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Pass driver struct pointer to driver callbacks.
[libsigrok.git] / src / hardware / cem-dt-885x / api.c
CommitLineData
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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
be733919 20#include <string.h>
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21#include "protocol.h"
22
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23#define SERIALCOMM "9600/8n1"
24/* 23ms is the longest interval between tokens. */
25#define MAX_SCAN_TIME 25 * 1000
26
a0e0bb41 27static const uint32_t scanopts[] = {
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28 SR_CONF_CONN,
29};
30
023c73ae 31static const uint32_t drvopts[] = {
7fb8279c 32 SR_CONF_SOUNDLEVELMETER,
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33};
34
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35static const uint32_t devopts[] = {
36 SR_CONF_CONTINUOUS | SR_CONF_SET,
37 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
5827f61b
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38 SR_CONF_SPL_WEIGHT_FREQ | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
39 SR_CONF_SPL_WEIGHT_TIME | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
40 SR_CONF_SPL_MEASUREMENT_RANGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
41 SR_CONF_DATALOG | SR_CONF_GET | SR_CONF_SET,
42 SR_CONF_HOLD_MAX | SR_CONF_GET | SR_CONF_SET,
43 SR_CONF_HOLD_MIN | SR_CONF_GET | SR_CONF_SET,
44 SR_CONF_POWER_OFF | SR_CONF_GET | SR_CONF_SET,
45 SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
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46};
47
be733919
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48static const char *weight_freq[] = {
49 "A",
50 "C",
51};
7fb8279c 52
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53static const char *weight_time[] = {
54 "F",
55 "S",
56};
57
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58static const uint64_t meas_ranges[][2] = {
59 { 30, 130 },
60 { 30, 80 },
61 { 50, 100 },
62 { 80, 130 },
63};
64
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65static const char *data_sources[] = {
66 "Live",
67 "Memory",
68};
8fa9368e 69SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
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70
71
4f840ce9 72static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
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73{
74 return std_init(sr_ctx, di, LOG_PREFIX);
75}
76
4f840ce9 77static GSList *scan(struct sr_dev_driver *di, GSList *options)
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78{
79 struct drv_context *drvc;
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80 struct dev_context *devc;
81 struct sr_config *src;
82 struct sr_serial_dev_inst *serial;
83 struct sr_dev_inst *sdi;
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84 GSList *l, *devices;
85 gint64 start;
86 const char *conn;
87 unsigned char c;
88
89 conn = NULL;
90 for (l = options; l; l = l->next) {
91 src = l->data;
92 if (src->key == SR_CONF_CONN)
93 conn = g_variant_get_string(src->data, NULL);
94 }
95 if (!conn)
96 return NULL;
97
91219afc 98 serial = sr_serial_dev_inst_new(conn, SERIALCOMM);
8fa9368e 99
d7b269da 100 if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
7fb8279c 101 return NULL;
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102
103 devices = NULL;
104 drvc = di->priv;
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105 start = g_get_monotonic_time();
106 while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
d7b269da 107 if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
7fb8279c 108 /* Found one. */
aac29cc1 109 sdi = g_malloc0(sizeof(struct sr_dev_inst));
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110 sdi->status = SR_ST_INACTIVE;
111 sdi->vendor = g_strdup("CEM");
112 sdi->model = g_strdup("DT-885x");
f57d8ffe 113 devc = g_malloc0(sizeof(struct dev_context));
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114 devc->cur_mqflags = 0;
115 devc->recording = -1;
f157b2ee 116 devc->cur_meas_range = 0;
662172d4 117 devc->cur_data_source = DATA_SOURCE_LIVE;
cea26f6e 118 devc->enable_data_source_memory = FALSE;
91219afc 119 sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
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120 sdi->inst_type = SR_INST_SERIAL;
121 sdi->priv = devc;
122 sdi->driver = di;
5e23fcab 123 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
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124 drvc->instances = g_slist_append(drvc->instances, sdi);
125 devices = g_slist_append(devices, sdi);
126 break;
127 }
128 /* It takes about 1ms for a byte to come in. */
129 g_usleep(1000);
130 }
8fa9368e 131
7fb8279c 132 serial_close(serial);
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133
134 return devices;
135}
136
4f840ce9 137static GSList *dev_list(const struct sr_dev_driver *di)
8fa9368e 138{
ce4d26dd 139 return ((struct drv_context *)(di->priv))->instances;
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140}
141
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142static int dev_open(struct sr_dev_inst *sdi)
143{
7fb8279c 144 struct sr_serial_dev_inst *serial;
8fa9368e 145
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146 serial = sdi->conn;
147 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
148 return SR_ERR;
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149
150 sdi->status = SR_ST_ACTIVE;
151
152 return SR_OK;
153}
154
4f840ce9 155static int cleanup(const struct sr_dev_driver *di)
8fa9368e 156{
a6630742 157 return std_dev_clear(di, NULL);
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158}
159
584560f1 160static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
53b4680f 161 const struct sr_channel_group *cg)
8fa9368e 162{
7fb8279c 163 struct dev_context *devc;
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164 GVariant *range[2];
165 uint64_t low, high;
a90e480c 166 int tmp, ret;
8fa9368e 167
53b4680f 168 (void)cg;
d3c74a6f 169
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170 if (!sdi)
171 return SR_ERR_ARG;
8fa9368e 172
7fb8279c 173 devc = sdi->priv;
a90e480c 174 ret = SR_OK;
8fa9368e 175 switch (key) {
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176 case SR_CONF_LIMIT_SAMPLES:
177 *data = g_variant_new_uint64(devc->limit_samples);
178 break;
e1af0e85 179 case SR_CONF_DATALOG:
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180 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
181 *data = g_variant_new_boolean(tmp);
e1af0e85 182 break;
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183 case SR_CONF_SPL_WEIGHT_FREQ:
184 tmp = cem_dt_885x_weight_freq_get(sdi);
185 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
186 *data = g_variant_new_string("A");
187 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
188 *data = g_variant_new_string("C");
189 else
190 return SR_ERR;
191 break;
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192 case SR_CONF_SPL_WEIGHT_TIME:
193 tmp = cem_dt_885x_weight_time_get(sdi);
194 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
195 *data = g_variant_new_string("F");
196 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
197 *data = g_variant_new_string("S");
198 else
199 return SR_ERR;
200 break;
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201 case SR_CONF_HOLD_MAX:
202 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
203 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
204 break;
205 case SR_CONF_HOLD_MIN:
206 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
207 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
208 break;
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209 case SR_CONF_SPL_MEASUREMENT_RANGE:
210 if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
211 range[0] = g_variant_new_uint64(low);
212 range[1] = g_variant_new_uint64(high);
213 *data = g_variant_new_tuple(range, 2);
214 }
215 break;
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216 case SR_CONF_POWER_OFF:
217 *data = g_variant_new_boolean(FALSE);
218 break;
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219 case SR_CONF_DATA_SOURCE:
220 if (devc->cur_data_source == DATA_SOURCE_LIVE)
221 *data = g_variant_new_string("Live");
222 else
223 *data = g_variant_new_string("Memory");
224 break;
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225 default:
226 return SR_ERR_NA;
227 }
228
a90e480c 229 return ret;
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230}
231
584560f1 232static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
53b4680f 233 const struct sr_channel_group *cg)
8fa9368e 234{
7fb8279c 235 struct dev_context *devc;
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236 uint64_t tmp_u64, low, high;
237 unsigned int i;
a90e480c 238 int tmp, ret;
be733919 239 const char *tmp_str;
8fa9368e 240
53b4680f 241 (void)cg;
d3c74a6f 242
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243 if (sdi->status != SR_ST_ACTIVE)
244 return SR_ERR_DEV_CLOSED;
245
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246 if (!(devc = sdi->priv)) {
247 sr_err("sdi->priv was NULL.");
248 return SR_ERR_BUG;
249 }
250
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251 ret = SR_OK;
252 switch (key) {
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253 case SR_CONF_LIMIT_SAMPLES:
254 tmp_u64 = g_variant_get_uint64(data);
255 devc->limit_samples = tmp_u64;
256 ret = SR_OK;
257 break;
e1af0e85 258 case SR_CONF_DATALOG:
0cd9107d 259 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
e1af0e85 260 break;
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261 case SR_CONF_SPL_WEIGHT_FREQ:
262 tmp_str = g_variant_get_string(data, NULL);
263 if (!strcmp(tmp_str, "A"))
264 ret = cem_dt_885x_weight_freq_set(sdi,
265 SR_MQFLAG_SPL_FREQ_WEIGHT_A);
266 else if (!strcmp(tmp_str, "C"))
267 ret = cem_dt_885x_weight_freq_set(sdi,
268 SR_MQFLAG_SPL_FREQ_WEIGHT_C);
269 else
270 return SR_ERR_ARG;
271 break;
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272 case SR_CONF_SPL_WEIGHT_TIME:
273 tmp_str = g_variant_get_string(data, NULL);
274 if (!strcmp(tmp_str, "F"))
275 ret = cem_dt_885x_weight_time_set(sdi,
276 SR_MQFLAG_SPL_TIME_WEIGHT_F);
277 else if (!strcmp(tmp_str, "S"))
278 ret = cem_dt_885x_weight_time_set(sdi,
279 SR_MQFLAG_SPL_TIME_WEIGHT_S);
280 else
281 return SR_ERR_ARG;
282 break;
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283 case SR_CONF_HOLD_MAX:
284 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
285 ret = cem_dt_885x_holdmode_set(sdi, tmp);
286 break;
287 case SR_CONF_HOLD_MIN:
288 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
289 ret = cem_dt_885x_holdmode_set(sdi, tmp);
290 break;
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291 case SR_CONF_SPL_MEASUREMENT_RANGE:
292 g_variant_get(data, "(tt)", &low, &high);
293 ret = SR_ERR_ARG;
294 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
295 if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
296 ret = cem_dt_885x_meas_range_set(sdi, low, high);
297 break;
298 }
299 }
300 break;
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301 case SR_CONF_POWER_OFF:
302 if (g_variant_get_boolean(data))
303 ret = cem_dt_885x_power_off(sdi);
304 break;
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305 case SR_CONF_DATA_SOURCE:
306 tmp_str = g_variant_get_string(data, NULL);
307 if (!strcmp(tmp_str, "Live"))
308 devc->cur_data_source = DATA_SOURCE_LIVE;
309 else if (!strcmp(tmp_str, "Memory"))
310 devc->cur_data_source = DATA_SOURCE_MEMORY;
311 else
312 return SR_ERR;
cea26f6e 313 devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
662172d4 314 break;
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315 default:
316 ret = SR_ERR_NA;
317 }
318
319 return ret;
320}
321
584560f1 322static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
53b4680f 323 const struct sr_channel_group *cg)
8fa9368e 324{
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325 GVariant *tuple, *range[2];
326 GVariantBuilder gvb;
327 unsigned int i;
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328 int ret;
329
53b4680f 330 (void)cg;
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331
332 ret = SR_OK;
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333 if (!sdi) {
334 switch (key) {
335 case SR_CONF_SCAN_OPTIONS:
336 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
337 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
338 break;
339 case SR_CONF_DEVICE_OPTIONS:
340 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
023c73ae 341 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
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342 break;
343 default:
344 return SR_ERR_NA;
345 }
346 } else {
347 switch (key) {
348 case SR_CONF_DEVICE_OPTIONS:
349 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
023c73ae 350 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
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351 case SR_CONF_SPL_WEIGHT_FREQ:
352 *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
353 break;
354 case SR_CONF_SPL_WEIGHT_TIME:
355 *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
356 break;
357 case SR_CONF_SPL_MEASUREMENT_RANGE:
358 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
359 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
360 range[0] = g_variant_new_uint64(meas_ranges[i][0]);
361 range[1] = g_variant_new_uint64(meas_ranges[i][1]);
362 tuple = g_variant_new_tuple(range, 2);
363 g_variant_builder_add_value(&gvb, tuple);
364 }
365 *data = g_variant_builder_end(&gvb);
366 break;
367 case SR_CONF_DATA_SOURCE:
368 *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
369 break;
370 default:
371 return SR_ERR_NA;
f157b2ee 372 }
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373 }
374
375 return ret;
376}
377
e37c4b39 378static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
8fa9368e 379{
e37c4b39
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380 struct dev_context *devc;
381 struct sr_serial_dev_inst *serial;
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382
383 if (sdi->status != SR_ST_ACTIVE)
384 return SR_ERR_DEV_CLOSED;
385
e37c4b39
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386 if (!(devc = sdi->priv)) {
387 sr_err("sdi->priv was NULL.");
388 return SR_ERR_BUG;
389 }
390
391 devc->cb_data = cb_data;
392 devc->state = ST_INIT;
393 devc->num_samples = 0;
394 devc->buf_len = 0;
395
396 /* Send header packet to the session bus. */
397 std_session_send_df_header(cb_data, LOG_PREFIX);
398
399 /* Poll every 100ms, or whenever some data comes in. */
400 serial = sdi->conn;
102f1239
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401 serial_source_add(sdi->session, serial, G_IO_IN, 150,
402 cem_dt_885x_receive_data, (void *)sdi);
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403
404 return SR_OK;
405}
406
407static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
408{
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409 if (sdi->status != SR_ST_ACTIVE)
410 return SR_ERR_DEV_CLOSED;
411
d43b0908 412 return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
e37c4b39 413 sdi->conn, LOG_PREFIX);
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414}
415
416SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
417 .name = "cem-dt-885x",
418 .longname = "CEM DT-885x",
419 .api_version = 1,
420 .init = init,
421 .cleanup = cleanup,
422 .scan = scan,
423 .dev_list = dev_list,
a6630742 424 .dev_clear = NULL,
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425 .config_get = config_get,
426 .config_set = config_set,
427 .config_list = config_list,
428 .dev_open = dev_open,
bf2c987f 429 .dev_close = std_serial_dev_close,
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430 .dev_acquisition_start = dev_acquisition_start,
431 .dev_acquisition_stop = dev_acquisition_stop,
432 .priv = NULL,
433};