num_transfers;
696 for (i = 0; i < num_transfers; i++) {
697 if (!(buf = g_try_malloc(size))) {
698 sr_err("USB transfer buffer malloc failed.");
699 return SR_ERR_MALLOC;
701 transfer = libusb_alloc_transfer(0);
702 libusb_fill_bulk_transfer(transfer, usb->devhdl,
703 6 | LIBUSB_ENDPOINT_IN, buf, size,
704 dslogic_receive_transfer, (void *)sdi, timeout);
705 sr_info("submitting transfer: %d", i);
706 if ((ret = libusb_submit_transfer(transfer)) != 0) {
707 sr_err("Failed to submit transfer: %s.",
708 libusb_error_name(ret));
709 libusb_free_transfer(transfer);
711 dslogic_abort_acquisition(devc);
714 devc->transfers[i] = transfer;
715 devc->submitted_transfers++;
718 std_session_send_df_header(sdi);
723 static void LIBUSB_CALL trigger_receive(struct libusb_transfer *transfer)
725 const struct sr_dev_inst *sdi;
726 struct dslogic_trigger_pos *tpos;
727 struct dev_context *devc;
729 sdi = transfer->user_data;
731 if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
732 sr_dbg("Trigger transfer canceled.");
733 /* Terminate session. */
734 std_session_send_df_end(sdi);
735 usb_source_remove(sdi->session, devc->ctx);
736 devc->num_transfers = 0;
737 g_free(devc->transfers);
738 } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED
739 && transfer->actual_length == sizeof(struct dslogic_trigger_pos)) {
740 tpos = (struct dslogic_trigger_pos *)transfer->buffer;
741 sr_info("tpos real_pos %d ram_saddr %d cnt %d", tpos->real_pos,
742 tpos->ram_saddr, tpos->remain_cnt);
743 devc->trigger_pos = tpos->real_pos;
745 start_transfers(sdi);
747 libusb_free_transfer(transfer);
750 static int trigger_request(const struct sr_dev_inst *sdi)
752 struct sr_usb_dev_inst *usb;
753 struct libusb_transfer *transfer;
754 struct dslogic_trigger_pos *tpos;
755 struct dev_context *devc;
761 if ((ret = dslogic_stop_acquisition(sdi)) != SR_OK)
764 if ((ret = dslogic_fpga_configure(sdi)) != SR_OK)
767 if ((ret = dslogic_start_acquisition(sdi)) != SR_OK)
770 sr_dbg("Getting trigger.");
771 tpos = g_malloc(sizeof(struct dslogic_trigger_pos));
772 transfer = libusb_alloc_transfer(0);
773 libusb_fill_bulk_transfer(transfer, usb->devhdl, 6 | LIBUSB_ENDPOINT_IN,
774 (unsigned char *)tpos, sizeof(struct dslogic_trigger_pos),
775 trigger_receive, (void *)sdi, 0);
776 if ((ret = libusb_submit_transfer(transfer)) < 0) {
777 sr_err("Failed to request trigger: %s.", libusb_error_name(ret));
778 libusb_free_transfer(transfer);
783 devc->transfers = g_try_malloc0(sizeof(*devc->transfers));
784 if (!devc->transfers) {
785 sr_err("USB trigger_pos transfer malloc failed.");
786 return SR_ERR_MALLOC;
788 devc->num_transfers = 1;
789 devc->submitted_transfers++;
790 devc->transfers[0] = transfer;
795 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
797 struct sr_dev_driver *di;
798 struct drv_context *drvc;
799 struct dev_context *devc;
802 if (sdi->status != SR_ST_ACTIVE)
803 return SR_ERR_DEV_CLOSED;
809 devc->ctx = drvc->sr_ctx;
810 devc->sent_samples = 0;
811 devc->empty_transfer_count = 0;
812 devc->acq_aborted = FALSE;
814 timeout = dslogic_get_timeout(devc);
815 usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc);
817 trigger_request(sdi);
822 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
824 dslogic_stop_acquisition(sdi);
826 dslogic_abort_acquisition(sdi->priv);
831 static struct sr_dev_driver dslogic_driver_info = {
833 .longname = "DreamSourceLabs DSLogic",
836 .cleanup = std_cleanup,
838 .dev_list = std_dev_list,
839 .dev_clear = dev_clear,
840 .config_get = config_get,
841 .config_set = config_set,
842 .config_list = config_list,
843 .dev_open = dev_open,
844 .dev_close = dev_close,
845 .dev_acquisition_start = dev_acquisition_start,
846 .dev_acquisition_stop = dev_acquisition_stop,
849 SR_REGISTER_DEV_DRIVER(dslogic_driver_info);