X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fhantek-dso%2Fapi.c;h=cdc4360e9a40b440099ae86e7ada37b46b63edcf;hb=697fb6ddfc2522b2e6d35511c7837e2c61d8ae73;hp=ddea80846f80011f5e45257b2a0409bfcdbfdf31;hpb=c01bf34ca264b268fee2e71ab918c71d28dc3018;p=libsigrok.git diff --git a/src/hardware/hantek-dso/api.c b/src/hardware/hantek-dso/api.c index ddea8084..cdc4360e 100644 --- a/src/hardware/hantek-dso/api.c +++ b/src/hardware/hantek-dso/api.c @@ -18,6 +18,7 @@ */ #include +#include #include #include #include @@ -32,14 +33,14 @@ #include #include #include "libsigrok-internal.h" -#include "dso.h" +#include "protocol.h" /* Max time in ms before we want to check on USB events */ /* TODO tune this properly */ #define TICK 1 -#define NUM_TIMEBASE 10 -#define NUM_VDIV 8 +#define NUM_TIMEBASE 10 +#define NUM_VDIV 8 #define NUM_BUFFER_SIZES 2 @@ -52,22 +53,22 @@ static const uint32_t drvopts[] = { }; static const uint32_t devopts[] = { - SR_CONF_CONTINUOUS | SR_CONF_SET, - SR_CONF_LIMIT_FRAMES | SR_CONF_SET, + SR_CONF_CONTINUOUS, SR_CONF_CONN | SR_CONF_GET, + SR_CONF_LIMIT_FRAMES | SR_CONF_SET, SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, - SR_CONF_BUFFERSIZE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, + SR_CONF_NUM_HDIV | SR_CONF_GET, + SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_GET | SR_CONF_SET, SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET, - SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_GET | SR_CONF_SET, - SR_CONF_NUM_HDIV | SR_CONF_GET, + SR_CONF_BUFFERSIZE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, SR_CONF_NUM_VDIV | SR_CONF_GET, }; static const uint32_t devopts_cg[] = { - SR_CONF_FILTER | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, + SR_CONF_FILTER | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, }; static const char *channel_names[] = { @@ -143,33 +144,23 @@ static const uint64_t vdivs[][2] = { }; static const char *trigger_sources[] = { - "CH1", - "CH2", - "EXT", + "CH1", "CH2", "EXT", /* TODO: forced */ }; static const char *trigger_slopes[] = { - "r", - "f", + "r", "f", }; static const char *coupling[] = { - "AC", - "DC", - "GND", + "AC", "DC", "GND", }; -SR_PRIV struct sr_dev_driver hantek_dso_driver_info; - -static int dev_acquisition_stop(struct sr_dev_inst *sdi); - static struct sr_dev_inst *dso_dev_new(const struct dso_profile *prof) { struct sr_dev_inst *sdi; struct sr_channel *ch; struct sr_channel_group *cg; - struct drv_context *drvc; struct dev_context *devc; unsigned int i; @@ -177,7 +168,6 @@ static struct sr_dev_inst *dso_dev_new(const struct dso_profile *prof) sdi->status = SR_ST_INITIALIZING; sdi->vendor = g_strdup(prof->vendor); sdi->model = g_strdup(prof->model); - sdi->driver = &hantek_dso_driver_info; /* * Add only the real channels -- EXT isn't a source of data, only @@ -195,8 +185,8 @@ static struct sr_dev_inst *dso_dev_new(const struct dso_profile *prof) devc->profile = prof; devc->dev_state = IDLE; devc->timebase = DEFAULT_TIMEBASE; - devc->ch1_enabled = TRUE; - devc->ch2_enabled = TRUE; + devc->ch_enabled[0] = TRUE; + devc->ch_enabled[1] = TRUE; devc->voltage[0] = DEFAULT_VOLTAGE; devc->voltage[1] = DEFAULT_VOLTAGE; devc->coupling[0] = DEFAULT_COUPLING; @@ -209,8 +199,6 @@ static struct sr_dev_inst *dso_dev_new(const struct dso_profile *prof) devc->triggersource = g_strdup(DEFAULT_TRIGGER_SOURCE); devc->triggerposition = DEFAULT_HORIZ_TRIGGERPOS; sdi->priv = devc; - drvc = hantek_dso_driver_info.context; - drvc->instances = g_slist_append(drvc->instances, sdi); return sdi; } @@ -225,13 +213,13 @@ static int configure_channels(const struct sr_dev_inst *sdi) devc = sdi->priv; g_slist_free(devc->enabled_channels); - devc->ch1_enabled = devc->ch2_enabled = FALSE; + devc->ch_enabled[0] = devc->ch_enabled[1] = FALSE; for (l = sdi->channels, p = 0; l; l = l->next, p++) { ch = l->data; if (p == 0) - devc->ch1_enabled = ch->enabled; + devc->ch_enabled[0] = ch->enabled; else - devc->ch2_enabled = ch->enabled; + devc->ch_enabled[1] = ch->enabled; if (ch->enabled) devc->enabled_channels = g_slist_append(devc->enabled_channels, ch); } @@ -239,24 +227,15 @@ static int configure_channels(const struct sr_dev_inst *sdi) return SR_OK; } -static void clear_dev_context(void *priv) +static void clear_helper(struct dev_context *devc) { - struct dev_context *devc; - - devc = priv; g_free(devc->triggersource); g_slist_free(devc->enabled_channels); - } static int dev_clear(const struct sr_dev_driver *di) { - return std_dev_clear(di, clear_dev_context); -} - -static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) -{ - return std_init(sr_ctx, di, LOG_PREFIX); + return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper); } static GSList *scan(struct sr_dev_driver *di, GSList *options) @@ -355,7 +334,7 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options) } libusb_free_device_list(devlist, 1); - return devices; + return std_scan_complete(di, devices); } static int dev_open(struct sr_dev_inst *sdi) @@ -399,7 +378,7 @@ static int dev_open(struct sr_dev_inst *sdi) err = libusb_claim_interface(usb->devhdl, USB_INTERFACE); if (err != 0) { sr_err("Unable to claim interface: %s.", - libusb_error_name(err)); + libusb_error_name(err)); return SR_ERR; } @@ -413,12 +392,11 @@ static int dev_close(struct sr_dev_inst *sdi) return SR_OK; } -static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, - const struct sr_channel_group *cg) +static int config_get(uint32_t key, GVariant **data, + const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { struct dev_context *devc; struct sr_usb_dev_inst *usb; - char str[128]; const char *s; const uint64_t *vdiv; int ch_idx; @@ -446,8 +424,7 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s /* Device still needs to re-enumerate after firmware * upload, so we don't know its (future) address. */ return SR_ERR; - snprintf(str, 128, "%d.%d", usb->bus, usb->address); - *data = g_variant_new_string(str); + *data = g_variant_new_printf("%d.%d", usb->bus, usb->address); break; case SR_CONF_TIMEBASE: *data = g_variant_new("(tt)", timebases[devc->timebase][0], @@ -493,20 +470,13 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s return SR_OK; } -static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, - const struct sr_channel_group *cg) +static int config_set(uint32_t key, GVariant *data, + const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { struct dev_context *devc; double tmp_double; - uint64_t tmp_u64, p, q; - int tmp_int, ch_idx, ret; - unsigned int i; - const char *tmp_str; - - if (sdi->status != SR_ST_ACTIVE) - return SR_ERR_DEV_CLOSED; + int ch_idx, idx; - ret = SR_OK; devc = sdi->priv; if (!cg) { switch (key) { @@ -514,59 +484,36 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd devc->limit_frames = g_variant_get_uint64(data); break; case SR_CONF_TRIGGER_SLOPE: - tmp_str = g_variant_get_string(data, NULL); - if (!tmp_str || !(tmp_str[0] == 'f' || tmp_str[0] == 'r')) + if ((idx = std_str_idx(data, ARRAY_AND_SIZE(trigger_slopes))) < 0) return SR_ERR_ARG; - devc->triggerslope = (tmp_str[0] == 'r') + devc->triggerslope = (trigger_slopes[idx][0] == 'r') ? SLOPE_POSITIVE : SLOPE_NEGATIVE; break; case SR_CONF_HORIZ_TRIGGERPOS: tmp_double = g_variant_get_double(data); if (tmp_double < 0.0 || tmp_double > 1.0) { sr_err("Trigger position should be between 0.0 and 1.0."); - ret = SR_ERR_ARG; + return SR_ERR_ARG; } else devc->triggerposition = tmp_double; break; case SR_CONF_BUFFERSIZE: - tmp_u64 = g_variant_get_uint64(data); - for (i = 0; i < NUM_BUFFER_SIZES; i++) { - if (devc->profile->buffersizes[i] == tmp_u64) { - devc->framesize = tmp_u64; - break; - } - } - if (i == NUM_BUFFER_SIZES) - ret = SR_ERR_ARG; + if ((idx = std_u64_idx(data, devc->profile->buffersizes, NUM_BUFFER_SIZES)) < 0) + return SR_ERR_ARG; + devc->framesize = devc->profile->buffersizes[idx]; break; case SR_CONF_TIMEBASE: - g_variant_get(data, "(tt)", &p, &q); - tmp_int = -1; - for (i = 0; i < ARRAY_SIZE(timebases); i++) { - if (timebases[i][0] == p && timebases[i][1] == q) { - tmp_int = i; - break; - } - } - if (tmp_int >= 0) - devc->timebase = tmp_int; - else - ret = SR_ERR_ARG; + if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(timebases))) < 0) + return SR_ERR_ARG; + devc->timebase = idx; break; case SR_CONF_TRIGGER_SOURCE: - tmp_str = g_variant_get_string(data, NULL); - for (i = 0; trigger_sources[i]; i++) { - if (!strcmp(tmp_str, trigger_sources[i])) { - devc->triggersource = g_strdup(tmp_str); - break; - } - } - if (trigger_sources[i] == 0) - ret = SR_ERR_ARG; + if ((idx = std_str_idx(data, ARRAY_AND_SIZE(trigger_sources))) < 0) + return SR_ERR_ARG; + devc->triggersource = g_strdup(trigger_sources[idx]); break; default: - ret = SR_ERR_NA; - break; + return SR_ERR_NA; } } else { if (sdi->channel_groups->data == cg) @@ -580,90 +527,47 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd devc->filter[ch_idx] = g_variant_get_boolean(data); break; case SR_CONF_VDIV: - g_variant_get(data, "(tt)", &p, &q); - tmp_int = -1; - for (i = 0; i < ARRAY_SIZE(vdivs); i++) { - if (vdivs[i][0] == p && vdivs[i][1] == q) { - tmp_int = i; - break; - } - } - if (tmp_int >= 0) { - devc->voltage[ch_idx] = tmp_int; - } else - ret = SR_ERR_ARG; + if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(vdivs))) < 0) + return SR_ERR_ARG; + devc->voltage[ch_idx] = idx; break; case SR_CONF_COUPLING: - tmp_str = g_variant_get_string(data, NULL); - for (i = 0; coupling[i]; i++) { - if (!strcmp(tmp_str, coupling[i])) { - devc->coupling[ch_idx] = i; - break; - } - } - if (coupling[i] == 0) - ret = SR_ERR_ARG; + if ((idx = std_str_idx(data, ARRAY_AND_SIZE(coupling))) < 0) + return SR_ERR_ARG; + devc->coupling[ch_idx] = idx; break; default: - ret = SR_ERR_NA; - break; + return SR_ERR_NA; } } - return ret; + return SR_OK; } -static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, - const struct sr_channel_group *cg) +static int config_list(uint32_t key, GVariant **data, + const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { struct dev_context *devc; - GVariant *tuple, *rational[2]; - GVariantBuilder gvb; - unsigned int i; - - if (key == SR_CONF_SCAN_OPTIONS) { - *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, - scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); - return SR_OK; - } else if (key == SR_CONF_DEVICE_OPTIONS && !sdi) { - *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, - drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); - return SR_OK; - } - - if (!sdi) - return SR_ERR_ARG; if (!cg) { switch (key) { + case SR_CONF_SCAN_OPTIONS: case SR_CONF_DEVICE_OPTIONS: - *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, - devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); - break; + return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); case SR_CONF_BUFFERSIZE: if (!sdi) return SR_ERR_ARG; devc = sdi->priv; - *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT64, - devc->profile->buffersizes, NUM_BUFFER_SIZES, sizeof(uint64_t)); + *data = std_gvar_array_u64(devc->profile->buffersizes, NUM_BUFFER_SIZES); break; case SR_CONF_TIMEBASE: - g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); - for (i = 0; i < ARRAY_SIZE(timebases); i++) { - rational[0] = g_variant_new_uint64(timebases[i][0]); - rational[1] = g_variant_new_uint64(timebases[i][1]); - tuple = g_variant_new_tuple(rational, 2); - g_variant_builder_add_value(&gvb, tuple); - } - *data = g_variant_builder_end(&gvb); + *data = std_gvar_tuple_array(ARRAY_AND_SIZE(timebases)); break; case SR_CONF_TRIGGER_SOURCE: - *data = g_variant_new_strv(trigger_sources, - ARRAY_SIZE(trigger_sources)); + *data = g_variant_new_strv(ARRAY_AND_SIZE(trigger_sources)); break; case SR_CONF_TRIGGER_SLOPE: - *data = g_variant_new_strv(trigger_slopes, - ARRAY_SIZE(trigger_slopes)); + *data = g_variant_new_strv(ARRAY_AND_SIZE(trigger_slopes)); break; default: return SR_ERR_NA; @@ -671,21 +575,13 @@ static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst * } else { switch (key) { case SR_CONF_DEVICE_OPTIONS: - *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, - devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t)); + *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg)); break; case SR_CONF_COUPLING: - *data = g_variant_new_strv(coupling, ARRAY_SIZE(coupling)); + *data = g_variant_new_strv(ARRAY_AND_SIZE(coupling)); break; case SR_CONF_VDIV: - g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); - for (i = 0; i < ARRAY_SIZE(vdivs); i++) { - rational[0] = g_variant_new_uint64(vdivs[i][0]); - rational[1] = g_variant_new_uint64(vdivs[i][1]); - tuple = g_variant_new_tuple(rational, 2); - g_variant_builder_add_value(&gvb, tuple); - } - *data = g_variant_builder_end(&gvb); + *data = std_gvar_tuple_array(ARRAY_AND_SIZE(vdivs)); break; default: return SR_ERR_NA; @@ -699,53 +595,56 @@ static void send_chunk(struct sr_dev_inst *sdi, unsigned char *buf, int num_samples) { struct sr_datafeed_packet packet; - struct sr_datafeed_analog_old analog; - struct dev_context *devc; - float ch1, ch2, range; - int num_channels, data_offset, i; - - devc = sdi->priv; - num_channels = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; - packet.type = SR_DF_ANALOG_OLD; + struct sr_datafeed_analog analog; + struct sr_analog_encoding encoding; + struct sr_analog_meaning meaning; + struct sr_analog_spec spec; + struct dev_context *devc = sdi->priv; + GSList *channels = devc->enabled_channels; + + packet.type = SR_DF_ANALOG; packet.payload = &analog; /* TODO: support for 5xxx series 9-bit samples */ - analog.channels = devc->enabled_channels; + sr_analog_init(&analog, &encoding, &meaning, &spec, 0); analog.num_samples = num_samples; - analog.mq = SR_MQ_VOLTAGE; - analog.unit = SR_UNIT_VOLT; - analog.mqflags = 0; + analog.meaning->mq = SR_MQ_VOLTAGE; + analog.meaning->unit = SR_UNIT_VOLT; + analog.meaning->mqflags = 0; /* TODO: Check malloc return value. */ - analog.data = g_try_malloc(analog.num_samples * sizeof(float) * num_channels); - data_offset = 0; - for (i = 0; i < analog.num_samples; i++) { - /* - * The device always sends data for both channels. If a channel - * is disabled, it contains a copy of the enabled channel's - * data. However, we only send the requested channels to - * the bus. - * - * Voltage values are encoded as a value 0-255 (0-512 on the - * DSO-5200*), where the value is a point in the range - * represented by the vdiv setting. There are 8 vertical divs, - * so e.g. 500mV/div represents 4V peak-to-peak where 0 = -2V - * and 255 = +2V. - */ - /* TODO: Support for DSO-5xxx series 9-bit samples. */ - if (devc->ch1_enabled) { - range = ((float)vdivs[devc->voltage[0]][0] / vdivs[devc->voltage[0]][1]) * 8; - ch1 = range / 255 * *(buf + i * 2 + 1); - /* Value is centered around 0V. */ - ch1 -= range / 2; - analog.data[data_offset++] = ch1; - } - if (devc->ch2_enabled) { - range = ((float)vdivs[devc->voltage[1]][0] / vdivs[devc->voltage[1]][1]) * 8; - ch2 = range / 255 * *(buf + i * 2); - ch2 -= range / 2; - analog.data[data_offset++] = ch2; + analog.data = g_try_malloc(num_samples * sizeof(float)); + + for (int ch = 0; ch < 2; ch++) { + if (!devc->ch_enabled[ch]) + continue; + + float range = ((float)vdivs[devc->voltage[ch]][0] / vdivs[devc->voltage[ch]][1]) * 8; + float vdivlog = log10f(range / 255); + int digits = -(int)vdivlog + (vdivlog < 0.0); + analog.encoding->digits = digits; + analog.spec->spec_digits = digits; + analog.meaning->channels = g_slist_append(NULL, channels->data); + + for (int i = 0; i < num_samples; i++) { + /* + * The device always sends data for both channels. If a channel + * is disabled, it contains a copy of the enabled channel's + * data. However, we only send the requested channels to + * the bus. + * + * Voltage values are encoded as a value 0-255 (0-512 on the + * DSO-5200*), where the value is a point in the range + * represented by the vdiv setting. There are 8 vertical divs, + * so e.g. 500mV/div represents 4V peak-to-peak where 0 = -2V + * and 255 = +2V. + */ + /* TODO: Support for DSO-5xxx series 9-bit samples. */ + ((float *)analog.data)[i] = range / 255 * *(buf + i * 2 + 1 - ch) - range / 2; } + sr_session_send(sdi, &packet); + g_slist_free(analog.meaning->channels); + + channels = channels->next; } - sr_session_send(sdi, &packet); g_free(analog.data); } @@ -774,7 +673,7 @@ static void LIBUSB_CALL receive_transfer(struct libusb_transfer *transfer) num_samples = transfer->actual_length / 2; sr_spew("Got %d-%d/%d samples in frame.", devc->samp_received + 1, - devc->samp_received + num_samples, devc->framesize); + devc->samp_received + num_samples, devc->framesize); /* * The device always sends a full frame, but the beginning of the frame @@ -805,7 +704,7 @@ static void LIBUSB_CALL receive_transfer(struct libusb_transfer *transfer) /* The rest of this chunk starts with the trigger point. */ sr_dbg("Reached trigger point, %d samples buffered.", - devc->samp_buffered); + devc->samp_buffered); /* Avoid the corner case where the chunk ended at * exactly the trigger point. */ @@ -829,7 +728,7 @@ static void LIBUSB_CALL receive_transfer(struct libusb_transfer *transfer) /* That was the last chunk in this frame. Send the buffered * pre-trigger samples out now, in one big chunk. */ sr_dbg("End of frame, sending %d pre-trigger buffered samples.", - devc->samp_buffered); + devc->samp_buffered); send_chunk(sdi, devc->framebuf, devc->samp_buffered); /* Mark the end of this frame. */ @@ -873,7 +772,7 @@ static int handle_event(int fd, int revents, void *cb_data) */ usb_source_remove(sdi->session, drvc->sr_ctx); - std_session_send_df_end(sdi, LOG_PREFIX); + std_session_send_df_end(sdi); devc->dev_state = IDLE; @@ -924,7 +823,7 @@ static int handle_event(int fd, int revents, void *cb_data) /* Remember where in the captured frame the trigger is. */ devc->trigger_offset = trigger_offset; - num_channels = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; + num_channels = (devc->ch_enabled[0] && devc->ch_enabled[1]) ? 2 : 1; devc->framebuf = g_malloc(devc->framesize * num_channels * 2); devc->samp_buffered = devc->samp_received = 0; @@ -963,9 +862,6 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi) struct sr_dev_driver *di = sdi->driver; struct drv_context *drvc = di->context; - if (sdi->status != SR_ST_ACTIVE) - return SR_ERR_DEV_CLOSED; - devc = sdi->priv; if (configure_channels(sdi) != SR_OK) { @@ -982,7 +878,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi) devc->dev_state = CAPTURE; usb_source_add(sdi->session, drvc->sr_ctx, TICK, handle_event, (void *)sdi); - std_session_send_df_header(sdi, LOG_PREFIX); + std_session_send_df_header(sdi); return SR_OK; } @@ -991,20 +887,17 @@ static int dev_acquisition_stop(struct sr_dev_inst *sdi) { struct dev_context *devc; - if (sdi->status != SR_ST_ACTIVE) - return SR_ERR; - devc = sdi->priv; devc->dev_state = STOPPING; return SR_OK; } -SR_PRIV struct sr_dev_driver hantek_dso_driver_info = { +static struct sr_dev_driver hantek_dso_driver_info = { .name = "hantek-dso", .longname = "Hantek DSO", .api_version = 1, - .init = init, + .init = std_init, .cleanup = std_cleanup, .scan = scan, .dev_list = std_dev_list, @@ -1018,3 +911,4 @@ SR_PRIV struct sr_dev_driver hantek_dso_driver_info = { .dev_acquisition_stop = dev_acquisition_stop, .context = NULL, }; +SR_REGISTER_DEV_DRIVER(hantek_dso_driver_info);