[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, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#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)
{
	sr_dbg("Stopping acquisition.");
	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", es519xx,
		"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, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#include <config.h>
	22	#include <stdlib.h>
	23	#include <string.h>
	24	#include <libsigrok/libsigrok.h>
	25	#include "libsigrok-internal.h"
	26	#include "protocol.h"
	27
	28	static const uint32_t scanopts[] = {
	29	SR_CONF_CONN,
	30	};
	31
	32	static const uint32_t devopts[] = {
	33	SR_CONF_MULTIMETER,
	34	SR_CONF_CONTINUOUS,
	35	SR_CONF_LIMIT_SAMPLES \| SR_CONF_SET \| SR_CONF_GET,
	36	SR_CONF_LIMIT_MSEC \| SR_CONF_SET \| SR_CONF_GET,
	37	};
	38
	39	/*
	40	* Note 1: The actual baudrate of the Cyrustek ES519xx chip used in this DMM
	41	* is 19230. However, the WCH CH9325 chip (UART to USB/HID) used in (some
	42	* versions of) the UNI-T UT-D04 cable doesn't support 19230 baud. It only
	43	* supports 19200, and setting an unsupported baudrate will result in the
	44	* default of 2400 being used (which will not work with this DMM, of course).
	45	*/
	46
	47	static GSList scan(struct sr_dev_driver di, GSList *options)
	48	{
	49	GSList usb_devices, devices, *l;
	50	struct sr_dev_inst *sdi;
	51	struct dev_context *devc;
	52	struct drv_context *drvc;
	53	struct dmm_info *dmm;
	54	struct sr_usb_dev_inst *usb;
	55	struct sr_config *src;
	56	const char *conn;
	57
	58	drvc = di->context;
	59	dmm = (struct dmm_info *)di;
	60
	61	conn = NULL;
	62	for (l = options; l; l = l->next) {
	63	src = l->data;
	64	switch (src->key) {
	65	case SR_CONF_CONN:
	66	conn = g_variant_get_string(src->data, NULL);
	67	break;
	68	}
	69	}
	70	if (!conn)
	71	return NULL;
	72
	73	devices = NULL;
	74	if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) {
	75	g_slist_free_full(usb_devices, g_free);
	76	return NULL;
	77	}
	78
	79	for (l = usb_devices; l; l = l->next) {
	80	usb = l->data;
	81	devc = g_malloc0(sizeof(struct dev_context));
	82	devc->first_run = TRUE;
	83	sdi = g_malloc0(sizeof(struct sr_dev_inst));
	84	sdi->status = SR_ST_INACTIVE;
	85	sdi->vendor = g_strdup(dmm->vendor);
	86	sdi->model = g_strdup(dmm->device);
	87	sdi->priv = devc;
	88	sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
	89	sdi->inst_type = SR_INST_USB;
	90	sdi->conn = usb;
	91	devices = g_slist_append(devices, sdi);
	92	}
	93
	94	return std_scan_complete(di, devices);
	95	}
	96
	97	static int dev_open(struct sr_dev_inst *sdi)
	98	{
	99	struct sr_dev_driver *di;
	100	struct drv_context *drvc;
	101	struct sr_usb_dev_inst *usb;
	102	int ret;
	103
	104	di = sdi->driver;
	105	drvc = di->context;
	106	usb = sdi->conn;
	107
	108	if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) == SR_OK)
	109	sdi->status = SR_ST_ACTIVE;
	110
	111	return ret;
	112	}
	113
	114	static int dev_close(struct sr_dev_inst *sdi)
	115	{
	116	/* TODO */
	117
	118	sdi->status = SR_ST_INACTIVE;
	119
	120	return SR_OK;
	121	}
	122
	123	static int config_set(uint32_t key, GVariant data, const struct sr_dev_inst sdi,
	124	const struct sr_channel_group *cg)
	125	{
	126	struct dev_context *devc;
	127
	128	(void)cg;
	129
	130	devc = sdi->priv;
	131
	132	return sr_sw_limits_config_set(&devc->limits, key, data);
	133	}
	134
	135	static int config_list(uint32_t key, GVariant *data, const struct sr_dev_inst sdi,
	136	const struct sr_channel_group *cg)
	137	{
	138	(void)sdi;
	139	(void)cg;
	140
	141	switch (key) {
	142	case SR_CONF_SCAN_OPTIONS:
	143	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	144	scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
	145	break;
	146	case SR_CONF_DEVICE_OPTIONS:
	147	*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
	148	devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
	149	break;
	150	default:
	151	return SR_ERR_NA;
	152	}
	153
	154	return SR_OK;
	155	}
	156
	157	static int dev_acquisition_start(const struct sr_dev_inst *sdi)
	158	{
	159	struct dev_context *devc;
	160
	161	devc = sdi->priv;
	162
	163	sr_sw_limits_acquisition_start(&devc->limits);
	164
	165	std_session_send_df_header(sdi);
	166
	167	sr_session_source_add(sdi->session, -1, 0, 10 /* poll_timeout */,
	168	uni_t_dmm_receive_data, (void *)sdi);
	169
	170	return SR_OK;
	171	}
	172
	173	static int dev_acquisition_stop(struct sr_dev_inst *sdi)
	174	{
	175	sr_dbg("Stopping acquisition.");
	176	std_session_send_df_end(sdi);
	177	sr_session_source_remove(sdi->session, -1);
	178
	179	return SR_OK;
	180	}
	181
	182	#define DMM(ID, CHIPSET, VENDOR, MODEL, BAUDRATE, PACKETSIZE, \
	183	VALID, PARSE, DETAILS) \
	184	&((struct dmm_info) { \
	185	{ \
	186	.name = ID, \
	187	.longname = VENDOR " " MODEL, \
	188	.api_version = 1, \
	189	.init = std_init, \
	190	.cleanup = std_cleanup, \
	191	.scan = scan, \
	192	.dev_list = std_dev_list, \
	193	.config_get = NULL, \
	194	.config_set = config_set, \
	195	.config_list = config_list, \
	196	.dev_open = dev_open, \
	197	.dev_close = dev_close, \
	198	.dev_acquisition_start = dev_acquisition_start, \
	199	.dev_acquisition_stop = dev_acquisition_stop, \
	200	.context = NULL, \
	201	}, \
	202	VENDOR, MODEL, BAUDRATE, PACKETSIZE, \
	203	VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
	204	}).di
	205
	206	SR_REGISTER_DEV_DRIVER_LIST(uni_t_dmm_drivers,
	207	DMM(
	208	"tecpel-dmm-8061", fs9721,
	209	"Tecpel", "DMM-8061", 2400,
	210	FS9721_PACKET_SIZE,
	211	sr_fs9721_packet_valid, sr_fs9721_parse,
	212	sr_fs9721_00_temp_c
	213	),
	214	DMM(
	215	"uni-t-ut372", ut372,
	216	"UNI-T", "UT372", 2400,
	217	UT372_PACKET_SIZE,
	218	sr_ut372_packet_valid, sr_ut372_parse,
	219	NULL
	220	),
	221	DMM(
	222	"uni-t-ut60a", fs9721,
	223	"UNI-T", "UT60A", 2400,
	224	FS9721_PACKET_SIZE,
	225	sr_fs9721_packet_valid, sr_fs9721_parse,
	226	NULL
	227	),
	228	DMM(
	229	"uni-t-ut60e", fs9721,
	230	"UNI-T", "UT60E", 2400,
	231	FS9721_PACKET_SIZE,
	232	sr_fs9721_packet_valid, sr_fs9721_parse,
	233	sr_fs9721_00_temp_c
	234	),
	235	DMM(
	236	"uni-t-ut60g", es519xx,
	237	/* The baudrate is actually 19230, see "Note 1" below. */
	238	"UNI-T", "UT60G", 19200,
	239	ES519XX_11B_PACKET_SIZE,
	240	sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
	241	NULL
	242	),
	243	DMM(
	244	"uni-t-ut61b", fs9922,
	245	"UNI-T", "UT61B", 2400,
	246	FS9922_PACKET_SIZE,
	247	sr_fs9922_packet_valid, sr_fs9922_parse,
	248	NULL
	249	),
	250	DMM(
	251	"uni-t-ut61c", fs9922,
	252	"UNI-T", "UT61C", 2400,
	253	FS9922_PACKET_SIZE,
	254	sr_fs9922_packet_valid, sr_fs9922_parse,
	255	NULL
	256	),
	257	DMM(
	258	"uni-t-ut61d", fs9922,
	259	"UNI-T", "UT61D", 2400,
	260	FS9922_PACKET_SIZE,
	261	sr_fs9922_packet_valid, sr_fs9922_parse,
	262	NULL
	263	),
	264	DMM(
	265	"uni-t-ut61e", es519xx,
	266	/* The baudrate is actually 19230, see "Note 1" below. */
	267	"UNI-T", "UT61E", 19200,
	268	ES519XX_14B_PACKET_SIZE,
	269	sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
	270	NULL
	271	),
	272	DMM(
	273	"uni-t-ut71a", ut71x,
	274	"UNI-T", "UT71A", 2400, UT71X_PACKET_SIZE,
	275	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	276	),
	277	DMM(
	278	"uni-t-ut71b", ut71x,
	279	"UNI-T", "UT71B", 2400, UT71X_PACKET_SIZE,
	280	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	281	),
	282	DMM(
	283	"uni-t-ut71c", ut71x,
	284	"UNI-T", "UT71C", 2400, UT71X_PACKET_SIZE,
	285	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	286	),
	287	DMM(
	288	"uni-t-ut71d", ut71x,
	289	"UNI-T", "UT71D", 2400, UT71X_PACKET_SIZE,
	290	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	291	),
	292	DMM(
	293	"uni-t-ut71e", ut71x,
	294	"UNI-T", "UT71E", 2400, UT71X_PACKET_SIZE,
	295	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	296	),
	297	DMM(
	298	"voltcraft-vc820", fs9721,
	299	"Voltcraft", "VC-820", 2400,
	300	FS9721_PACKET_SIZE,
	301	sr_fs9721_packet_valid, sr_fs9721_parse,
	302	NULL
	303	),
	304	DMM(
	305	"voltcraft-vc830", fs9922,
	306	/*
	307	* Note: The VC830 doesn't set the 'volt' and 'diode' bits of
	308	* the FS9922 protocol. Instead, it only sets the user-defined
	309	* bit "z1" to indicate "diode mode" and "voltage".
	310	*/
	311	"Voltcraft", "VC-830", 2400,
	312	FS9922_PACKET_SIZE,
	313	sr_fs9922_packet_valid, sr_fs9922_parse,
	314	&sr_fs9922_z1_diode
	315	),
	316	DMM(
	317	"voltcraft-vc840", fs9721,
	318	"Voltcraft", "VC-840", 2400,
	319	FS9721_PACKET_SIZE,
	320	sr_fs9721_packet_valid, sr_fs9721_parse,
	321	sr_fs9721_00_temp_c
	322	),
	323	DMM(
	324	"voltcraft-vc870", vc870,
	325	"Voltcraft", "VC-870", 9600, VC870_PACKET_SIZE,
	326	sr_vc870_packet_valid, sr_vc870_parse, NULL
	327	),
	328	DMM(
	329	"voltcraft-vc920", ut71x,
	330	"Voltcraft", "VC-920", 2400, UT71X_PACKET_SIZE,
	331	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	332	),
	333	DMM(
	334	"voltcraft-vc940", ut71x,
	335	"Voltcraft", "VC-940", 2400, UT71X_PACKET_SIZE,
	336	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	337	),
	338	DMM(
	339	"voltcraft-vc960", ut71x,
	340	"Voltcraft", "VC-960", 2400, UT71X_PACKET_SIZE,
	341	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	342	),
	343	DMM(
	344	"tenma-72-7730", ut71x,
	345	"Tenma", "72-7730", 2400,
	346	UT71X_PACKET_SIZE,
	347	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	348	),
	349	DMM(
	350	"tenma-72-7732", ut71x,
	351	"Tenma", "72-7732", 2400,
	352	UT71X_PACKET_SIZE,
	353	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	354	),
	355	DMM(
	356	"tenma-72-9380a", ut71x,
	357	"Tenma", "72-9380A", 2400,
	358	UT71X_PACKET_SIZE,
	359	sr_ut71x_packet_valid, sr_ut71x_parse, NULL
	360	),
	361	DMM(
	362	"tenma-72-7745", es519xx,
	363	"Tenma", "72-7745", 2400,
	364	FS9721_PACKET_SIZE,
	365	sr_fs9721_packet_valid, sr_fs9721_parse,
	366	sr_fs9721_00_temp_c
	367	),
	368	DMM(
	369	"tenma-72-7750", es519xx,
	370	/* The baudrate is actually 19230, see "Note 1" below. */
	371	"Tenma", "72-7750", 19200,
	372	ES519XX_11B_PACKET_SIZE,
	373	sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
	374	NULL
	375	),
	376	);