[libsigrok.git] / hardware / uni-t-ut32x / api.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "protocol.h"

#include <string.h>

#define USB_CONN "1a86.e008"
#define VENDOR "UNI-T"
#define MODEL "UT32x"
#define USB_INTERFACE 0
#define EP_IN 0x80 | 2
#define EP_OUT 2

static const int32_t hwcaps[] = {
	SR_CONF_THERMOMETER,
	SR_CONF_LIMIT_SAMPLES,
	SR_CONF_CONTINUOUS,
	SR_CONF_DATA_SOURCE,
};

static char *probes[] = {
	"T1",
	"T2",
	"T1-T2",
};

static const char *data_sources[] = {
	"Live",
	"Memory",
};

SR_PRIV struct sr_dev_driver uni_t_ut32x_driver_info;
static struct sr_dev_driver *di = &uni_t_ut32x_driver_info;


static int init(struct sr_context *sr_ctx)
{
	return std_init(sr_ctx, di, LOG_PREFIX);
}

static GSList *scan(GSList *options)
{
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_dev_inst *sdi;
	struct sr_probe *probe;
	struct sr_config *src;
	GSList *usb_devices, *devices, *l;
	int i;
	const char *conn;

	drvc = di->priv;
	drvc->instances = NULL;

	conn = NULL;
	for (l = options; l; l = l->next) {
		src = l->data;
		switch (src->key) {
		case SR_CONF_CONN:
			conn = g_variant_get_string(src->data, NULL);
			break;
		}
	}
	if (!conn)
		return NULL;

	devices = NULL;
	if ((usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_CONN))) {
		/* We have a list of sr_usb_dev_inst matching the connection
		 * string. Wrap them in sr_dev_inst and we're done. */
		for (l = usb_devices; l; l = l->next) {
			if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, VENDOR,
					MODEL, NULL)))
				return NULL;
			sdi->driver = di;
			sdi->inst_type = SR_INST_USB;
			sdi->conn = l->data;
			for (i = 0; i < 3; i++) {
				if (!(probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE,
						probes[i]))) {
					sr_dbg("Probe malloc failed.");
					return NULL;
				}
				sdi->probes = g_slist_append(sdi->probes, probe);
			}

			if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
				sr_dbg("Device context malloc failed.");
				return NULL;
			}
			sdi->priv = devc;
			devc->limit_samples = 0;
			devc->data_source = DEFAULT_DATA_SOURCE;
			drvc->instances = g_slist_append(drvc->instances, sdi);
			devices = g_slist_append(devices, sdi);
		}
		g_slist_free(usb_devices);
	} else
		g_slist_free_full(usb_devices, g_free);

	return devices;
}

static GSList *dev_list(void)
{
	struct drv_context *drvc;

	drvc = di->priv;

	return drvc->instances;
}

static int dev_clear(void)
{
	return std_dev_clear(di, NULL);
}

static int dev_open(struct sr_dev_inst *sdi)
{
	struct drv_context *drvc;
	struct sr_usb_dev_inst *usb;
	int ret;

	if (!(drvc = di->priv)) {
		sr_err("Driver was not initialized.");
		return SR_ERR;
	}

	usb = sdi->conn;

	if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
		return SR_ERR;

/*
 * The libusbx 1.0.9 darwin backend is broken: it can report a kernel
 * driver being active, but detaching it always returns an error.
 */
#if !defined(__APPLE__)
	if (libusb_kernel_driver_active(usb->devhdl, 0) == 1) {
		if ((ret = libusb_detach_kernel_driver(usb->devhdl, 0)) < 0) {
			sr_err("failed to detach kernel driver: %s",
					libusb_error_name(ret));
			return SR_ERR;
		}
	}
#endif

	if ((ret = libusb_set_configuration(usb->devhdl, 1))) {
		sr_err("Failed to set configuration: %s.", libusb_error_name(ret));
		return SR_ERR;
	}

	if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE))) {
		sr_err("Failed to claim interface: %s.", libusb_error_name(ret));
		return SR_ERR;
	}
	sdi->status = SR_ST_ACTIVE;

	return ret;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	struct sr_usb_dev_inst *usb;

	if (!di->priv) {
		sr_err("Driver was not initialized.");
		return SR_ERR;
	}

	usb = sdi->conn;
	if (!usb->devhdl)
		/*  Nothing to do. */
		return SR_OK;

	libusb_release_interface(usb->devhdl, USB_INTERFACE);
	libusb_close(usb->devhdl);
	usb->devhdl = NULL;
	sdi->status = SR_ST_INACTIVE;

	return SR_OK;
}

static int cleanup(void)
{
	int ret;
	struct drv_context *drvc;

	if (!(drvc = di->priv))
		/* Can get called on an unused driver, doesn't matter. */
		return SR_OK;

	ret = dev_clear();
	g_free(drvc);
	di->priv = NULL;

	return ret;
}

static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

	devc = sdi->priv;
	switch (key) {
	case SR_CONF_LIMIT_SAMPLES:
		*data = g_variant_new_uint64(devc->limit_samples);
		break;
	case SR_CONF_DATA_SOURCE:
		if (devc->data_source == DATA_SOURCE_LIVE)
			*data = g_variant_new_string("Live");
		else
			*data = g_variant_new_string("Memory");
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;
	int ret;
	const char *tmp_str;

	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	if (!di->priv) {
		sr_err("Driver was not initialized.");
		return SR_ERR;
	}

	devc = sdi->priv;
	ret = SR_OK;
	switch (key) {
	case SR_CONF_LIMIT_SAMPLES:
		devc->limit_samples = g_variant_get_uint64(data);
		sr_dbg("Setting sample limit to %" PRIu64 ".",
		       devc->limit_samples);
		break;
	case SR_CONF_DATA_SOURCE:
		tmp_str = g_variant_get_string(data, NULL);
		if (!strcmp(tmp_str, "Live"))
			devc->data_source = DATA_SOURCE_LIVE;
		else if (!strcmp(tmp_str, "Memory"))
			devc->data_source = DATA_SOURCE_MEMORY;
		else
			return SR_ERR;
		break;
	default:
		ret = SR_ERR_NA;
	}

	return ret;
}

static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
{

	(void)sdi;

	switch (key) {
	case SR_CONF_DEVICE_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
				hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
		break;
	case SR_CONF_DATA_SOURCE:
		*data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi,
				    void *cb_data)
{
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_usb_dev_inst *usb;
	const struct libusb_pollfd **pfd;
	int len, ret, i;
	unsigned char cmd[2];

	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	drvc = di->priv;
	devc = sdi->priv;
	usb = sdi->conn;

	devc->cb_data = cb_data;
	devc->num_samples = 0;

	/* Send header packet to the session bus. */
	std_session_send_df_header(cb_data, LOG_PREFIX);

	if (!(devc->xfer = libusb_alloc_transfer(0)))
		return SR_ERR;

	pfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
	for (i = 0; pfd[i]; i++) {
		/* Handle USB events every 10ms. */
		sr_source_add(pfd[i]->fd, pfd[i]->events, 10,
				uni_t_ut32x_handle_events, (void *)sdi);
		/* We'll need to remove this fd later. */
		devc->usbfd[i] = pfd[i]->fd;
	}
	devc->usbfd[i] = -1;

	/* Length of payload to follow. */
	cmd[0] = 0x01;
	if (devc->data_source == DATA_SOURCE_LIVE)
		cmd[1] = CMD_GET_LIVE;
	else
		cmd[1] = CMD_GET_STORED;

	ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, cmd, 2, &len, 5);
	if (ret != 0 || len != 2) {
		sr_dbg("Failed to start acquisition: %s", libusb_error_name(ret));
		libusb_free_transfer(devc->xfer);
		return SR_ERR;
	}

	libusb_fill_bulk_transfer(devc->xfer, usb->devhdl, EP_IN, devc->buf,
			128, uni_t_ut32x_receive_transfer, (void *)sdi, 15);
	if (libusb_submit_transfer(devc->xfer) != 0) {
		libusb_free_transfer(devc->xfer);
		return SR_ERR;
	}

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
	(void)cb_data;

	if (sdi->status != SR_ST_ACTIVE)
		return SR_ERR_DEV_CLOSED;

	/* TODO: stop acquisition. */

	return SR_OK;
}

SR_PRIV struct sr_dev_driver uni_t_ut32x_driver_info = {
	.name = "uni-t-ut32x",
	.longname = "UNI-T UT32x",
	.api_version = 1,
	.init = init,
	.cleanup = cleanup,
	.scan = scan,
	.dev_list = dev_list,
	.dev_clear = dev_clear,
	.config_get = config_get,
	.config_set = config_set,
	.config_list = config_list,
	.dev_open = dev_open,
	.dev_close = dev_close,
	.dev_acquisition_start = dev_acquisition_start,
	.dev_acquisition_stop = dev_acquisition_stop,
	.priv = NULL,
};
Commit	Line	Data
3877dde4 BV	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
	5	*
	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.
	10	*
	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.
	15	*
	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/>.
	18	*/
	19
	20	#include "protocol.h"
	21
6513f97f BV	22	#include <string.h>
	23
	24	#define USB_CONN "1a86.e008"
	25	#define VENDOR "UNI-T"
	26	#define MODEL "UT32x"
	27	#define USB_INTERFACE 0
	28	#define EP_IN 0x80 \| 2
	29	#define EP_OUT 2
	30
	31	static const int32_t hwcaps[] = {
	32	SR_CONF_THERMOMETER,
	33	SR_CONF_LIMIT_SAMPLES,
	34	SR_CONF_CONTINUOUS,
	35	SR_CONF_DATA_SOURCE,
	36	};
	37
	38	static char *probes[] = {
	39	"T1",
	40	"T2",
	41	"T1-T2",
	42	};
	43
	44	static const char *data_sources[] = {
	45	"Live",
	46	"Memory",
	47	};
	48
3877dde4 BV	49	SR_PRIV struct sr_dev_driver uni_t_ut32x_driver_info;
	50	static struct sr_dev_driver *di = &uni_t_ut32x_driver_info;
	51
	52
	53	static int init(struct sr_context *sr_ctx)
	54	{
	55	return std_init(sr_ctx, di, LOG_PREFIX);
	56	}
	57
	58	static GSList scan(GSList options)
	59	{
	60	struct drv_context *drvc;
6513f97f BV	61	struct dev_context *devc;
	62	struct sr_dev_inst *sdi;
	63	struct sr_probe *probe;
	64	struct sr_config *src;
	65	GSList usb_devices, devices, *l;
	66	int i;
	67	const char *conn;
3877dde4	68
3877dde4 BV	69	drvc = di->priv;
	70	drvc->instances = NULL;
	71
6513f97f BV	72	conn = NULL;
	73	for (l = options; l; l = l->next) {
	74	src = l->data;
	75	switch (src->key) {
	76	case SR_CONF_CONN:
	77	conn = g_variant_get_string(src->data, NULL);
	78	break;
	79	}
	80	}
	81	if (!conn)
	82	return NULL;
	83
	84	devices = NULL;
	85	if ((usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_CONN))) {
	86	/* We have a list of sr_usb_dev_inst matching the connection
	87	* string. Wrap them in sr_dev_inst and we're done. */
	88	for (l = usb_devices; l; l = l->next) {
	89	if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, VENDOR,
	90	MODEL, NULL)))
	91	return NULL;
	92	sdi->driver = di;
	93	sdi->inst_type = SR_INST_USB;
	94	sdi->conn = l->data;
	95	for (i = 0; i < 3; i++) {
	96	if (!(probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE,
	97	probes[i]))) {
	98	sr_dbg("Probe malloc failed.");
	99	return NULL;
	100	}
	101	sdi->probes = g_slist_append(sdi->probes, probe);
	102	}
	103
	104	if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
	105	sr_dbg("Device context malloc failed.");
	106	return NULL;
	107	}
	108	sdi->priv = devc;
	109	devc->limit_samples = 0;
	110	devc->data_source = DEFAULT_DATA_SOURCE;
	111	drvc->instances = g_slist_append(drvc->instances, sdi);
	112	devices = g_slist_append(devices, sdi);
	113	}
	114	g_slist_free(usb_devices);
	115	} else
	116	g_slist_free_full(usb_devices, g_free);
3877dde4 BV	117
	118	return devices;
	119	}
	120
	121	static GSList *dev_list(void)
	122	{
	123	struct drv_context *drvc;
	124
	125	drvc = di->priv;
	126
	127	return drvc->instances;
	128	}
	129
	130	static int dev_clear(void)
	131	{
	132	return std_dev_clear(di, NULL);
	133	}
	134
	135	static int dev_open(struct sr_dev_inst *sdi)
	136	{
6513f97f BV	137	struct drv_context *drvc;
	138	struct sr_usb_dev_inst *usb;
	139	int ret;
	140
	141	if (!(drvc = di->priv)) {
	142	sr_err("Driver was not initialized.");
	143	return SR_ERR;
	144	}
	145
	146	usb = sdi->conn;
	147
	148	if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK)
	149	return SR_ERR;
	150
	151	/*
	152	* The libusbx 1.0.9 darwin backend is broken: it can report a kernel
	153	* driver being active, but detaching it always returns an error.
	154	*/
	155	#if !defined(__APPLE__)
	156	if (libusb_kernel_driver_active(usb->devhdl, 0) == 1) {
	157	if ((ret = libusb_detach_kernel_driver(usb->devhdl, 0)) < 0) {
	158	sr_err("failed to detach kernel driver: %s",
	159	libusb_error_name(ret));
	160	return SR_ERR;
	161	}
	162	}
	163	#endif
3877dde4	164
6513f97f BV	165	if ((ret = libusb_set_configuration(usb->devhdl, 1))) {
	166	sr_err("Failed to set configuration: %s.", libusb_error_name(ret));
	167	return SR_ERR;
	168	}
3877dde4	169
6513f97f BV	170	if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE))) {
	171	sr_err("Failed to claim interface: %s.", libusb_error_name(ret));
	172	return SR_ERR;
	173	}
3877dde4 BV	174	sdi->status = SR_ST_ACTIVE;
3877dde4 BV	175
6513f97f	176	return ret;
3877dde4 BV	177	}
	178
	179	static int dev_close(struct sr_dev_inst *sdi)
	180	{
6513f97f	181	struct sr_usb_dev_inst *usb;
3877dde4	182
6513f97f BV	183	if (!di->priv) {
	184	sr_err("Driver was not initialized.");
	185	return SR_ERR;
	186	}
	187
	188	usb = sdi->conn;
	189	if (!usb->devhdl)
	190	/* Nothing to do. */
	191	return SR_OK;
3877dde4	192
6513f97f BV	193	libusb_release_interface(usb->devhdl, USB_INTERFACE);
	194	libusb_close(usb->devhdl);
	195	usb->devhdl = NULL;
3877dde4 BV	196	sdi->status = SR_ST_INACTIVE;
	197
	198	return SR_OK;
	199	}
	200
	201	static int cleanup(void)
	202	{
6513f97f BV	203	int ret;
6513f97f BV	204	struct drv_context *drvc;
3877dde4	205
6513f97f BV	206	if (!(drvc = di->priv))
	207	/* Can get called on an unused driver, doesn't matter. */
	208	return SR_OK;
3877dde4	209
6513f97f BV	210	ret = dev_clear();
	211	g_free(drvc);
	212	di->priv = NULL;
	213
	214	return ret;
3877dde4 BV	215	}
	216
	217	static int config_get(int key, GVariant *data, const struct sr_dev_inst sdi)
	218	{
6513f97f	219	struct dev_context *devc;
3877dde4	220
6513f97f	221	devc = sdi->priv;
3877dde4	222	switch (key) {
6513f97f BV	223	case SR_CONF_LIMIT_SAMPLES:
	224	*data = g_variant_new_uint64(devc->limit_samples);
	225	break;
	226	case SR_CONF_DATA_SOURCE:
	227	if (devc->data_source == DATA_SOURCE_LIVE)
	228	*data = g_variant_new_string("Live");
	229	else
	230	*data = g_variant_new_string("Memory");
	231	break;
3877dde4 BV	232	default:
	233	return SR_ERR_NA;
	234	}
	235
6513f97f	236	return SR_OK;
3877dde4 BV	237	}
	238
	239	static int config_set(int key, GVariant data, const struct sr_dev_inst sdi)
	240	{
6513f97f	241	struct dev_context *devc;
3877dde4	242	int ret;
6513f97f	243	const char *tmp_str;
3877dde4 BV	244
	245	if (sdi->status != SR_ST_ACTIVE)
	246	return SR_ERR_DEV_CLOSED;
	247
6513f97f BV	248	if (!di->priv) {
	249	sr_err("Driver was not initialized.");
	250	return SR_ERR;
	251	}
	252
	253	devc = sdi->priv;
3877dde4 BV	254	ret = SR_OK;
3877dde4 BV	255	switch (key) {
6513f97f BV	256	case SR_CONF_LIMIT_SAMPLES:
	257	devc->limit_samples = g_variant_get_uint64(data);
	258	sr_dbg("Setting sample limit to %" PRIu64 ".",
	259	devc->limit_samples);
	260	break;
	261	case SR_CONF_DATA_SOURCE:
	262	tmp_str = g_variant_get_string(data, NULL);
	263	if (!strcmp(tmp_str, "Live"))
	264	devc->data_source = DATA_SOURCE_LIVE;
	265	else if (!strcmp(tmp_str, "Memory"))
	266	devc->data_source = DATA_SOURCE_MEMORY;
	267	else
	268	return SR_ERR;
	269	break;
3877dde4 BV	270	default:
	271	ret = SR_ERR_NA;
	272	}
	273
	274	return ret;
	275	}
	276
	277	static int config_list(int key, GVariant *data, const struct sr_dev_inst sdi)
	278	{
3877dde4 BV	279
3877dde4 BV	280	(void)sdi;
3877dde4	281
3877dde4	282	switch (key) {
6513f97f BV	283	case SR_CONF_DEVICE_OPTIONS:
	284	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
	285	hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
	286	break;
	287	case SR_CONF_DATA_SOURCE:
	288	*data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
	289	break;
3877dde4 BV	290	default:
	291	return SR_ERR_NA;
	292	}
	293
6513f97f	294	return SR_OK;
3877dde4 BV	295	}
	296
	297	static int dev_acquisition_start(const struct sr_dev_inst *sdi,
	298	void *cb_data)
	299	{
6513f97f BV	300	struct drv_context *drvc;
	301	struct dev_context *devc;
	302	struct sr_usb_dev_inst *usb;
	303	const struct libusb_pollfd **pfd;
	304	int len, ret, i;
	305	unsigned char cmd[2];
3877dde4 BV	306
	307	if (sdi->status != SR_ST_ACTIVE)
	308	return SR_ERR_DEV_CLOSED;
	309
6513f97f BV	310	drvc = di->priv;
	311	devc = sdi->priv;
	312	usb = sdi->conn;
	313
	314	devc->cb_data = cb_data;
	315	devc->num_samples = 0;
	316
	317	/* Send header packet to the session bus. */
	318	std_session_send_df_header(cb_data, LOG_PREFIX);
	319
	320	if (!(devc->xfer = libusb_alloc_transfer(0)))
	321	return SR_ERR;
	322
	323	pfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
	324	for (i = 0; pfd[i]; i++) {
	325	/* Handle USB events every 10ms. */
	326	sr_source_add(pfd[i]->fd, pfd[i]->events, 10,
	327	uni_t_ut32x_handle_events, (void *)sdi);
	328	/* We'll need to remove this fd later. */
	329	devc->usbfd[i] = pfd[i]->fd;
	330	}
	331	devc->usbfd[i] = -1;
	332
	333	/* Length of payload to follow. */
	334	cmd[0] = 0x01;
	335	if (devc->data_source == DATA_SOURCE_LIVE)
	336	cmd[1] = CMD_GET_LIVE;
	337	else
	338	cmd[1] = CMD_GET_STORED;
	339
	340	ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, cmd, 2, &len, 5);
	341	if (ret != 0 \|\| len != 2) {
	342	sr_dbg("Failed to start acquisition: %s", libusb_error_name(ret));
	343	libusb_free_transfer(devc->xfer);
	344	return SR_ERR;
	345	}
	346
	347	libusb_fill_bulk_transfer(devc->xfer, usb->devhdl, EP_IN, devc->buf,
	348	128, uni_t_ut32x_receive_transfer, (void *)sdi, 15);
	349	if (libusb_submit_transfer(devc->xfer) != 0) {
	350	libusb_free_transfer(devc->xfer);
	351	return SR_ERR;
	352	}
3877dde4 BV	353
	354	return SR_OK;
	355	}
	356
	357	static int dev_acquisition_stop(struct sr_dev_inst sdi, void cb_data)
	358	{
	359	(void)cb_data;
	360
	361	if (sdi->status != SR_ST_ACTIVE)
	362	return SR_ERR_DEV_CLOSED;
	363
	364	/* TODO: stop acquisition. */
	365
	366	return SR_OK;
	367	}
	368
	369	SR_PRIV struct sr_dev_driver uni_t_ut32x_driver_info = {
	370	.name = "uni-t-ut32x",
	371	.longname = "UNI-T UT32x",
	372	.api_version = 1,
	373	.init = init,
	374	.cleanup = cleanup,
	375	.scan = scan,
	376	.dev_list = dev_list,
	377	.dev_clear = dev_clear,
	378	.config_get = config_get,
	379	.config_set = config_set,
	380	.config_list = config_list,
	381	.dev_open = dev_open,
	382	.dev_close = dev_close,
	383	.dev_acquisition_start = dev_acquisition_start,
	384	.dev_acquisition_stop = dev_acquisition_stop,
	385	.priv = NULL,
	386	};