2 * This file is part of the sigrok project.
4 * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #include <sys/types.h>
32 #include "libsigrok.h"
33 #include "libsigrok-internal.h"
36 /* Max time in ms before we want to check on USB events */
37 /* TODO tune this properly */
40 static const int32_t devopts[] = {
46 SR_CONF_TRIGGER_SOURCE,
47 SR_CONF_TRIGGER_SLOPE,
48 SR_CONF_HORIZ_TRIGGERPOS,
54 static const char *probe_names[] = {
59 static const uint64_t buffersizes_32k[] = {
62 static const uint64_t buffersizes_512k[] = {
65 static const uint64_t buffersizes_14k[] = {
69 static const struct dso_profile dev_profiles[] = {
70 { 0x04b4, 0x2090, 0x04b5, 0x2090,
73 FIRMWARE_DIR "/hantek-dso-2090.fw" },
74 { 0x04b4, 0x2150, 0x04b5, 0x2150,
77 FIRMWARE_DIR "/hantek-dso-2150.fw" },
78 { 0x04b4, 0x2250, 0x04b5, 0x2250,
81 FIRMWARE_DIR "/hantek-dso-2250.fw" },
82 { 0x04b4, 0x5200, 0x04b5, 0x5200,
85 FIRMWARE_DIR "/hantek-dso-5200.fw" },
86 { 0x04b4, 0x520a, 0x04b5, 0x520a,
87 "Hantek", "DSO-5200A",
89 FIRMWARE_DIR "/hantek-dso-5200A.fw" },
90 { 0, 0, 0, 0, 0, 0, 0, 0 },
93 static const uint64_t timebases[][2] = {
113 static const uint64_t vdivs[][2] = {
127 static const char *trigger_sources[] = {
134 static const char *filter_targets[] = {
137 /* TODO: "TRIGGER", */
140 static const char *coupling[] = {
146 SR_PRIV struct sr_dev_driver hantek_dso_driver_info;
147 static struct sr_dev_driver *di = &hantek_dso_driver_info;
149 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
151 static struct sr_dev_inst *dso_dev_new(int index, const struct dso_profile *prof)
153 struct sr_dev_inst *sdi;
154 struct sr_probe *probe;
155 struct drv_context *drvc;
156 struct dev_context *devc;
159 sdi = sr_dev_inst_new(index, SR_ST_INITIALIZING,
160 prof->vendor, prof->model, NULL);
166 * Add only the real probes -- EXT isn't a source of data, only
167 * a trigger source internal to the device.
169 for (i = 0; probe_names[i]; i++) {
170 if (!(probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE,
173 sdi->probes = g_slist_append(sdi->probes, probe);
176 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
177 sr_err("Device context malloc failed.");
181 devc->profile = prof;
182 devc->dev_state = IDLE;
183 devc->timebase = DEFAULT_TIMEBASE;
184 devc->ch1_enabled = TRUE;
185 devc->ch2_enabled = TRUE;
186 devc->voltage_ch1 = DEFAULT_VOLTAGE;
187 devc->voltage_ch2 = DEFAULT_VOLTAGE;
188 devc->coupling_ch1 = DEFAULT_COUPLING;
189 devc->coupling_ch2 = DEFAULT_COUPLING;
190 devc->voffset_ch1 = DEFAULT_VERT_OFFSET;
191 devc->voffset_ch2 = DEFAULT_VERT_OFFSET;
192 devc->voffset_trigger = DEFAULT_VERT_TRIGGERPOS;
193 devc->framesize = DEFAULT_FRAMESIZE;
194 devc->triggerslope = SLOPE_POSITIVE;
195 devc->triggersource = g_strdup(DEFAULT_TRIGGER_SOURCE);
196 devc->triggerposition = DEFAULT_HORIZ_TRIGGERPOS;
199 drvc->instances = g_slist_append(drvc->instances, sdi);
204 static int configure_probes(const struct sr_dev_inst *sdi)
206 struct dev_context *devc;
207 struct sr_probe *probe;
213 g_slist_free(devc->enabled_probes);
214 devc->ch1_enabled = devc->ch2_enabled = FALSE;
215 for (l = sdi->probes, p = 0; l; l = l->next, p++) {
218 devc->ch1_enabled = probe->enabled;
220 devc->ch2_enabled = probe->enabled;
222 devc->enabled_probes = g_slist_append(devc->enabled_probes, probe);
228 /* Properly close and free all devices. */
229 static int clear_instances(void)
231 struct sr_dev_inst *sdi;
232 struct drv_context *drvc;
233 struct dev_context *devc;
237 for (l = drvc->instances; l; l = l->next) {
238 if (!(sdi = l->data)) {
239 /* Log error, but continue cleaning up the rest. */
240 sr_err("%s: sdi was NULL, continuing", __func__);
243 if (!(devc = sdi->priv)) {
244 /* Log error, but continue cleaning up the rest. */
245 sr_err("%s: sdi->priv was NULL, continuing", __func__);
249 sr_usb_dev_inst_free(devc->usb);
250 g_free(devc->triggersource);
251 g_slist_free(devc->enabled_probes);
253 sr_dev_inst_free(sdi);
256 g_slist_free(drvc->instances);
257 drvc->instances = NULL;
262 static int hw_init(struct sr_context *sr_ctx)
264 return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN);
267 static GSList *hw_scan(GSList *options)
269 struct sr_dev_inst *sdi;
270 const struct dso_profile *prof;
271 struct drv_context *drvc;
272 struct dev_context *devc;
274 struct libusb_device_descriptor des;
275 libusb_device **devlist;
276 int devcnt, ret, i, j;
281 drvc->instances = NULL;
288 /* Find all Hantek DSO devices and upload firmware to all of them. */
289 libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
290 for (i = 0; devlist[i]; i++) {
291 if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
292 sr_err("Failed to get device descriptor: %s.",
293 libusb_error_name(ret));
298 for (j = 0; dev_profiles[j].orig_vid; j++) {
299 if (des.idVendor == dev_profiles[j].orig_vid
300 && des.idProduct == dev_profiles[j].orig_pid) {
301 /* Device matches the pre-firmware profile. */
302 prof = &dev_profiles[j];
303 sr_dbg("Found a %s %s.", prof->vendor, prof->model);
304 sdi = dso_dev_new(devcnt, prof);
305 devices = g_slist_append(devices, sdi);
307 if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION,
308 prof->firmware) == SR_OK)
309 /* Remember when the firmware on this device was updated */
310 devc->fw_updated = g_get_monotonic_time();
312 sr_err("Firmware upload failed for "
313 "device %d.", devcnt);
314 /* Dummy USB address of 0xff will get overwritten later. */
315 devc->usb = sr_usb_dev_inst_new(
316 libusb_get_bus_number(devlist[i]), 0xff, NULL);
319 } else if (des.idVendor == dev_profiles[j].fw_vid
320 && des.idProduct == dev_profiles[j].fw_pid) {
321 /* Device matches the post-firmware profile. */
322 prof = &dev_profiles[j];
323 sr_dbg("Found a %s %s.", prof->vendor, prof->model);
324 sdi = dso_dev_new(devcnt, prof);
325 sdi->status = SR_ST_INACTIVE;
326 devices = g_slist_append(devices, sdi);
328 devc->usb = sr_usb_dev_inst_new(
329 libusb_get_bus_number(devlist[i]),
330 libusb_get_device_address(devlist[i]), NULL);
336 /* not a supported VID/PID */
339 libusb_free_device_list(devlist, 1);
344 static GSList *hw_dev_list(void)
346 return ((struct drv_context *)(di->priv))->instances;
349 static int hw_dev_open(struct sr_dev_inst *sdi)
351 struct dev_context *devc;
352 int64_t timediff_us, timediff_ms;
358 * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
359 * for the FX2 to renumerate.
362 if (devc->fw_updated > 0) {
363 sr_info("Waiting for device to reset.");
364 /* Takes >= 300ms for the FX2 to be gone from the USB bus. */
365 g_usleep(300 * 1000);
367 while (timediff_ms < MAX_RENUM_DELAY_MS) {
368 if ((err = dso_open(sdi)) == SR_OK)
370 g_usleep(100 * 1000);
371 timediff_us = g_get_monotonic_time() - devc->fw_updated;
372 timediff_ms = timediff_us / 1000;
373 sr_spew("Waited %" PRIi64 " ms.", timediff_ms);
375 sr_info("Device came back after %d ms.", timediff_ms);
381 sr_err("Unable to open device.");
385 err = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE);
387 sr_err("Unable to claim interface: %s.",
388 libusb_error_name(err));
395 static int hw_dev_close(struct sr_dev_inst *sdi)
402 static int hw_cleanup(void)
404 struct drv_context *drvc;
406 if (!(drvc = di->priv))
414 static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
416 struct dev_context *devc;
418 uint64_t tmp_u64, p, q;
424 if (sdi->status != SR_ST_ACTIVE)
430 case SR_CONF_LIMIT_FRAMES:
431 devc->limit_frames = g_variant_get_uint64(data);
433 case SR_CONF_TRIGGER_SLOPE:
434 tmp_u64 = g_variant_get_uint64(data);
435 if (tmp_u64 != SLOPE_NEGATIVE && tmp_u64 != SLOPE_POSITIVE)
437 devc->triggerslope = tmp_u64;
439 case SR_CONF_HORIZ_TRIGGERPOS:
440 tmp_double = g_variant_get_double(data);
441 if (tmp_double < 0.0 || tmp_double > 1.0) {
442 sr_err("Trigger position should be between 0.0 and 1.0.");
445 devc->triggerposition = tmp_double;
447 case SR_CONF_BUFFERSIZE:
448 tmp_u64 = g_variant_get_uint64(data);
449 for (i = 0; i < 2; i++) {
450 if (devc->profile->buffersizes[i] == tmp_u64) {
451 devc->framesize = tmp_u64;
458 case SR_CONF_TIMEBASE:
459 g_variant_get(data, "(tt)", &p, &q);
461 for (i = 0; i < ARRAY_SIZE(timebases); i++) {
462 if (timebases[i][0] == p && timebases[i][1] == q) {
468 devc->timebase = tmp_int;
472 case SR_CONF_TRIGGER_SOURCE:
473 tmp_str = g_variant_get_string(data, NULL);
474 for (i = 0; trigger_sources[i]; i++) {
475 if (!strcmp(tmp_str, trigger_sources[i])) {
476 devc->triggersource = g_strdup(tmp_str);
480 if (trigger_sources[i] == 0)
484 tmp_str = g_variant_get_string(data, NULL);
485 devc->filter_ch1 = devc->filter_ch2 = devc->filter_trigger = 0;
486 targets = g_strsplit(tmp_str, ",", 0);
487 for (i = 0; targets[i]; i++) {
488 if (targets[i] == '\0')
489 /* Empty filter string can be used to clear them all. */
491 else if (!strcmp(targets[i], "CH1"))
492 devc->filter_ch1 = TRUE;
493 else if (!strcmp(targets[i], "CH2"))
494 devc->filter_ch2 = TRUE;
495 else if (!strcmp(targets[i], "TRIGGER"))
496 devc->filter_trigger = TRUE;
498 sr_err("Invalid filter target %s.", targets[i]);
505 /* TODO: Not supporting vdiv per channel yet. */
506 g_variant_get(data, "(tt)", &p, &q);
508 for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
509 if (vdivs[i][0] == p && vdivs[i][1] == q) {
515 devc->voltage_ch1 = tmp_int;
516 devc->voltage_ch2 = tmp_int;
520 case SR_CONF_COUPLING:
521 tmp_str = g_variant_get_string(data, NULL);
522 /* TODO: Not supporting coupling per channel yet. */
523 for (i = 0; coupling[i]; i++) {
524 if (!strcmp(tmp_str, coupling[i])) {
525 devc->coupling_ch1 = i;
526 devc->coupling_ch2 = i;
530 if (coupling[i] == 0)
541 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
543 struct dev_context *devc;
544 GVariant *tuple, *rational[2];
555 case SR_CONF_DEVICE_OPTIONS:
556 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
557 devopts, ARRAY_SIZE(devopts), sizeof(int32_t));
559 case SR_CONF_BUFFERSIZE:
560 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT64,
561 devc->profile->buffersizes, 2, sizeof(uint64_t));
563 case SR_CONF_COUPLING:
564 *data = g_variant_new_strv(coupling, ARRAY_SIZE(coupling));
567 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
568 for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
569 rational[0] = g_variant_new_uint64(vdivs[i][0]);
570 rational[1] = g_variant_new_uint64(vdivs[i][1]);
571 tuple = g_variant_new_tuple(rational, 2);
572 g_variant_builder_add_value(&gvb, tuple);
574 *data = g_variant_builder_end(&gvb);
577 *data = g_variant_new_strv(filter_targets,
578 ARRAY_SIZE(filter_targets));
580 case SR_CONF_TIMEBASE:
581 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
582 for (i = 0; i < ARRAY_SIZE(timebases); i++) {
583 rational[0] = g_variant_new_uint64(timebases[i][0]);
584 rational[1] = g_variant_new_uint64(timebases[i][1]);
585 tuple = g_variant_new_tuple(rational, 2);
586 g_variant_builder_add_value(&gvb, tuple);
588 *data = g_variant_builder_end(&gvb);
590 case SR_CONF_TRIGGER_SOURCE:
591 *data = g_variant_new_strv(trigger_sources,
592 ARRAY_SIZE(trigger_sources));
601 static void send_chunk(struct sr_dev_inst *sdi, unsigned char *buf,
604 struct sr_datafeed_packet packet;
605 struct sr_datafeed_analog analog;
606 struct dev_context *devc;
607 float ch1, ch2, range;
608 int num_probes, data_offset, i;
611 num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1;
612 packet.type = SR_DF_ANALOG;
613 packet.payload = &analog;
614 /* TODO: support for 5xxx series 9-bit samples */
615 analog.probes = devc->enabled_probes;
616 analog.num_samples = num_samples;
617 analog.mq = SR_MQ_VOLTAGE;
618 analog.unit = SR_UNIT_VOLT;
619 /* TODO: Check malloc return value. */
620 analog.data = g_try_malloc(analog.num_samples * sizeof(float) * num_probes);
622 for (i = 0; i < analog.num_samples; i++) {
624 * The device always sends data for both channels. If a channel
625 * is disabled, it contains a copy of the enabled channel's
626 * data. However, we only send the requested channels to
629 * Voltage values are encoded as a value 0-255 (0-512 on the
630 * DSO-5200*), where the value is a point in the range
631 * represented by the vdiv setting. There are 8 vertical divs,
632 * so e.g. 500mV/div represents 4V peak-to-peak where 0 = -2V
635 /* TODO: Support for DSO-5xxx series 9-bit samples. */
636 if (devc->ch1_enabled) {
637 range = ((float)vdivs[devc->voltage_ch1][0] / vdivs[devc->voltage_ch1][1]) * 8;
638 ch1 = range / 255 * *(buf + i * 2 + 1);
639 /* Value is centered around 0V. */
641 analog.data[data_offset++] = ch1;
643 if (devc->ch2_enabled) {
644 range = ((float)vdivs[devc->voltage_ch2][0] / vdivs[devc->voltage_ch2][1]) * 8;
645 ch2 = range / 255 * *(buf + i * 2);
647 analog.data[data_offset++] = ch2;
650 sr_session_send(devc->cb_data, &packet);
654 * Called by libusb (as triggered by handle_event()) when a transfer comes in.
655 * Only channel data comes in asynchronously, and all transfers for this are
656 * queued up beforehand, so this just needs to chuck the incoming data onto
657 * the libsigrok session bus.
659 static void receive_transfer(struct libusb_transfer *transfer)
661 struct sr_datafeed_packet packet;
662 struct sr_dev_inst *sdi;
663 struct dev_context *devc;
664 int num_samples, pre;
666 sdi = transfer->user_data;
668 sr_spew("receive_transfer(): status %d received %d bytes.",
669 transfer->status, transfer->actual_length);
671 if (transfer->actual_length == 0)
672 /* Nothing to send to the bus. */
675 num_samples = transfer->actual_length / 2;
677 sr_spew("Got %d-%d/%d samples in frame.", devc->samp_received + 1,
678 devc->samp_received + num_samples, devc->framesize);
681 * The device always sends a full frame, but the beginning of the frame
682 * doesn't represent the trigger point. The offset at which the trigger
683 * happened came in with the capture state, so we need to start sending
684 * from there up the session bus. The samples in the frame buffer
685 * before that trigger point came after the end of the device's frame
686 * buffer was reached, and it wrapped around to overwrite up until the
689 if (devc->samp_received < devc->trigger_offset) {
690 /* Trigger point not yet reached. */
691 if (devc->samp_received + num_samples < devc->trigger_offset) {
692 /* The entire chunk is before the trigger point. */
693 memcpy(devc->framebuf + devc->samp_buffered * 2,
694 transfer->buffer, num_samples * 2);
695 devc->samp_buffered += num_samples;
698 * This chunk hits or overruns the trigger point.
699 * Store the part before the trigger fired, and
700 * send the rest up to the session bus.
702 pre = devc->trigger_offset - devc->samp_received;
703 memcpy(devc->framebuf + devc->samp_buffered * 2,
704 transfer->buffer, pre * 2);
705 devc->samp_buffered += pre;
707 /* The rest of this chunk starts with the trigger point. */
708 sr_dbg("Reached trigger point, %d samples buffered.",
709 devc->samp_buffered);
711 /* Avoid the corner case where the chunk ended at
712 * exactly the trigger point. */
713 if (num_samples > pre)
714 send_chunk(sdi, transfer->buffer + pre * 2,
718 /* Already past the trigger point, just send it all out. */
719 send_chunk(sdi, transfer->buffer,
723 devc->samp_received += num_samples;
725 /* Everything in this transfer was either copied to the buffer or
726 * sent to the session bus. */
727 g_free(transfer->buffer);
728 libusb_free_transfer(transfer);
730 if (devc->samp_received >= devc->framesize) {
731 /* That was the last chunk in this frame. Send the buffered
732 * pre-trigger samples out now, in one big chunk. */
733 sr_dbg("End of frame, sending %d pre-trigger buffered samples.",
734 devc->samp_buffered);
735 send_chunk(sdi, devc->framebuf, devc->samp_buffered);
737 /* Mark the end of this frame. */
738 packet.type = SR_DF_FRAME_END;
739 sr_session_send(devc->cb_data, &packet);
741 if (devc->limit_frames && ++devc->num_frames == devc->limit_frames) {
742 /* Terminate session */
743 devc->dev_state = STOPPING;
745 devc->dev_state = NEW_CAPTURE;
750 static int handle_event(int fd, int revents, void *cb_data)
752 const struct sr_dev_inst *sdi;
753 struct sr_datafeed_packet packet;
755 struct dev_context *devc;
756 struct drv_context *drvc = di->priv;
757 const struct libusb_pollfd **lupfd;
759 uint32_t trigger_offset;
760 uint8_t capturestate;
767 if (devc->dev_state == STOPPING) {
768 /* We've been told to wind up the acquisition. */
769 sr_dbg("Stopping acquisition.");
771 * TODO: Doesn't really cancel pending transfers so they might
772 * come in after SR_DF_END is sent.
774 lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
775 for (i = 0; lupfd[i]; i++)
776 sr_source_remove(lupfd[i]->fd);
779 packet.type = SR_DF_END;
780 sr_session_send(sdi, &packet);
782 devc->dev_state = IDLE;
787 /* Always handle pending libusb events. */
788 tv.tv_sec = tv.tv_usec = 0;
789 libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
792 if (devc->dev_state == NEW_CAPTURE) {
793 if (dso_capture_start(devc) != SR_OK)
795 if (dso_enable_trigger(devc) != SR_OK)
797 // if (dso_force_trigger(devc) != SR_OK)
799 sr_dbg("Successfully requested next chunk.");
800 devc->dev_state = CAPTURE;
803 if (devc->dev_state != CAPTURE)
806 if ((dso_get_capturestate(devc, &capturestate, &trigger_offset)) != SR_OK)
809 sr_dbg("Capturestate %d.", capturestate);
810 sr_dbg("Trigger offset 0x%.6x.", trigger_offset);
811 switch (capturestate) {
813 if (++devc->capture_empty_count >= MAX_CAPTURE_EMPTY) {
814 devc->capture_empty_count = 0;
815 if (dso_capture_start(devc) != SR_OK)
817 if (dso_enable_trigger(devc) != SR_OK)
819 // if (dso_force_trigger(devc) != SR_OK)
821 sr_dbg("Successfully requested next chunk.");
824 case CAPTURE_FILLING:
827 case CAPTURE_READY_8BIT:
828 /* Remember where in the captured frame the trigger is. */
829 devc->trigger_offset = trigger_offset;
831 num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1;
832 /* TODO: Check malloc return value. */
833 devc->framebuf = g_try_malloc(devc->framesize * num_probes * 2);
834 devc->samp_buffered = devc->samp_received = 0;
836 /* Tell the scope to send us the first frame. */
837 if (dso_get_channeldata(sdi, receive_transfer) != SR_OK)
841 * Don't hit the state machine again until we're done fetching
842 * the data we just told the scope to send.
844 devc->dev_state = FETCH_DATA;
846 /* Tell the frontend a new frame is on the way. */
847 packet.type = SR_DF_FRAME_BEGIN;
848 sr_session_send(sdi, &packet);
850 case CAPTURE_READY_9BIT:
852 sr_err("Not yet supported.");
854 case CAPTURE_TIMEOUT:
855 /* Doesn't matter, we'll try again next time. */
858 sr_dbg("Unknown capture state: %d.", capturestate);
865 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
868 const struct libusb_pollfd **lupfd;
869 struct dev_context *devc;
870 struct drv_context *drvc = di->priv;
873 if (sdi->status != SR_ST_ACTIVE)
877 devc->cb_data = cb_data;
879 if (configure_probes(sdi) != SR_OK) {
880 sr_err("Failed to configure probes.");
884 if (dso_init(devc) != SR_OK)
887 if (dso_capture_start(devc) != SR_OK)
890 devc->dev_state = CAPTURE;
891 lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
892 for (i = 0; lupfd[i]; i++)
893 sr_source_add(lupfd[i]->fd, lupfd[i]->events, TICK,
894 handle_event, (void *)sdi);
897 /* Send header packet to the session bus. */
898 std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
903 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
905 struct dev_context *devc;
909 if (sdi->status != SR_ST_ACTIVE)
913 devc->dev_state = STOPPING;
918 SR_PRIV struct sr_dev_driver hantek_dso_driver_info = {
919 .name = "hantek-dso",
920 .longname = "Hantek DSO",
923 .cleanup = hw_cleanup,
925 .dev_list = hw_dev_list,
926 .dev_clear = clear_instances,
928 .config_set = config_set,
929 .config_list = config_list,
930 .dev_open = hw_dev_open,
931 .dev_close = hw_dev_close,
932 .dev_acquisition_start = hw_dev_acquisition_start,
933 .dev_acquisition_stop = hw_dev_acquisition_stop,