2 * This file is part of the libsigrok project.
4 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
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.
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.
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/>.
24 #ifndef LIBSIGROK_LIBSIGROK_INTERNAL_H
25 #define LIBSIGROK_LIBSIGROK_INTERNAL_H
29 #include "config.h" /* Needed for HAVE_LIBUSB_1_0 and others. */
30 #ifdef HAVE_LIBUSB_1_0
33 #ifdef HAVE_LIBSERIALPORT
34 #include <libserialport.h>
40 * libsigrok private header file, only to be used internally.
43 /*--- Macros ----------------------------------------------------------------*/
46 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
49 #ifndef ARRAY_AND_SIZE
50 #define ARRAY_AND_SIZE(a) (a), ARRAY_SIZE(a)
54 * Read a 16 bits big endian integer out of memory.
55 * @param x a pointer to the input memory
56 * @return the corresponding integer
58 #define RB16(x) (((unsigned)((const uint8_t*)(x))[0] << 8) | \
59 (unsigned)((const uint8_t*)(x))[1])
62 * Read a 16 bits little endian integer out of memory.
63 * @param x a pointer to the input memory
64 * @return the corresponding integer
66 #define RL16(x) (((unsigned)((const uint8_t*)(x))[1] << 8) | \
67 (unsigned)((const uint8_t*)(x))[0])
70 * Read a 32 bits big endian integer out of memory.
71 * @param x a pointer to the input memory
72 * @return the corresponding integer
74 #define RB32(x) (((unsigned)((const uint8_t*)(x))[0] << 24) | \
75 ((unsigned)((const uint8_t*)(x))[1] << 16) | \
76 ((unsigned)((const uint8_t*)(x))[2] << 8) | \
77 (unsigned)((const uint8_t*)(x))[3])
80 * Read a 32 bits little endian integer out of memory.
81 * @param x a pointer to the input memory
82 * @return the corresponding integer
84 #define RL32(x) (((unsigned)((const uint8_t*)(x))[3] << 24) | \
85 ((unsigned)((const uint8_t*)(x))[2] << 16) | \
86 ((unsigned)((const uint8_t*)(x))[1] << 8) | \
87 (unsigned)((const uint8_t*)(x))[0])
89 /* Portability fixes for FreeBSD. */
91 #define LIBUSB_CLASS_APPLICATION 0xfe
92 #define libusb_handle_events_timeout_completed(ctx, tv, c) \
93 libusb_handle_events_timeout(ctx, tv)
97 #ifdef HAVE_LIBUSB_1_0
98 libusb_context *libusb_ctx;
99 gboolean usb_source_present;
102 gboolean usb_thread_running;
106 sr_receive_data_callback_t usb_cb;
112 #ifdef HAVE_LIBUSB_1_0
113 /** USB device instance */
114 struct sr_usb_dev_inst {
117 /** Device address on USB bus */
119 /** libusb device handle */
120 struct libusb_device_handle *devhdl;
124 #ifdef HAVE_LIBSERIALPORT
125 #define SERIAL_PARITY_NONE SP_PARITY_NONE
126 #define SERIAL_PARITY_EVEN SP_PARITY_EVEN
127 #define SERIAL_PARITY_ODD SP_PARITY_ODD
128 struct sr_serial_dev_inst {
129 /** Port name, e.g. '/dev/tty42'. */
131 /** Comm params for serial_set_paramstr(). */
133 /** Port is non-blocking. */
135 /** libserialport port handle */
136 struct sp_port *data;
137 /** libserialport event set */
138 struct sp_event_set *event_set;
139 /** GPollFDs for event polling */
144 struct sr_usbtmc_dev_inst {
149 /* Private driver context. */
151 /** sigrok context */
152 struct sr_context *sr_ctx;
156 /*--- log.c -----------------------------------------------------------------*/
158 SR_PRIV int sr_log(int loglevel, const char *format, ...);
159 SR_PRIV int sr_spew(const char *format, ...);
160 SR_PRIV int sr_dbg(const char *format, ...);
161 SR_PRIV int sr_info(const char *format, ...);
162 SR_PRIV int sr_warn(const char *format, ...);
163 SR_PRIV int sr_err(const char *format, ...);
165 /* Message logging helpers with subsystem-specific prefix string. */
166 #ifndef NO_LOG_WRAPPERS
167 #define sr_log(l, s, args...) sr_log(l, "%s: " s, LOG_PREFIX, ## args)
168 #define sr_spew(s, args...) sr_spew("%s: " s, LOG_PREFIX, ## args)
169 #define sr_dbg(s, args...) sr_dbg("%s: " s, LOG_PREFIX, ## args)
170 #define sr_info(s, args...) sr_info("%s: " s, LOG_PREFIX, ## args)
171 #define sr_warn(s, args...) sr_warn("%s: " s, LOG_PREFIX, ## args)
172 #define sr_err(s, args...) sr_err("%s: " s, LOG_PREFIX, ## args)
175 /*--- device.c --------------------------------------------------------------*/
177 SR_PRIV struct sr_probe *sr_probe_new(int index, int type,
178 gboolean enabled, const char *name);
180 /* Generic device instances */
181 SR_PRIV struct sr_dev_inst *sr_dev_inst_new(int index, int status,
182 const char *vendor, const char *model, const char *version);
183 SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi);
185 #ifdef HAVE_LIBUSB_1_0
186 /* USB-specific instances */
187 SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus,
188 uint8_t address, struct libusb_device_handle *hdl);
189 SR_PRIV GSList *sr_usb_find_usbtmc(libusb_context *usb_ctx);
190 SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb);
193 #ifdef HAVE_LIBSERIALPORT
194 /* Serial-specific instances */
195 SR_PRIV struct sr_serial_dev_inst *sr_serial_dev_inst_new(const char *port,
196 const char *serialcomm);
197 SR_PRIV void sr_serial_dev_inst_free(struct sr_serial_dev_inst *serial);
200 /* USBTMC-specific instances */
201 SR_PRIV struct sr_usbtmc_dev_inst *sr_usbtmc_dev_inst_new(const char *device);
202 SR_PRIV void sr_usbtmc_dev_inst_free(struct sr_usbtmc_dev_inst *usbtmc);
204 /*--- hwdriver.c ------------------------------------------------------------*/
206 SR_PRIV void sr_hw_cleanup_all(void);
207 SR_PRIV struct sr_config *sr_config_new(int key, GVariant *data);
208 SR_PRIV void sr_config_free(struct sr_config *src);
209 SR_PRIV int sr_source_remove(int fd);
210 SR_PRIV int sr_source_add(int fd, int events, int timeout,
211 sr_receive_data_callback_t cb, void *cb_data);
213 /*--- session.c -------------------------------------------------------------*/
216 /** List of struct sr_dev pointers. */
218 /** List of struct datafeed_callback pointers. */
219 GSList *datafeed_callbacks;
223 unsigned int num_sources;
226 * Both "sources" and "pollfds" are of the same size and contain pairs
227 * of descriptor and callback function. We can not embed the GPollFD
228 * into the source struct since we want to be able to pass the array
229 * of all poll descriptors to g_poll().
231 struct source *sources;
236 * These are our synchronization primitives for stopping the session in
237 * an async fashion. We need to make sure the session is stopped from
238 * within the session thread itself.
240 /** Mutex protecting access to abort_session. */
242 /** Abort current session. See sr_session_stop(). */
243 gboolean abort_session;
246 SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
247 const struct sr_datafeed_packet *packet);
248 SR_PRIV int sr_session_stop_sync(void);
249 SR_PRIV int sr_sessionfile_check(const char *filename);
251 /*--- std.c -----------------------------------------------------------------*/
253 typedef int (*dev_close_t)(struct sr_dev_inst *sdi);
254 typedef void (*std_dev_clear_t)(void *priv);
256 SR_PRIV int std_init(struct sr_context *sr_ctx, struct sr_dev_driver *di,
258 #ifdef HAVE_LIBSERIALPORT
259 SR_PRIV int std_serial_dev_open(struct sr_dev_inst *sdi);
260 SR_PRIV int std_serial_dev_acquisition_stop(struct sr_dev_inst *sdi,
261 void *cb_data, dev_close_t dev_close_fn,
262 struct sr_serial_dev_inst *serial, const char *prefix);
264 SR_PRIV int std_session_send_df_header(const struct sr_dev_inst *sdi,
266 SR_PRIV int std_dev_clear(const struct sr_dev_driver *driver,
267 std_dev_clear_t clear_private);
268 SR_PRIV int std_serial_dev_close(struct sr_dev_inst *sdi);
270 /*--- strutil.c -------------------------------------------------------------*/
272 SR_PRIV int sr_atol(const char *str, long *ret);
273 SR_PRIV int sr_atoi(const char *str, int *ret);
274 SR_PRIV int sr_atod(const char *str, double *ret);
275 SR_PRIV int sr_atof(const char *str, float *ret);
276 SR_PRIV int sr_atof_ascii(const char *str, float *ret);
278 /*--- hardware/common/serial.c ----------------------------------------------*/
280 #ifdef HAVE_LIBSERIALPORT
287 typedef gboolean (*packet_valid_t)(const uint8_t *buf);
289 SR_PRIV int serial_open(struct sr_serial_dev_inst *serial, int flags);
290 SR_PRIV int serial_close(struct sr_serial_dev_inst *serial);
291 SR_PRIV int serial_flush(struct sr_serial_dev_inst *serial);
292 SR_PRIV int serial_write(struct sr_serial_dev_inst *serial,
293 const void *buf, size_t count);
294 SR_PRIV int serial_write_blocking(struct sr_serial_dev_inst *serial,
295 const void *buf, size_t count);
296 SR_PRIV int serial_write_nonblocking(struct sr_serial_dev_inst *serial,
297 const void *buf, size_t count);
298 SR_PRIV int serial_read(struct sr_serial_dev_inst *serial, void *buf,
300 SR_PRIV int serial_read_blocking(struct sr_serial_dev_inst *serial, void *buf,
302 SR_PRIV int serial_read_nonblocking(struct sr_serial_dev_inst *serial, void *buf,
304 SR_PRIV int serial_set_params(struct sr_serial_dev_inst *serial, int baudrate,
305 int bits, int parity, int stopbits, int flowcontrol, int rts, int dtr);
306 SR_PRIV int serial_set_paramstr(struct sr_serial_dev_inst *serial,
307 const char *paramstr);
308 SR_PRIV int serial_readline(struct sr_serial_dev_inst *serial, char **buf,
309 int *buflen, gint64 timeout_ms);
310 SR_PRIV int serial_stream_detect(struct sr_serial_dev_inst *serial,
311 uint8_t *buf, size_t *buflen,
312 size_t packet_size, packet_valid_t is_valid,
313 uint64_t timeout_ms, int baudrate);
314 SR_PRIV int sr_serial_extract_options(GSList *options, const char **serial_device,
315 const char **serial_options);
316 SR_PRIV int serial_source_add(struct sr_serial_dev_inst *serial, int events,
317 int timeout, sr_receive_data_callback_t cb, void *cb_data);
318 SR_PRIV int serial_source_remove(struct sr_serial_dev_inst *serial);
321 /*--- hardware/common/ezusb.c -----------------------------------------------*/
323 #ifdef HAVE_LIBUSB_1_0
324 SR_PRIV int ezusb_reset(struct libusb_device_handle *hdl, int set_clear);
325 SR_PRIV int ezusb_install_firmware(libusb_device_handle *hdl,
326 const char *filename);
327 SR_PRIV int ezusb_upload_firmware(libusb_device *dev, int configuration,
328 const char *filename);
331 /*--- hardware/common/usb.c -------------------------------------------------*/
333 #ifdef HAVE_LIBUSB_1_0
334 SR_PRIV GSList *sr_usb_find(libusb_context *usb_ctx, const char *conn);
335 SR_PRIV int sr_usb_open(libusb_context *usb_ctx, struct sr_usb_dev_inst *usb);
336 SR_PRIV int usb_source_add(struct sr_context *ctx, int timeout,
337 sr_receive_data_callback_t cb, void *cb_data);
338 SR_PRIV int usb_source_remove(struct sr_context *ctx);
341 /*--- hardware/common/scpi.c ------------------------------------------------*/
343 #define SCPI_CMD_IDN "*IDN?"
344 #define SCPI_CMD_OPC "*OPC?"
347 SCPI_CMD_SET_TRIGGER_SOURCE,
348 SCPI_CMD_SET_TIMEBASE,
349 SCPI_CMD_SET_VERTICAL_DIV,
350 SCPI_CMD_SET_TRIGGER_SLOPE,
351 SCPI_CMD_SET_COUPLING,
352 SCPI_CMD_SET_HORIZ_TRIGGERPOS,
353 SCPI_CMD_GET_ANALOG_CHAN_STATE,
354 SCPI_CMD_GET_DIG_CHAN_STATE,
355 SCPI_CMD_GET_TIMEBASE,
356 SCPI_CMD_GET_VERTICAL_DIV,
357 SCPI_CMD_GET_VERTICAL_OFFSET,
358 SCPI_CMD_GET_TRIGGER_SOURCE,
359 SCPI_CMD_GET_HORIZ_TRIGGERPOS,
360 SCPI_CMD_GET_TRIGGER_SLOPE,
361 SCPI_CMD_GET_COUPLING,
362 SCPI_CMD_SET_ANALOG_CHAN_STATE,
363 SCPI_CMD_SET_DIG_CHAN_STATE,
364 SCPI_CMD_GET_DIG_POD_STATE,
365 SCPI_CMD_SET_DIG_POD_STATE,
366 SCPI_CMD_GET_ANALOG_DATA,
367 SCPI_CMD_GET_DIG_DATA,
370 struct sr_scpi_hw_info {
374 char *firmware_version;
377 struct sr_scpi_dev_inst {
381 int (*dev_inst_new)(void *priv, const char *resource, char **params,
382 const char *serialcomm);
383 int (*open)(void *priv);
384 int (*source_add)(void *priv, int events,
385 int timeout, sr_receive_data_callback_t cb, void *cb_data);
386 int (*source_remove)(void *priv);
387 int (*send)(void *priv, const char *command);
388 int (*read_begin)(void *priv);
389 int (*read_data)(void *priv, char *buf, int maxlen);
390 int (*read_complete)(void *priv);
391 int (*close)(void *priv);
392 void (*free)(void *priv);
396 SR_PRIV struct sr_scpi_dev_inst *scpi_dev_inst_new(const char *resource,
397 const char *serialcomm);
398 SR_PRIV int sr_scpi_open(struct sr_scpi_dev_inst *scpi);
399 SR_PRIV int sr_scpi_source_add(struct sr_scpi_dev_inst *scpi, int events,
400 int timeout, sr_receive_data_callback_t cb, void *cb_data);
401 SR_PRIV int sr_scpi_source_remove(struct sr_scpi_dev_inst *scpi);
402 SR_PRIV int sr_scpi_send(struct sr_scpi_dev_inst *scpi,
403 const char *format, ...);
404 SR_PRIV int sr_scpi_send_variadic(struct sr_scpi_dev_inst *scpi,
405 const char *format, va_list args);
406 SR_PRIV int sr_scpi_read_begin(struct sr_scpi_dev_inst *scpi);
407 SR_PRIV int sr_scpi_read_data(struct sr_scpi_dev_inst *scpi, char *buf, int maxlen);
408 SR_PRIV int sr_scpi_read_complete(struct sr_scpi_dev_inst *scpi);
409 SR_PRIV int sr_scpi_close(struct sr_scpi_dev_inst *scpi);
410 SR_PRIV void sr_scpi_free(struct sr_scpi_dev_inst *scpi);
412 SR_PRIV int sr_scpi_get_string(struct sr_scpi_dev_inst *scpi,
413 const char *command, char **scpi_response);
414 SR_PRIV int sr_scpi_get_bool(struct sr_scpi_dev_inst *scpi,
415 const char *command, gboolean *scpi_response);
416 SR_PRIV int sr_scpi_get_int(struct sr_scpi_dev_inst *scpi,
417 const char *command, int *scpi_response);
418 SR_PRIV int sr_scpi_get_float(struct sr_scpi_dev_inst *scpi,
419 const char *command, float *scpi_response);
420 SR_PRIV int sr_scpi_get_double(struct sr_scpi_dev_inst *scpi,
421 const char *command, double *scpi_response);
422 SR_PRIV int sr_scpi_get_opc(struct sr_scpi_dev_inst *scpi);
423 SR_PRIV int sr_scpi_get_floatv(struct sr_scpi_dev_inst *scpi,
424 const char *command, GArray **scpi_response);
425 SR_PRIV int sr_scpi_get_uint8v(struct sr_scpi_dev_inst *scpi,
426 const char *command, GArray **scpi_response);
427 SR_PRIV int sr_scpi_get_hw_id(struct sr_scpi_dev_inst *scpi,
428 struct sr_scpi_hw_info **scpi_response);
429 SR_PRIV void sr_scpi_hw_info_free(struct sr_scpi_hw_info *hw_info);
431 /*--- hardware/common/dmm/es519xx.c -----------------------------------------*/
434 * All 11-byte es519xx chips repeat each block twice for each conversion cycle
435 * so always read 2 blocks at a time.
437 #define ES519XX_11B_PACKET_SIZE (11 * 2)
438 #define ES519XX_14B_PACKET_SIZE 14
440 struct es519xx_info {
441 gboolean is_judge, is_voltage, is_auto, is_micro, is_current;
442 gboolean is_milli, is_resistance, is_continuity, is_diode;
443 gboolean is_frequency, is_rpm, is_capacitance, is_duty_cycle;
444 gboolean is_temperature, is_celsius, is_fahrenheit;
445 gboolean is_adp0, is_adp1, is_adp2, is_adp3;
446 gboolean is_sign, is_batt, is_ol, is_pmax, is_pmin, is_apo;
447 gboolean is_dc, is_ac, is_vahz, is_min, is_max, is_rel, is_hold;
448 gboolean is_digit4, is_ul, is_vasel, is_vbar, is_lpf1, is_lpf0, is_rmr;
451 gboolean alt_functions, fivedigits, clampmeter, selectable_lpf;
454 SR_PRIV gboolean sr_es519xx_2400_11b_packet_valid(const uint8_t *buf);
455 SR_PRIV int sr_es519xx_2400_11b_parse(const uint8_t *buf, float *floatval,
456 struct sr_datafeed_analog *analog, void *info);
457 SR_PRIV gboolean sr_es519xx_2400_11b_altfn_packet_valid(const uint8_t *buf);
458 SR_PRIV int sr_es519xx_2400_11b_altfn_parse(const uint8_t *buf,
459 float *floatval, struct sr_datafeed_analog *analog, void *info);
460 SR_PRIV gboolean sr_es519xx_19200_11b_5digits_packet_valid(const uint8_t *buf);
461 SR_PRIV int sr_es519xx_19200_11b_5digits_parse(const uint8_t *buf,
462 float *floatval, struct sr_datafeed_analog *analog, void *info);
463 SR_PRIV gboolean sr_es519xx_19200_11b_clamp_packet_valid(const uint8_t *buf);
464 SR_PRIV int sr_es519xx_19200_11b_clamp_parse(const uint8_t *buf,
465 float *floatval, struct sr_datafeed_analog *analog, void *info);
466 SR_PRIV gboolean sr_es519xx_19200_11b_packet_valid(const uint8_t *buf);
467 SR_PRIV int sr_es519xx_19200_11b_parse(const uint8_t *buf, float *floatval,
468 struct sr_datafeed_analog *analog, void *info);
469 SR_PRIV gboolean sr_es519xx_19200_14b_packet_valid(const uint8_t *buf);
470 SR_PRIV int sr_es519xx_19200_14b_parse(const uint8_t *buf, float *floatval,
471 struct sr_datafeed_analog *analog, void *info);
472 SR_PRIV gboolean sr_es519xx_19200_14b_sel_lpf_packet_valid(const uint8_t *buf);
473 SR_PRIV int sr_es519xx_19200_14b_sel_lpf_parse(const uint8_t *buf,
474 float *floatval, struct sr_datafeed_analog *analog, void *info);
476 /*--- hardware/common/dmm/fs9922.c ------------------------------------------*/
478 #define FS9922_PACKET_SIZE 14
481 gboolean is_auto, is_dc, is_ac, is_rel, is_hold, is_bpn, is_z1, is_z2;
482 gboolean is_max, is_min, is_apo, is_bat, is_nano, is_z3, is_micro;
483 gboolean is_milli, is_kilo, is_mega, is_beep, is_diode, is_percent;
484 gboolean is_z4, is_volt, is_ampere, is_ohm, is_hfe, is_hertz, is_farad;
485 gboolean is_celsius, is_fahrenheit;
486 int bargraph_sign, bargraph_value;
489 SR_PRIV gboolean sr_fs9922_packet_valid(const uint8_t *buf);
490 SR_PRIV int sr_fs9922_parse(const uint8_t *buf, float *floatval,
491 struct sr_datafeed_analog *analog, void *info);
492 SR_PRIV void sr_fs9922_z1_diode(struct sr_datafeed_analog *analog, void *info);
494 /*--- hardware/common/dmm/fs9721.c ------------------------------------------*/
496 #define FS9721_PACKET_SIZE 14
499 gboolean is_ac, is_dc, is_auto, is_rs232, is_micro, is_nano, is_kilo;
500 gboolean is_diode, is_milli, is_percent, is_mega, is_beep, is_farad;
501 gboolean is_ohm, is_rel, is_hold, is_ampere, is_volt, is_hz, is_bat;
502 gboolean is_c2c1_11, is_c2c1_10, is_c2c1_01, is_c2c1_00, is_sign;
505 SR_PRIV gboolean sr_fs9721_packet_valid(const uint8_t *buf);
506 SR_PRIV int sr_fs9721_parse(const uint8_t *buf, float *floatval,
507 struct sr_datafeed_analog *analog, void *info);
508 SR_PRIV void sr_fs9721_00_temp_c(struct sr_datafeed_analog *analog, void *info);
509 SR_PRIV void sr_fs9721_01_temp_c(struct sr_datafeed_analog *analog, void *info);
510 SR_PRIV void sr_fs9721_10_temp_c(struct sr_datafeed_analog *analog, void *info);
511 SR_PRIV void sr_fs9721_01_10_temp_f_c(struct sr_datafeed_analog *analog, void *info);
512 SR_PRIV void sr_fs9721_max_c_min(struct sr_datafeed_analog *analog, void *info);
514 /*--- hardware/common/dmm/m2110.c -----------------------------------------*/
516 #define BBCGM_M2110_PACKET_SIZE 9
518 SR_PRIV gboolean sr_m2110_packet_valid(const uint8_t *buf);
519 SR_PRIV int sr_m2110_parse(const uint8_t *buf, float *floatval,
520 struct sr_datafeed_analog *analog, void *info);
522 /*--- hardware/common/dmm/metex14.c -----------------------------------------*/
524 #define METEX14_PACKET_SIZE 14
526 struct metex14_info {
527 gboolean is_ac, is_dc, is_resistance, is_capacity, is_temperature;
528 gboolean is_diode, is_frequency, is_ampere, is_volt, is_farad;
529 gboolean is_hertz, is_ohm, is_celsius, is_pico, is_nano, is_micro;
530 gboolean is_milli, is_kilo, is_mega, is_gain, is_decibel, is_hfe;
531 gboolean is_unitless;
534 #ifdef HAVE_LIBSERIALPORT
535 SR_PRIV int sr_metex14_packet_request(struct sr_serial_dev_inst *serial);
537 SR_PRIV gboolean sr_metex14_packet_valid(const uint8_t *buf);
538 SR_PRIV int sr_metex14_parse(const uint8_t *buf, float *floatval,
539 struct sr_datafeed_analog *analog, void *info);
541 /*--- hardware/common/dmm/rs9lcd.c ------------------------------------------*/
543 #define RS9LCD_PACKET_SIZE 9
545 /* Dummy info struct. The parser does not use it. */
546 struct rs9lcd_info { int dummy; };
548 SR_PRIV gboolean sr_rs9lcd_packet_valid(const uint8_t *buf);
549 SR_PRIV int sr_rs9lcd_parse(const uint8_t *buf, float *floatval,
550 struct sr_datafeed_analog *analog, void *info);