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

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2012-2013 Uwe Hermann <uwe@hermann-uwe.de>
 *
 * 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 2 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 <config.h>
#include <stdlib.h>
#include <string.h>
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"
#include "protocol.h"

static const uint32_t scanopts[] = {
	SR_CONF_CONN,
};

static const uint32_t devopts[] = {
	SR_CONF_MULTIMETER,
	SR_CONF_CONTINUOUS,
	SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_GET,
	SR_CONF_LIMIT_MSEC | SR_CONF_SET | SR_CONF_GET,
};

/*
 * Note 1: The actual baudrate of the Cyrustek ES519xx chip used in this DMM
 * is 19230. However, the WCH CH9325 chip (UART to USB/HID) used in (some
 * versions of) the UNI-T UT-D04 cable doesn't support 19230 baud. It only
 * supports 19200, and setting an unsupported baudrate will result in the
 * default of 2400 being used (which will not work with this DMM, of course).
 */

static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
	GSList *usb_devices, *devices, *l;
	struct sr_dev_inst *sdi;
	struct dev_context *devc;
	struct drv_context *drvc;
	struct dmm_info *dmm;
	struct sr_usb_dev_inst *usb;
	struct sr_config *src;
	const char *conn;

	drvc = di->context;
	dmm = (struct dmm_info *)di;

	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, conn))) {
		g_slist_free_full(usb_devices, g_free);
		return NULL;
	}

	for (l = usb_devices; l; l = l->next) {
		usb = l->data;
		devc = g_malloc0(sizeof(struct dev_context));
		devc->first_run = TRUE;
		sdi = g_malloc0(sizeof(struct sr_dev_inst));
		sdi->status = SR_ST_INACTIVE;
		sdi->vendor = g_strdup(dmm->vendor);
		sdi->model = g_strdup(dmm->device);
		sdi->priv = devc;
		sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
		sdi->inst_type = SR_INST_USB;
		sdi->conn = usb;
		devices = g_slist_append(devices, sdi);
	}

	return std_scan_complete(di, devices);
}

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

	di = sdi->driver;
	drvc = di->context;
	usb = sdi->conn;

	if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) == SR_OK)
		sdi->status = SR_ST_ACTIVE;

	return ret;
}

static int dev_close(struct sr_dev_inst *sdi)
{
	/* TODO */

	sdi->status = SR_ST_INACTIVE;

	return SR_OK;
}

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;

	(void)cg;

	devc = sdi->priv;

	return sr_sw_limits_config_set(&devc->limits, key, data);
}

static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
		const struct sr_channel_group *cg)
{
	(void)sdi;
	(void)cg;

	switch (key) {
	case SR_CONF_SCAN_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
		break;
	case SR_CONF_DEVICE_OPTIONS:
		*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
				devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
		break;
	default:
		return SR_ERR_NA;
	}

	return SR_OK;
}

static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
	struct dev_context *devc;

	devc = sdi->priv;

	sr_sw_limits_acquisition_start(&devc->limits);

	std_session_send_df_header(sdi);

	sr_session_source_add(sdi->session, -1, 0, 10 /* poll_timeout */,
			uni_t_dmm_receive_data, (void *)sdi);

	return SR_OK;
}

static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
	std_session_send_df_end(sdi);
	sr_session_source_remove(sdi->session, -1);

	return SR_OK;
}

#define DMM(ID, CHIPSET, VENDOR, MODEL, BAUDRATE, PACKETSIZE, \
			VALID, PARSE, DETAILS) \
	&((struct dmm_info) { \
		{ \
			.name = ID, \
			.longname = VENDOR " " MODEL, \
			.api_version = 1, \
			.init = std_init, \
			.cleanup = std_cleanup, \
			.scan = scan, \
			.dev_list = std_dev_list, \
			.config_get = NULL, \
			.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, \
			.context = NULL, \
		}, \
		VENDOR, MODEL, BAUDRATE, PACKETSIZE, \
		VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
	}).di

SR_REGISTER_DEV_DRIVER_LIST(uni_t_dmm_drivers,
	DMM(
		"tecpel-dmm-8061", fs9721,
		"Tecpel", "DMM-8061", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		sr_fs9721_00_temp_c
	),
	DMM(
		"uni-t-ut372", ut372,
		"UNI-T", "UT372", 2400,
		UT372_PACKET_SIZE,
		sr_ut372_packet_valid, sr_ut372_parse,
		NULL
	),
	DMM(
		"uni-t-ut60a", fs9721,
		"UNI-T", "UT60A", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		NULL
	),
	DMM(
		"uni-t-ut60e", fs9721,
		"UNI-T", "UT60E", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		sr_fs9721_00_temp_c
	),
	DMM(
		"uni-t-ut60g", es519xx,
		/* The baudrate is actually 19230, see "Note 1" below. */
		"UNI-T", "UT60G", 19200,
		ES519XX_11B_PACKET_SIZE,
		sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
		NULL
	),
	DMM(
		"uni-t-ut61b", fs9922,
		"UNI-T", "UT61B", 2400,
		FS9922_PACKET_SIZE,
		sr_fs9922_packet_valid, sr_fs9922_parse,
		NULL
	),
	DMM(
		"uni-t-ut61c", fs9922,
		"UNI-T", "UT61C", 2400,
		FS9922_PACKET_SIZE,
		sr_fs9922_packet_valid, sr_fs9922_parse,
		NULL
	),
	DMM(
		"uni-t-ut61d", fs9922,
		"UNI-T", "UT61D", 2400,
		FS9922_PACKET_SIZE,
		sr_fs9922_packet_valid, sr_fs9922_parse,
		NULL
	),
	DMM(
		"uni-t-ut61e", es519xx,
		/* The baudrate is actually 19230, see "Note 1" below. */
		"UNI-T", "UT61E", 19200,
		ES519XX_14B_PACKET_SIZE,
		sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
		NULL
	),
	DMM(
		"uni-t-ut71a", ut71x,
		"UNI-T", "UT71A", 2400, UT71X_PACKET_SIZE,
		sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	),
	DMM(
		"uni-t-ut71b", ut71x,
		"UNI-T", "UT71B", 2400, UT71X_PACKET_SIZE,
		sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	),
	DMM(
		"uni-t-ut71c", ut71x,
		"UNI-T", "UT71C", 2400, UT71X_PACKET_SIZE,
		sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	),
	DMM(
		"uni-t-ut71d", ut71x,
		"UNI-T", "UT71D", 2400, UT71X_PACKET_SIZE,
		sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	),
	DMM(
		"uni-t-ut71e", ut71x,
		"UNI-T", "UT71E", 2400, UT71X_PACKET_SIZE,
		sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	),
	DMM(
		"voltcraft-vc820", fs9721,
		"Voltcraft", "VC-820", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		NULL
	),
	DMM(
		"voltcraft-vc830", fs9922,
		/*
		 * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
		 * the FS9922 protocol. Instead, it only sets the user-defined
		 * bit "z1" to indicate "diode mode" and "voltage".
		 */
		"Voltcraft", "VC-830", 2400,
		FS9922_PACKET_SIZE,
		sr_fs9922_packet_valid, sr_fs9922_parse,
		&sr_fs9922_z1_diode
	),
	DMM(
		"voltcraft-vc840", fs9721,
		"Voltcraft", "VC-840", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		sr_fs9721_00_temp_c
	),
	DMM(
		"voltcraft-vc870", vc870,
		"Voltcraft", "VC-870", 9600, VC870_PACKET_SIZE,
		sr_vc870_packet_valid, sr_vc870_parse, NULL
	),
	DMM(
		"voltcraft-vc920", ut71x,
		"Voltcraft", "VC-920", 2400, UT71X_PACKET_SIZE,
		sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	),
	DMM(
		"voltcraft-vc940", ut71x,
		"Voltcraft", "VC-940", 2400, UT71X_PACKET_SIZE,
		sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	),
	DMM(
		"voltcraft-vc960", ut71x,
		"Voltcraft", "VC-960", 2400, UT71X_PACKET_SIZE,
		sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	),
	DMM(
		"tenma-72-7730", ut71x,
		"Tenma", "72-7730", 2400,
		UT71X_PACKET_SIZE,
		sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	),
	DMM(
		"tenma-72-7732", ut71x,
		"Tenma", "72-7732", 2400,
		UT71X_PACKET_SIZE,
		sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	),
	DMM(
		"tenma-72-9380a", ut71x,
		"Tenma", "72-9380A", 2400,
		UT71X_PACKET_SIZE,
		sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	),
	DMM(
		"tenma-72-7745", fs9721,
		"Tenma", "72-7745", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		sr_fs9721_00_temp_c
	),
	DMM(
		"tenma-72-7750", es519xx,
		/* The baudrate is actually 19230, see "Note 1" below. */
		"Tenma", "72-7750", 19200,
		ES519XX_11B_PACKET_SIZE,
		sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
		NULL
	),
);
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2012-2013 Uwe Hermann <uwe@hermann-uwe.de>
	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 2 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 <config.h>
	21	#include <stdlib.h>
	22	#include <string.h>
	23	#include <libsigrok/libsigrok.h>
	24	#include "libsigrok-internal.h"
	25	#include "protocol.h"
	26
	27	static const uint32_t scanopts[] = {
	28	SR_CONF_CONN,
	29	};
	30
	31	static const uint32_t devopts[] = {
	32	SR_CONF_MULTIMETER,
	33	SR_CONF_CONTINUOUS,
	34	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET \| SR_CONF_GET,
	35	SR_CONF_LIMIT_MSEC \| SR_CONF_SET \| SR_CONF_GET,
	36	};
	37
	38	/*
	39	* Note 1: The actual baudrate of the Cyrustek ES519xx chip used in this DMM
	40	* is 19230. However, the WCH CH9325 chip (UART to USB/HID) used in (some
	41	* versions of) the UNI-T UT-D04 cable doesn't support 19230 baud. It only
	42	* supports 19200, and setting an unsupported baudrate will result in the
	43	* default of 2400 being used (which will not work with this DMM, of course).
	44	*/
	45
	46	static GSList scan(struct sr_dev_driver di, GSList *options)
	47	{
	48	GSList usb_devices, devices, *l;
	49	struct sr_dev_inst *sdi;
	50	struct dev_context *devc;
	51	struct drv_context *drvc;
	52	struct dmm_info *dmm;
	53	struct sr_usb_dev_inst *usb;
	54	struct sr_config *src;
	55	const char *conn;
	56
	57	drvc = di->context;
	58	dmm = (struct dmm_info *)di;
	59
	60	conn = NULL;
	61	for (l = options; l; l = l->next) {
	62	src = l->data;
	63	switch (src->key) {
	64	case SR_CONF_CONN:
	65	conn = g_variant_get_string(src->data, NULL);
	66	break;
	67	}
	68	}
	69	if (!conn)
	70	return NULL;
	71
	72	devices = NULL;
	73	if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) {
	74	g_slist_free_full(usb_devices, g_free);
	75	return NULL;
	76	}
	77
	78	for (l = usb_devices; l; l = l->next) {
	79	usb = l->data;
	80	devc = g_malloc0(sizeof(struct dev_context));
	81	devc->first_run = TRUE;
	82	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	83	sdi->status = SR_ST_INACTIVE;
	84	sdi->vendor = g_strdup(dmm->vendor);
	85	sdi->model = g_strdup(dmm->device);
	86	sdi->priv = devc;
	87	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
	88	sdi->inst_type = SR_INST_USB;
	89	sdi->conn = usb;
	90	devices = g_slist_append(devices, sdi);
	91	}
	92
	93	return std_scan_complete(di, devices);
	94	}
	95
	96	static int dev_open(struct sr_dev_inst *sdi)
	97	{
	98	struct sr_dev_driver *di;
	99	struct drv_context *drvc;
	100	struct sr_usb_dev_inst *usb;
	101	int ret;
	102
	103	di = sdi->driver;
	104	drvc = di->context;
	105	usb = sdi->conn;
	106
	107	if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) == SR_OK)
	108	sdi->status = SR_ST_ACTIVE;
	109
	110	return ret;
	111	}
	112
	113	static int dev_close(struct sr_dev_inst *sdi)
	114	{
	115	/* TODO */
	116
	117	sdi->status = SR_ST_INACTIVE;
	118
	119	return SR_OK;
	120	}
	121
	122	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
	123	const struct sr_channel_group *cg)
	124	{
	125	struct dev_context *devc;
	126
	127	(void)cg;
	128
	129	devc = sdi->priv;
	130
	131	return sr_sw_limits_config_set(&devc->limits, key, data);
	132	}
	133
	134	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
	135	const struct sr_channel_group *cg)
	136	{
	137	(void)sdi;
	138	(void)cg;
	139
	140	switch (key) {
	141	case SR_CONF_SCAN_OPTIONS:
	142	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	143	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
	144	break;
	145	case SR_CONF_DEVICE_OPTIONS:
	146	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	147	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
	148	break;
	149	default:
	150	return SR_ERR_NA;
	151	}
	152
	153	return SR_OK;
	154	}
	155
	156	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	157	{
	158	struct dev_context *devc;
	159
	160	devc = sdi->priv;
	161
	162	sr_sw_limits_acquisition_start(&devc->limits);
	163
	164	std_session_send_df_header(sdi);
	165
	166	sr_session_source_add(sdi->session, -1, 0, 10 /* poll_timeout */,
	167	uni_t_dmm_receive_data, (void *)sdi);
	168
	169	return SR_OK;
	170	}
	171
	172	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	173	{
	174	std_session_send_df_end(sdi);
	175	sr_session_source_remove(sdi->session, -1);
	176
	177	return SR_OK;
	178	}
	179
	180	#define DMM(ID, CHIPSET, VENDOR, MODEL, BAUDRATE, PACKETSIZE, \
	181	VALID, PARSE, DETAILS) \
	182	&((struct dmm_info) { \
	183	{ \
	184	.name = ID, \
	185	.longname = VENDOR " " MODEL, \
	186	.api_version = 1, \
	187	.init = std_init, \
	188	.cleanup = std_cleanup, \
	189	.scan = scan, \
	190	.dev_list = std_dev_list, \
	191	.config_get = NULL, \
	192	.config_set = config_set, \
	193	.config_list = config_list, \
	194	.dev_open = dev_open, \
	195	.dev_close = dev_close, \
	196	.dev_acquisition_start = dev_acquisition_start, \
	197	.dev_acquisition_stop = dev_acquisition_stop, \
	198	.context = NULL, \
	199	}, \
	200	VENDOR, MODEL, BAUDRATE, PACKETSIZE, \
	201	VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
	202	}).di
	203
	204	SR_REGISTER_DEV_DRIVER_LIST(uni_t_dmm_drivers,
	205	DMM(
	206	"tecpel-dmm-8061", fs9721,
	207	"Tecpel", "DMM-8061", 2400,
	208	FS9721_PACKET_SIZE,
	209	sr_fs9721_packet_valid, sr_fs9721_parse,
	210	sr_fs9721_00_temp_c
	211	),
	212	DMM(
	213	"uni-t-ut372", ut372,
	214	"UNI-T", "UT372", 2400,
	215	UT372_PACKET_SIZE,
	216	sr_ut372_packet_valid, sr_ut372_parse,
	217	NULL
	218	),
	219	DMM(
	220	"uni-t-ut60a", fs9721,
	221	"UNI-T", "UT60A", 2400,
	222	FS9721_PACKET_SIZE,
	223	sr_fs9721_packet_valid, sr_fs9721_parse,
	224	NULL
	225	),
	226	DMM(
	227	"uni-t-ut60e", fs9721,
	228	"UNI-T", "UT60E", 2400,
	229	FS9721_PACKET_SIZE,
	230	sr_fs9721_packet_valid, sr_fs9721_parse,
	231	sr_fs9721_00_temp_c
	232	),
	233	DMM(
	234	"uni-t-ut60g", es519xx,
	235	/* The baudrate is actually 19230, see "Note 1" below. */
	236	"UNI-T", "UT60G", 19200,
	237	ES519XX_11B_PACKET_SIZE,
	238	sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
	239	NULL
	240	),
	241	DMM(
	242	"uni-t-ut61b", fs9922,
	243	"UNI-T", "UT61B", 2400,
	244	FS9922_PACKET_SIZE,
	245	sr_fs9922_packet_valid, sr_fs9922_parse,
	246	NULL
	247	),
	248	DMM(
	249	"uni-t-ut61c", fs9922,
	250	"UNI-T", "UT61C", 2400,
	251	FS9922_PACKET_SIZE,
	252	sr_fs9922_packet_valid, sr_fs9922_parse,
	253	NULL
	254	),
	255	DMM(
	256	"uni-t-ut61d", fs9922,
	257	"UNI-T", "UT61D", 2400,
	258	FS9922_PACKET_SIZE,
	259	sr_fs9922_packet_valid, sr_fs9922_parse,
	260	NULL
	261	),
	262	DMM(
	263	"uni-t-ut61e", es519xx,
	264	/* The baudrate is actually 19230, see "Note 1" below. */
	265	"UNI-T", "UT61E", 19200,
	266	ES519XX_14B_PACKET_SIZE,
	267	sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
	268	NULL
	269	),
	270	DMM(
	271	"uni-t-ut71a", ut71x,
	272	"UNI-T", "UT71A", 2400, UT71X_PACKET_SIZE,
	273	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	274	),
	275	DMM(
	276	"uni-t-ut71b", ut71x,
	277	"UNI-T", "UT71B", 2400, UT71X_PACKET_SIZE,
	278	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	279	),
	280	DMM(
	281	"uni-t-ut71c", ut71x,
	282	"UNI-T", "UT71C", 2400, UT71X_PACKET_SIZE,
	283	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	284	),
	285	DMM(
	286	"uni-t-ut71d", ut71x,
	287	"UNI-T", "UT71D", 2400, UT71X_PACKET_SIZE,
	288	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	289	),
	290	DMM(
	291	"uni-t-ut71e", ut71x,
	292	"UNI-T", "UT71E", 2400, UT71X_PACKET_SIZE,
	293	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	294	),
	295	DMM(
	296	"voltcraft-vc820", fs9721,
	297	"Voltcraft", "VC-820", 2400,
	298	FS9721_PACKET_SIZE,
	299	sr_fs9721_packet_valid, sr_fs9721_parse,
	300	NULL
	301	),
	302	DMM(
	303	"voltcraft-vc830", fs9922,
	304	/*
	305	* Note: The VC830 doesn't set the 'volt' and 'diode' bits of
	306	* the FS9922 protocol. Instead, it only sets the user-defined
	307	* bit "z1" to indicate "diode mode" and "voltage".
	308	*/
	309	"Voltcraft", "VC-830", 2400,
	310	FS9922_PACKET_SIZE,
	311	sr_fs9922_packet_valid, sr_fs9922_parse,
	312	&sr_fs9922_z1_diode
	313	),
	314	DMM(
	315	"voltcraft-vc840", fs9721,
	316	"Voltcraft", "VC-840", 2400,
	317	FS9721_PACKET_SIZE,
	318	sr_fs9721_packet_valid, sr_fs9721_parse,
	319	sr_fs9721_00_temp_c
	320	),
	321	DMM(
	322	"voltcraft-vc870", vc870,
	323	"Voltcraft", "VC-870", 9600, VC870_PACKET_SIZE,
	324	sr_vc870_packet_valid, sr_vc870_parse, NULL
	325	),
	326	DMM(
	327	"voltcraft-vc920", ut71x,
	328	"Voltcraft", "VC-920", 2400, UT71X_PACKET_SIZE,
	329	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	330	),
	331	DMM(
	332	"voltcraft-vc940", ut71x,
	333	"Voltcraft", "VC-940", 2400, UT71X_PACKET_SIZE,
	334	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	335	),
	336	DMM(
	337	"voltcraft-vc960", ut71x,
	338	"Voltcraft", "VC-960", 2400, UT71X_PACKET_SIZE,
	339	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	340	),
	341	DMM(
	342	"tenma-72-7730", ut71x,
	343	"Tenma", "72-7730", 2400,
	344	UT71X_PACKET_SIZE,
	345	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	346	),
	347	DMM(
	348	"tenma-72-7732", ut71x,
	349	"Tenma", "72-7732", 2400,
	350	UT71X_PACKET_SIZE,
	351	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	352	),
	353	DMM(
	354	"tenma-72-9380a", ut71x,
	355	"Tenma", "72-9380A", 2400,
	356	UT71X_PACKET_SIZE,
	357	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	358	),
	359	DMM(
	360	"tenma-72-7745", fs9721,
	361	"Tenma", "72-7745", 2400,
	362	FS9721_PACKET_SIZE,
	363	sr_fs9721_packet_valid, sr_fs9721_parse,
	364	sr_fs9721_00_temp_c
	365	),
	366	DMM(
	367	"tenma-72-7750", es519xx,
	368	/* The baudrate is actually 19230, see "Note 1" below. */
	369	"Tenma", "72-7750", 19200,
	370	ES519XX_11B_PACKET_SIZE,
	371	sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
	372	NULL
	373	),
	374	);