touchpad3  2.0.0.0
touchpad3.h
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22 
28 #ifndef TOUCHPAD3_H
29 #define TOUCHPAD3_H
30 
31 #ifdef __cplusplus
32 extern "C"{
33 #endif
34 
39 #ifdef PREINIT_SUPPORTED
40 #include "preinit.h"
41 #endif
42 
43 #ifdef MikroCCoreVersion
44  #if MikroCCoreVersion >= 1
45  #include "delays.h"
46  #endif
47 #endif
48 
49 #include "drv_digital_out.h"
50 #include "drv_digital_in.h"
51 #include "drv_i2c_master.h"
52 
73 #define TOUCHPAD3_GENERAL_INDEX_LOCATION 0x00
74 
79 #define TOUCHPAD3_GENERAL_RX_CH_ADD 0x01
80 #define TOUCHPAD3_GENERAL_TX_CH_ADD 0x02
81 #define TOUCHPAD3_GENERAL_RX_SC_L_ADD 0x04
82 #define TOUCHPAD3_GENERAL_RX_SC_H_ADD 0x05
83 #define TOUCHPAD3_GENERAL_TX_SC_L_ADD 0x06
84 #define TOUCHPAD3_GENERAL_TX_SC_H_ADD 0x07
85 
91 #define TOUCHPAD3_GENERAL_RX_CH 0x05
92 #define TOUCHPAD3_GENERAL_TX_CH 0x04
93 #define TOUCHPAD3_GENERAL_RX_SC_L 0x33
94 #define TOUCHPAD3_GENERAL_RX_SC_H 0x33
95 #define TOUCHPAD3_GENERAL_TX_SC_L 0x00
96 #define TOUCHPAD3_GENERAL_TX_SC_H 0x40
97 
102 #define TOUCHPAD3_DECODING_INDEX_LOCATION 0x30
103 
108 #define TOUCHPAD3_DEC_FLIP_STATE_ADD 0x00
109 #define TOUCHPAD3_DEC_NUM_AVG_ADD 0x01
110 #define TOUCHPAD3_DEC_MIN_TOUCH_DISTANCE_ADD 0x04
111 
116 #define TOUCHPAD3_DEC_FLIP_STATE 0x04
117 #define TOUCHPAD3_DEC_NUM_AVG 0x08
118 #define TOUCHPAD3_DEC_MIN_TOUCH_DISTANCE 0x01
119  // touchpad3_reg
121 
136 #define TOUCHPAD3_REG_WRITE 0x55, 0x04, 0x15
137 
138 #define TOUCHPAD3_RX_MAP_INDEX_ADD 0x01
139 #define TOUCHPAD3_RX_CH1_ADD 0x00
140 #define TOUCHPAD3_RX_CH2_ADD 0x01
141 #define TOUCHPAD3_RX_CH3_ADD 0x02
142 #define TOUCHPAD3_RX_CH4_ADD 0x03
143 #define TOUCHPAD3_RX_CH5_ADD 0x04
144 
149 #define TOUCHPAD3_RX_CH1 0x08
150 #define TOUCHPAD3_RX_CH2 0x07
151 #define TOUCHPAD3_RX_CH3 0x06
152 #define TOUCHPAD3_RX_CH4 0x05
153 #define TOUCHPAD3_RX_CH5 0x04
154 
159 #define TOUCHPAD3_TX_MAP_INDEX_ADD 0x02
160 #define TOUCHPAD3_TX_CH1_ADD 0x00
161 #define TOUCHPAD3_TX_CH2_ADD 0x01
162 #define TOUCHPAD3_TX_CH3_ADD 0x02
163 #define TOUCHPAD3_TX_CH4_ADD 0x03
164 
169 #define TOUCHPAD3_TX_CH1 0x0D
170 #define TOUCHPAD3_TX_CH2 0x06
171 #define TOUCHPAD3_TX_CH3 0x03
172 #define TOUCHPAD3_TX_CH4 0x02
173 
178 #define TOUCHPAD3_SET_COMMAND 0x55
179 #define TOUCHPAD3_CMD_ENABLE_TOUCH 0x00
180 #define TOUCHPAD3_CMD_DISABLE_TOUCH 0x01
181 #define TOUCHPAD3_CMD_SCAN_BASELINE 0x14
182 #define TOUCHPAD3_CMD_WRITE_REGISTER 0x15
183 #define TOUCHPAD3_CMD_READ_REGISTER 0x16
184 #define TOUCHPAD3_CMD_WRITE_NVRAM 0x17
185 #define TOUCHPAD3_CMD_SOFTWARE_SLEEP 0x18
186 #define TOUCHPAD3_CMD_ERASE_NVRAM 0x19
187 #define TOUCHPAD3_CMD_MANUFACTURING_TEST 0x1A
188 #define TOUCHPAD3_CMD_DEVICE_ID 0x83
189 
194 #define TOUCHPAD3_GENERAL_INDEX_BYTE 0x00
195 #define TOUCHPAD3_SENSOR_MAP_RX_INDEX_BYTE 0x01
196 #define TOUCHPAD3_SENSOR_MAP_TX_INDEX_BYTE 0x02
197 #define TOUCHPAD3_SELF_INDEX_BYTE 0x10
198 #define TOUCHPAD3_MUTUAL_INDEX_BYTE 0x20
199 #define TOUCHPAD3_DECODING_INDEX_BYTE 0x30
200 #define TOUCHPAD3_GESTURES_INDEX_BYTE 0x50
201 #define TOUCHPAD3_CONFIGURATION_INDEX_BYTE 0xF0
202 #define TOUCHPAD3_I_O_STATUS_INDEX_BYTE 0xF1
203 
208 #define TOUCHPAD3_GENERAL_OFFSET_BYTE_RX_CHANNELS 0x01
209 #define TOUCHPAD3_GENERAL_OFFSET_BYTE_TX_CHANNELS 0x02
210 #define TOUCHPAD3_GENERAL_OFFSET_BYTE_RX_SCALING_LSB 0x04
211 #define TOUCHPAD3_GENERAL_OFFSET_BYTE_RX_SCALING_MSB 0x05
212 #define TOUCHPAD3_GENERAL_OFFSET_BYTE_TX_SCALING_LSB 0x06
213 #define TOUCHPAD3_GENERAL_OFFSET_BYTE_TX_SCALING_MSB 0x07
214 
215 
220 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_0 0x00
221 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_1 0x01
222 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_2 0x02
223 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_3 0x03
224 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_4 0x04
225 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_5 0x05
226 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_6 0x06
227 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_7 0x07
228 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_8 0x08
229 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_9 0x09
230 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_10 0x0A
231 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_11 0x0B
232 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_12 0x0C
233 
238 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_0 0x00
239 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_1 0x01
240 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_2 0x02
241 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_3 0x03
242 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_4 0x04
243 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_5 0x05
244 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_6 0x06
245 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_7 0x07
246 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_8 0x08
247 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_9 0x09
248 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_10 0x0A
249 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_11 0x0B
250 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_12 0x0C
251 
256 #define TOUCHPAD3_SELF_OFFSET_BYTE_SELF_SCAN_TIME 0x00
257 #define TOUCHPAD3_SELF_OFFSET_BYTE_SELF_THRESHOLD 0x01
258 
263 #define TOUCHPAD3_MUTUAL_OFFSET_BYTE_MUTUAL_SCAN_TIME 0x00
264 #define TOUCHPAD3_MUTUAL_OFFSET_BYTE_MUTUAL_THRESHOLD 0x01
265 
270 #define TOUCHPAD3_DECODING_OFFSET_BYTE_FLIP_STATE 0x00
271 #define TOUCHPAD3_DECODING_OFFSET_BYTE_NUMBER_OF_AVG 0x01
272 #define TOUCHPAD3_DECODING_OFFSET_BYTE_MIN_TOUCH_DIST 0x04
273 #define TOUCHPAD3_DECODING_OFFSET_BYTE_PEN_DOWN_TIMER 0x05
274 #define TOUCHPAD3_DECODING_OFFSET_BYTE_PEN_UP_TIMER 0x06
275 #define TOUCHPAD3_DECODING_OFFSET_BYTE_TOUCH_SUPPR_VALUE 0x07
276 
281 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_RX_SWIPE_LEN 0x00
282 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_TX_SWIPE_LEN 0x01
283 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_SWIPE_BOUNDARY 0x02
284 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_SWIPE_HOLD_THD 0x03
285 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_SWIPE_TIME_LSB 0x04
286 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_SWIPE_TIME_MSB 0x05
287 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_TAP_TIME_LSB 0x06
288 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_TAP_TIME_MSB 0x07
289 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_TAP_THD 0x08
290 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_MIN_SWIPE_VELOCITY 0x09
291 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_DOUBLE_TAP_TIME_LSB 0x0A
292 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_DOUBLE_TAP_TIME_MSB 0x0B
293 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_GESTURE_EDGE_KEEP_OUT 0x0C
294 
299 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_SLP_LSW_LSB 0x00
300 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_SLP_LSW_MSB 0x01
301 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_SLP_MSW_LSB 0x02
302 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_SLP_MSW_MSB 0x03
303 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_TOUCH_PCK_CFG 0x07
304 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_GESTURE_PCK_CFG 0x09
305 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_STATUS_PCK_CFG 0x0A
306 
311 #define TOUCHPAD3_IOSTATUS_OFFSET_BYTE_TX_SHORT_STATUS_LSB 0x02
312 #define TOUCHPAD3_IOSTATUS_OFFSET_BYTE_TX_SHORT_STATUS_MSB 0x03
313 #define TOUCHPAD3_IOSTATUS_OFFSET_BYTE_RX_SHORT_STATUS_LSB 0x06
314 #define TOUCHPAD3_IOSTATUS_OFFSET_BYTE_RX_SHORT_STATUS_MSB 0x07
315 
320 #define TOUCHPAD3_CONFIG_TOUCH_GESTURE_PCK_DISABLE 0x01
321 #define TOUCHPAD3_CONFIG_TOUCH_GESTURE_PCK_ENABLE 0x81
322 
327 #define TOUCHPAD3_TOUCH_GESTURE_DISABLE 0x00
328 #define TOUCHPAD3_TOUCH_GESTURE_ENABLE 0x01
329 
334 #define TOUCHPAD3_GESTURE_SINGLE_TAP 0x10
335 #define TOUCHPAD3_GESTURE_SINGLE_TAP_HOLD 0x11
336 #define TOUCHPAD3_GESTURE_DOUBLE_TAP 0x20
337 #define TOUCHPAD3_GESTURE_UP_SWIPE 0x31
338 #define TOUCHPAD3_GESTURE_UP_SWIPE_HOLD 0x32
339 #define TOUCHPAD3_GESTURE_RIGHT_SWIPE 0x41
340 #define TOUCHPAD3_GESTURE_RIGHT_SWIPE_HOLD 0x42
341 #define TOUCHPAD3_GESTURE_DOWN_SWIPE 0x51
342 #define TOUCHPAD3_GESTURE_DOWN_SWIPE_HOLD 0x52
343 #define TOUCHPAD3_GESTURE_LEFT_SWIPE 0x61
344 #define TOUCHPAD3_GESTURE_LEFT_SWIPE_HOLD 0x62
345 
350 #define TOUCHPAD3_CMD_STATUS_SUCCESS 0x00
351 #define TOUCHPAD3_CMD_STATUS_PARAM_OUT_OF_RANGE 0x80
352 #define TOUCHPAD3_CMD_STATUS_TIMEOUT 0xFE
353 #define TOUCHPAD3_CMD_STATUS_UNRECOGNIZED 0xFF
354 #define TOUCHPAD3_CMD_STATUS_INVALID_PARAM 0xFD
355 #define TOUCHPAD3_CMD_STATUS_MISSING_OR_EXTRA_PARAM 0xFC
356 
361 #define TOUCHPAD3_T_AND_G_ID_BIT_MASK 0x0F
362 #define TOUCHPAD3_TCH_STATE_BIT_MASK 0x01
363 #define TOUCHPAD3_PEN_STATE_BIT_MASK 0x01
364 #define TOUCHPAD3_5_BIT_MASK 0x1F
365 
370 #define TOUCHPAD3_INT_STATUS_LOW 0x00
371 #define TOUCHPAD3_INT_STATUS_HIGH 0x01
372 
377 #define TOUCHPAD3_STATUS_ERROR 0x00
378 #define TOUCHPAD3_STATUS_SUCCESS 0x01
379 
384 #define TOUCHPAD3_STATE_TCH 0x00
385 #define TOUCHPAD3_STATE_GST 0x01
386 #define TOUCHPAD3_LEN_TCH 0x05
387 #define TOUCHPAD3_LEN_GST 0x02
388 
394 #define TOUCHPAD3_SET_DEV_ADDR 0x25
395  // touchpad3_set
397 
412 #define TOUCHPAD3_MAP_MIKROBUS( cfg, mikrobus ) \
413  cfg.scl = MIKROBUS( mikrobus, MIKROBUS_SCL ); \
414  cfg.sda = MIKROBUS( mikrobus, MIKROBUS_SDA ); \
415  cfg.rst = MIKROBUS( mikrobus, MIKROBUS_RST ); \
416  cfg.int_pin = MIKROBUS( mikrobus, MIKROBUS_INT )
417  // touchpad3_map // touchpad3
420 
425 typedef struct
426 {
427  // Output pins
428  digital_out_t rst;
430  // Input pins
431  digital_in_t int_pin;
433  // Modules
434  i2c_master_t i2c;
436  // I2C slave address
437  uint8_t slave_address;
439 } touchpad3_t;
440 
445 typedef struct
446 {
447  pin_name_t scl;
448  pin_name_t sda;
450  pin_name_t rst;
451  pin_name_t int_pin;
453  uint32_t i2c_speed;
454  uint8_t i2c_address;
457 
458 typedef struct
459 {
460  uint8_t touch_id;
461  uint8_t tch_state;
462  uint8_t pen_state;
463 }touch_data_t;
464 
465 typedef struct
466 {
467  uint8_t cmd;
468  uint8_t n_tx_bytes;
469  uint8_t n_rx_bytes;
471 
476 typedef enum
477 {
479  TOUCHPAD3_ERROR = -1
480 
482 
499 
515 
530 
542 
555 
570 void touchpad3_generic_write ( touchpad3_t *ctx, uint8_t *tx_buf, uint8_t tx_len );
571 
587 err_t touchpad3_generic_read ( touchpad3_t *ctx, uint8_t reg, uint8_t *rx_buf, uint8_t rx_len );
588 
601 
614 
627 
643 uint8_t touchpad3_get_touch ( touchpad3_t *ctx, touch_data_t *tch_data,uint16_t *x_axis, uint16_t *y_axis );
644 
659 uint8_t touchpad3_get_gesture ( touchpad3_t *ctx, touch_data_t *gst_data, uint8_t *gesture );
660 
680 uint8_t touchpad3_cmd_protocol ( touchpad3_t *ctx, cmd_protocol_t cmd_data, uint8_t *p_tx_data, uint8_t *p_rx_data );
681 
702 uint8_t touchpad3_write_reg ( touchpad3_t *ctx, uint8_t index_loc, uint8_t offset_loc, uint8_t tx_data, uint8_t
703 *p_response );
704 
725 uint8_t touchpad3_read_reg ( touchpad3_t *ctx, uint8_t index_loc, uint8_t offset_loc, uint8_t *read_data, uint8_t *p_response );
726 
740 
751 
763 uint8_t touchpad3_config_touch ( touchpad3_t *ctx, uint8_t en_touch );
764 
776 uint8_t touchpad3_config_gesture ( touchpad3_t *ctx, uint8_t en_gesture );
777 
778 #ifdef __cplusplus
779 }
780 #endif
781 #endif // TOUCHPAD3_H
782  // touchpad3
784 
785 // ------------------------------------------------------------------------ END
x_axis
uint16_t x_axis
Definition: main.c:31
TOUCHPAD3_ERROR
@ TOUCHPAD3_ERROR
Definition: touchpad3.h:479
touchpad3_read_reg
uint8_t touchpad3_read_reg(touchpad3_t *ctx, uint8_t index_loc, uint8_t offset_loc, uint8_t *read_data, uint8_t *p_response)
Touchpad 3 read register data function.
touchpad3_t::slave_address
uint8_t slave_address
Definition: touchpad3.h:437
touchpad3_cfg_t::rst
pin_name_t rst
Definition: touchpad3.h:450
TOUCHPAD3_OK
@ TOUCHPAD3_OK
Definition: touchpad3.h:478
touchpad3_default_cfg
err_t touchpad3_default_cfg(touchpad3_t *ctx)
Touchpad 3 default configuration function.
touchpad3_cfg_t::sda
pin_name_t sda
Definition: touchpad3.h:448
touchpad3_cfg_t::i2c_address
uint8_t i2c_address
Definition: touchpad3.h:454
touchpad3_cfg_t
Touchpad 3 Click configuration object.
Definition: touchpad3.h:446
touchpad3_t::i2c
i2c_master_t i2c
Definition: touchpad3.h:434
touchpad3_cfg_t::i2c_speed
uint32_t i2c_speed
Definition: touchpad3.h:453
touchpad3_get_int
uint8_t touchpad3_get_int(touchpad3_t *ctx)
Touchpad 3 get interrupt function..
touchpad3_t::rst
digital_out_t rst
Definition: touchpad3.h:428
touchpad3_cfg_t::int_pin
pin_name_t int_pin
Definition: touchpad3.h:451
touchpad3_decoding_configuration
void touchpad3_decoding_configuration(touchpad3_t *ctx)
Touchpad 3 decoding configuration function.
touchpad3_get_touch
uint8_t touchpad3_get_touch(touchpad3_t *ctx, touch_data_t *tch_data, uint16_t *x_axis, uint16_t *y_axis)
Touchpad 3 get touch data function.
touch_data_t
Definition: touchpad3.h:459
touchpad3_config_touch
uint8_t touchpad3_config_touch(touchpad3_t *ctx, uint8_t en_touch)
Touchpad 3 configure touch function.
touchpad3_manufacturing_test
uint8_t touchpad3_manufacturing_test(touchpad3_t *ctx)
Touchpad 3 manufacturing test function.
touchpad3_hw_reset
void touchpad3_hw_reset(touchpad3_t *ctx)
Touchpad 3 hardware reset function.
touchpad3_cfg_t::scl
pin_name_t scl
Definition: touchpad3.h:447
touchpad3_cmd_protocol
uint8_t touchpad3_cmd_protocol(touchpad3_t *ctx, cmd_protocol_t cmd_data, uint8_t *p_tx_data, uint8_t *p_rx_data)
Touchpad 3 command protocol function.
touchpad3_return_value_t
touchpad3_return_value_t
Touchpad 3 Click return value data.
Definition: touchpad3.h:477
touch_data_t::tch_state
uint8_t tch_state
Definition: touchpad3.h:461
touchpad3_t::int_pin
digital_in_t int_pin
Definition: touchpad3.h:431
touchpad3_cfg_setup
void touchpad3_cfg_setup(touchpad3_cfg_t *cfg)
Touchpad 3 configuration object setup function.
touchpad3_init
err_t touchpad3_init(touchpad3_t *ctx, touchpad3_cfg_t *cfg)
Touchpad 3 initialization function.
touchpad3_write_reg
uint8_t touchpad3_write_reg(touchpad3_t *ctx, uint8_t index_loc, uint8_t offset_loc, uint8_t tx_data, uint8_t *p_response)
Touchpad 3 write register data function.
touchpad3_t
Touchpad 3 Click context object.
Definition: touchpad3.h:426
touchpad3_sensor_mapping_configuration
void touchpad3_sensor_mapping_configuration(touchpad3_t *ctx)
Touchpad 3 sensor mapping configuration function.
cmd_protocol_t::cmd
uint8_t cmd
Definition: touchpad3.h:467
touchpad3_config_gesture
uint8_t touchpad3_config_gesture(touchpad3_t *ctx, uint8_t en_gesture)
Touchpad 3 configure gesture function.
touchpad3_get_gesture
uint8_t touchpad3_get_gesture(touchpad3_t *ctx, touch_data_t *gst_data, uint8_t *gesture)
Touchpad 3 get gesture data function.
touch_data_t::pen_state
uint8_t pen_state
Definition: touchpad3.h:462
y_axis
uint16_t y_axis
Definition: main.c:32
touchpad3_get_device_id
uint32_t touchpad3_get_device_id(touchpad3_t *ctx)
Touchpad 3 get device id function.
cmd_protocol_t::n_rx_bytes
uint8_t n_rx_bytes
Definition: touchpad3.h:469
touchpad3_general_configuration
void touchpad3_general_configuration(touchpad3_t *ctx)
Touchpad 3 general configuration function.
cmd_protocol_t
Definition: touchpad3.h:466
touchpad3_generic_write
void touchpad3_generic_write(touchpad3_t *ctx, uint8_t *tx_buf, uint8_t tx_len)
Touchpad 3 I2C writing function.
cmd_protocol_t::n_tx_bytes
uint8_t n_tx_bytes
Definition: touchpad3.h:468
touch_data_t::touch_id
uint8_t touch_id
Definition: touchpad3.h:460
touchpad3_generic_read
err_t touchpad3_generic_read(touchpad3_t *ctx, uint8_t reg, uint8_t *rx_buf, uint8_t rx_len)
Touchpad 3 I2C reading function.