[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 drvopts[] = {
	SR_CONF_MULTIMETER,
};

static const uint32_t devopts[] = {
	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;

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

	return sr_usb_open(drvc->sr_ctx->libusb_ctx, usb);
}

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)
{
	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
}

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,
			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, \
			.dev_clear = std_dev_clear, \
			.config_get = NULL, \
			.config_set = config_set, \
			.config_list = config_list, \
			.dev_open = dev_open, \
			.dev_close = std_dummy_dev_close /* TODO */, \
			.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,
	/* {{{ fs9721 */
	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-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(
		"voltcraft-vc820", fs9721,
		"Voltcraft", "VC-820", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		NULL
	),
	DMM(
		"voltcraft-vc840", fs9721,
		"Voltcraft", "VC-840", 2400,
		FS9721_PACKET_SIZE,
		sr_fs9721_packet_valid, sr_fs9721_parse,
		sr_fs9721_00_temp_c
	),
	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(
		"uni-t-ut372", ut372,
		"UNI-T", "UT372", 2400,
		UT372_PACKET_SIZE,
		sr_ut372_packet_valid, sr_ut372_parse,
		NULL
	),
	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(
		"uni-t-ut804", ut71x,
		"UNI-T", "UT804", 2400, UT71X_PACKET_SIZE,
		sr_ut71x_packet_valid, sr_ut71x_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-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-72-7750", 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 drvopts[] = {
	32	SR_CONF_MULTIMETER,
	33	};
	34
	35	static const uint32_t devopts[] = {
	36	SR_CONF_CONTINUOUS,
	37	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET \| SR_CONF_GET,
	38	SR_CONF_LIMIT_MSEC \| SR_CONF_SET \| SR_CONF_GET,
	39	};
	40
	41	/*
	42	* Note 1: The actual baudrate of the Cyrustek ES519xx chip used in this DMM
	43	* is 19230. However, the WCH CH9325 chip (UART to USB/HID) used in (some
	44	* versions of) the UNI-T UT-D04 cable doesn't support 19230 baud. It only
	45	* supports 19200, and setting an unsupported baudrate will result in the
	46	* default of 2400 being used (which will not work with this DMM, of course).
	47	*/
	48
	49	static GSList scan(struct sr_dev_driver di, GSList *options)
	50	{
	51	GSList usb_devices, devices, *l;
	52	struct sr_dev_inst *sdi;
	53	struct dev_context *devc;
	54	struct drv_context *drvc;
	55	struct dmm_info *dmm;
	56	struct sr_usb_dev_inst *usb;
	57	struct sr_config *src;
	58	const char *conn;
	59
	60	drvc = di->context;
	61	dmm = (struct dmm_info *)di;
	62
	63	conn = NULL;
	64	for (l = options; l; l = l->next) {
	65	src = l->data;
	66	switch (src->key) {
	67	case SR_CONF_CONN:
	68	conn = g_variant_get_string(src->data, NULL);
	69	break;
	70	}
	71	}
	72	if (!conn)
	73	return NULL;
	74
	75	devices = NULL;
	76	if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) {
	77	g_slist_free_full(usb_devices, g_free);
	78	return NULL;
	79	}
	80
	81	for (l = usb_devices; l; l = l->next) {
	82	usb = l->data;
	83	devc = g_malloc0(sizeof(struct dev_context));
	84	devc->first_run = TRUE;
	85	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	86	sdi->status = SR_ST_INACTIVE;
	87	sdi->vendor = g_strdup(dmm->vendor);
	88	sdi->model = g_strdup(dmm->device);
	89	sdi->priv = devc;
	90	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
	91	sdi->inst_type = SR_INST_USB;
	92	sdi->conn = usb;
	93	devices = g_slist_append(devices, sdi);
	94	}
	95
	96	return std_scan_complete(di, devices);
	97	}
	98
	99	static int dev_open(struct sr_dev_inst *sdi)
	100	{
	101	struct sr_dev_driver *di;
	102	struct drv_context *drvc;
	103	struct sr_usb_dev_inst *usb;
	104
	105	di = sdi->driver;
	106	drvc = di->context;
	107	usb = sdi->conn;
	108
	109	return sr_usb_open(drvc->sr_ctx->libusb_ctx, usb);
	110	}
	111
	112	static int config_set(uint32_t key, GVariant *data,
	113	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	114	{
	115	struct dev_context *devc;
	116
	117	(void)cg;
	118
	119	devc = sdi->priv;
	120
	121	return sr_sw_limits_config_set(&devc->limits, key, data);
	122	}
	123
	124	static int config_list(uint32_t key, GVariant **data,
	125	const struct sr_dev_inst sdi, const struct sr_channel_group cg)
	126	{
	127	return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
	128	}
	129
	130	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	131	{
	132	struct dev_context *devc;
	133
	134	devc = sdi->priv;
	135
	136	sr_sw_limits_acquisition_start(&devc->limits);
	137
	138	std_session_send_df_header(sdi);
	139
	140	sr_session_source_add(sdi->session, -1, 0, 10,
	141	uni_t_dmm_receive_data, (void *)sdi);
	142
	143	return SR_OK;
	144	}
	145
	146	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	147	{
	148	std_session_send_df_end(sdi);
	149	sr_session_source_remove(sdi->session, -1);
	150
	151	return SR_OK;
	152	}
	153
	154	#define DMM(ID, CHIPSET, VENDOR, MODEL, BAUDRATE, PACKETSIZE, \
	155	VALID, PARSE, DETAILS) \
	156	&((struct dmm_info) { \
	157	{ \
	158	.name = ID, \
	159	.longname = VENDOR " " MODEL, \
	160	.api_version = 1, \
	161	.init = std_init, \
	162	.cleanup = std_cleanup, \
	163	.scan = scan, \
	164	.dev_list = std_dev_list, \
	165	.dev_clear = std_dev_clear, \
	166	.config_get = NULL, \
	167	.config_set = config_set, \
	168	.config_list = config_list, \
	169	.dev_open = dev_open, \
	170	.dev_close = std_dummy_dev_close /* TODO */, \
	171	.dev_acquisition_start = dev_acquisition_start, \
	172	.dev_acquisition_stop = dev_acquisition_stop, \
	173	.context = NULL, \
	174	}, \
	175	VENDOR, MODEL, BAUDRATE, PACKETSIZE, \
	176	VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
	177	}).di
	178
	179	SR_REGISTER_DEV_DRIVER_LIST(uni_t_dmm_drivers,
	180	/* {{{ fs9721 */
	181	DMM(
	182	"tecpel-dmm-8061", fs9721,
	183	"Tecpel", "DMM-8061", 2400,
	184	FS9721_PACKET_SIZE,
	185	sr_fs9721_packet_valid, sr_fs9721_parse,
	186	sr_fs9721_00_temp_c
	187	),
	188	DMM(
	189	"uni-t-ut60a", fs9721,
	190	"UNI-T", "UT60A", 2400,
	191	FS9721_PACKET_SIZE,
	192	sr_fs9721_packet_valid, sr_fs9721_parse,
	193	NULL
	194	),
	195	DMM(
	196	"uni-t-ut60e", fs9721,
	197	"UNI-T", "UT60E", 2400,
	198	FS9721_PACKET_SIZE,
	199	sr_fs9721_packet_valid, sr_fs9721_parse,
	200	sr_fs9721_00_temp_c
	201	),
	202	DMM(
	203	"voltcraft-vc820", fs9721,
	204	"Voltcraft", "VC-820", 2400,
	205	FS9721_PACKET_SIZE,
	206	sr_fs9721_packet_valid, sr_fs9721_parse,
	207	NULL
	208	),
	209	DMM(
	210	"voltcraft-vc840", fs9721,
	211	"Voltcraft", "VC-840", 2400,
	212	FS9721_PACKET_SIZE,
	213	sr_fs9721_packet_valid, sr_fs9721_parse,
	214	sr_fs9721_00_temp_c
	215	),
	216	DMM(
	217	"tenma-72-7745", fs9721,
	218	"Tenma", "72-7745", 2400,
	219	FS9721_PACKET_SIZE,
	220	sr_fs9721_packet_valid, sr_fs9721_parse,
	221	sr_fs9721_00_temp_c
	222	),
	223	/* }}} */
	224	DMM(
	225	"uni-t-ut372", ut372,
	226	"UNI-T", "UT372", 2400,
	227	UT372_PACKET_SIZE,
	228	sr_ut372_packet_valid, sr_ut372_parse,
	229	NULL
	230	),
	231	DMM(
	232	"uni-t-ut60g", es519xx,
	233	/* The baudrate is actually 19230, see "Note 1" below. */
	234	"UNI-T", "UT60G", 19200,
	235	ES519XX_11B_PACKET_SIZE,
	236	sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
	237	NULL
	238	),
	239	DMM(
	240	"uni-t-ut61b", fs9922,
	241	"UNI-T", "UT61B", 2400,
	242	FS9922_PACKET_SIZE,
	243	sr_fs9922_packet_valid, sr_fs9922_parse,
	244	NULL
	245	),
	246	DMM(
	247	"uni-t-ut61c", fs9922,
	248	"UNI-T", "UT61C", 2400,
	249	FS9922_PACKET_SIZE,
	250	sr_fs9922_packet_valid, sr_fs9922_parse,
	251	NULL
	252	),
	253	DMM(
	254	"uni-t-ut61d", fs9922,
	255	"UNI-T", "UT61D", 2400,
	256	FS9922_PACKET_SIZE,
	257	sr_fs9922_packet_valid, sr_fs9922_parse,
	258	NULL
	259	),
	260	DMM(
	261	"uni-t-ut61e", es519xx,
	262	/* The baudrate is actually 19230, see "Note 1" below. */
	263	"UNI-T", "UT61E", 19200,
	264	ES519XX_14B_PACKET_SIZE,
	265	sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
	266	NULL
	267	),
	268	DMM(
	269	"uni-t-ut71a", ut71x,
	270	"UNI-T", "UT71A", 2400, UT71X_PACKET_SIZE,
	271	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	272	),
	273	DMM(
	274	"uni-t-ut71b", ut71x,
	275	"UNI-T", "UT71B", 2400, UT71X_PACKET_SIZE,
	276	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	277	),
	278	DMM(
	279	"uni-t-ut71c", ut71x,
	280	"UNI-T", "UT71C", 2400, UT71X_PACKET_SIZE,
	281	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	282	),
	283	DMM(
	284	"uni-t-ut71d", ut71x,
	285	"UNI-T", "UT71D", 2400, UT71X_PACKET_SIZE,
	286	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	287	),
	288	DMM(
	289	"uni-t-ut71e", ut71x,
	290	"UNI-T", "UT71E", 2400, UT71X_PACKET_SIZE,
	291	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	292	),
	293	DMM(
	294	"uni-t-ut804", ut71x,
	295	"UNI-T", "UT804", 2400, UT71X_PACKET_SIZE,
	296	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	297	),
	298	DMM(
	299	"voltcraft-vc830", fs9922,
	300	/*
	301	* Note: The VC830 doesn't set the 'volt' and 'diode' bits of
	302	* the FS9922 protocol. Instead, it only sets the user-defined
	303	* bit "z1" to indicate "diode mode" and "voltage".
	304	*/
	305	"Voltcraft", "VC-830", 2400,
	306	FS9922_PACKET_SIZE,
	307	sr_fs9922_packet_valid, sr_fs9922_parse,
	308	&sr_fs9922_z1_diode
	309	),
	310	DMM(
	311	"voltcraft-vc870", vc870,
	312	"Voltcraft", "VC-870", 9600, VC870_PACKET_SIZE,
	313	sr_vc870_packet_valid, sr_vc870_parse, NULL
	314	),
	315	DMM(
	316	"voltcraft-vc920", ut71x,
	317	"Voltcraft", "VC-920", 2400, UT71X_PACKET_SIZE,
	318	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	319	),
	320	DMM(
	321	"voltcraft-vc940", ut71x,
	322	"Voltcraft", "VC-940", 2400, UT71X_PACKET_SIZE,
	323	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	324	),
	325	DMM(
	326	"voltcraft-vc960", ut71x,
	327	"Voltcraft", "VC-960", 2400, UT71X_PACKET_SIZE,
	328	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	329	),
	330	DMM(
	331	"tenma-72-7730", ut71x,
	332	"Tenma", "72-7730", 2400,
	333	UT71X_PACKET_SIZE,
	334	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	335	),
	336	DMM(
	337	"tenma-72-7732", ut71x,
	338	"Tenma", "72-7732", 2400,
	339	UT71X_PACKET_SIZE,
	340	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	341	),
	342	DMM(
	343	"tenma-72-9380a", ut71x,
	344	"Tenma", "72-9380A", 2400,
	345	UT71X_PACKET_SIZE,
	346	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	347	),
	348	DMM(
	349	"tenma-72-7750", es519xx,
	350	/* The baudrate is actually 19230, see "Note 1" below. */
	351	"Tenma", "72-7750", 19200,
	352	ES519XX_11B_PACKET_SIZE,
	353	sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
	354	NULL
	355	),
	356	);