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 
35 #include "mikrosdk_version.h"
36 
37 #ifdef __GNUC__
38 #if mikroSDK_GET_VERSION < 20800ul
39 #include "rcu_delays.h"
40 #else
41 #include "delays.h"
42 #endif
43 #endif
44 
45 #include "drv_digital_out.h"
46 #include "drv_digital_in.h"
47 #include "drv_i2c_master.h"
48 
69 #define TOUCHPAD3_GENERAL_INDEX_LOCATION 0x00
70 
75 #define TOUCHPAD3_GENERAL_RX_CH_ADD 0x01
76 #define TOUCHPAD3_GENERAL_TX_CH_ADD 0x02
77 #define TOUCHPAD3_GENERAL_RX_SC_L_ADD 0x04
78 #define TOUCHPAD3_GENERAL_RX_SC_H_ADD 0x05
79 #define TOUCHPAD3_GENERAL_TX_SC_L_ADD 0x06
80 #define TOUCHPAD3_GENERAL_TX_SC_H_ADD 0x07
81 
87 #define TOUCHPAD3_GENERAL_RX_CH 0x05
88 #define TOUCHPAD3_GENERAL_TX_CH 0x04
89 #define TOUCHPAD3_GENERAL_RX_SC_L 0x33
90 #define TOUCHPAD3_GENERAL_RX_SC_H 0x33
91 #define TOUCHPAD3_GENERAL_TX_SC_L 0x00
92 #define TOUCHPAD3_GENERAL_TX_SC_H 0x40
93 
98 #define TOUCHPAD3_DECODING_INDEX_LOCATION 0x30
99 
104 #define TOUCHPAD3_DEC_FLIP_STATE_ADD 0x00
105 #define TOUCHPAD3_DEC_NUM_AVG_ADD 0x01
106 #define TOUCHPAD3_DEC_MIN_TOUCH_DISTANCE_ADD 0x04
107 
112 #define TOUCHPAD3_DEC_FLIP_STATE 0x04
113 #define TOUCHPAD3_DEC_NUM_AVG 0x08
114 #define TOUCHPAD3_DEC_MIN_TOUCH_DISTANCE 0x01
115  // touchpad3_reg
117 
132 #define TOUCHPAD3_REG_WRITE 0x55, 0x04, 0x15
133 
134 #define TOUCHPAD3_RX_MAP_INDEX_ADD 0x01
135 #define TOUCHPAD3_RX_CH1_ADD 0x00
136 #define TOUCHPAD3_RX_CH2_ADD 0x01
137 #define TOUCHPAD3_RX_CH3_ADD 0x02
138 #define TOUCHPAD3_RX_CH4_ADD 0x03
139 #define TOUCHPAD3_RX_CH5_ADD 0x04
140 
145 #define TOUCHPAD3_RX_CH1 0x08
146 #define TOUCHPAD3_RX_CH2 0x07
147 #define TOUCHPAD3_RX_CH3 0x06
148 #define TOUCHPAD3_RX_CH4 0x05
149 #define TOUCHPAD3_RX_CH5 0x04
150 
155 #define TOUCHPAD3_TX_MAP_INDEX_ADD 0x02
156 #define TOUCHPAD3_TX_CH1_ADD 0x00
157 #define TOUCHPAD3_TX_CH2_ADD 0x01
158 #define TOUCHPAD3_TX_CH3_ADD 0x02
159 #define TOUCHPAD3_TX_CH4_ADD 0x03
160 
165 #define TOUCHPAD3_TX_CH1 0x0D
166 #define TOUCHPAD3_TX_CH2 0x06
167 #define TOUCHPAD3_TX_CH3 0x03
168 #define TOUCHPAD3_TX_CH4 0x02
169 
174 #define TOUCHPAD3_SET_COMMAND 0x55
175 #define TOUCHPAD3_CMD_ENABLE_TOUCH 0x00
176 #define TOUCHPAD3_CMD_DISABLE_TOUCH 0x01
177 #define TOUCHPAD3_CMD_SCAN_BASELINE 0x14
178 #define TOUCHPAD3_CMD_WRITE_REGISTER 0x15
179 #define TOUCHPAD3_CMD_READ_REGISTER 0x16
180 #define TOUCHPAD3_CMD_WRITE_NVRAM 0x17
181 #define TOUCHPAD3_CMD_SOFTWARE_SLEEP 0x18
182 #define TOUCHPAD3_CMD_ERASE_NVRAM 0x19
183 #define TOUCHPAD3_CMD_MANUFACTURING_TEST 0x1A
184 #define TOUCHPAD3_CMD_DEVICE_ID 0x83
185 
190 #define TOUCHPAD3_GENERAL_INDEX_BYTE 0x00
191 #define TOUCHPAD3_SENSOR_MAP_RX_INDEX_BYTE 0x01
192 #define TOUCHPAD3_SENSOR_MAP_TX_INDEX_BYTE 0x02
193 #define TOUCHPAD3_SELF_INDEX_BYTE 0x10
194 #define TOUCHPAD3_MUTUAL_INDEX_BYTE 0x20
195 #define TOUCHPAD3_DECODING_INDEX_BYTE 0x30
196 #define TOUCHPAD3_GESTURES_INDEX_BYTE 0x50
197 #define TOUCHPAD3_CONFIGURATION_INDEX_BYTE 0xF0
198 #define TOUCHPAD3_I_O_STATUS_INDEX_BYTE 0xF1
199 
204 #define TOUCHPAD3_GENERAL_OFFSET_BYTE_RX_CHANNELS 0x01
205 #define TOUCHPAD3_GENERAL_OFFSET_BYTE_TX_CHANNELS 0x02
206 #define TOUCHPAD3_GENERAL_OFFSET_BYTE_RX_SCALING_LSB 0x04
207 #define TOUCHPAD3_GENERAL_OFFSET_BYTE_RX_SCALING_MSB 0x05
208 #define TOUCHPAD3_GENERAL_OFFSET_BYTE_TX_SCALING_LSB 0x06
209 #define TOUCHPAD3_GENERAL_OFFSET_BYTE_TX_SCALING_MSB 0x07
210 
211 
216 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_0 0x00
217 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_1 0x01
218 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_2 0x02
219 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_3 0x03
220 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_4 0x04
221 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_5 0x05
222 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_6 0x06
223 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_7 0x07
224 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_8 0x08
225 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_9 0x09
226 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_10 0x0A
227 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_11 0x0B
228 #define TOUCHPAD3_SENSOR_MAP_RX_OFFSET_BYTE_RX_PIN_MAP_12 0x0C
229 
234 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_0 0x00
235 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_1 0x01
236 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_2 0x02
237 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_3 0x03
238 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_4 0x04
239 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_5 0x05
240 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_6 0x06
241 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_7 0x07
242 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_8 0x08
243 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_9 0x09
244 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_10 0x0A
245 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_11 0x0B
246 #define TOUCHPAD3_SENSOR_MAP_TX_OFFSET_BYTE_RX_PIN_MAP_12 0x0C
247 
252 #define TOUCHPAD3_SELF_OFFSET_BYTE_SELF_SCAN_TIME 0x00
253 #define TOUCHPAD3_SELF_OFFSET_BYTE_SELF_THRESHOLD 0x01
254 
259 #define TOUCHPAD3_MUTUAL_OFFSET_BYTE_MUTUAL_SCAN_TIME 0x00
260 #define TOUCHPAD3_MUTUAL_OFFSET_BYTE_MUTUAL_THRESHOLD 0x01
261 
266 #define TOUCHPAD3_DECODING_OFFSET_BYTE_FLIP_STATE 0x00
267 #define TOUCHPAD3_DECODING_OFFSET_BYTE_NUMBER_OF_AVG 0x01
268 #define TOUCHPAD3_DECODING_OFFSET_BYTE_MIN_TOUCH_DIST 0x04
269 #define TOUCHPAD3_DECODING_OFFSET_BYTE_PEN_DOWN_TIMER 0x05
270 #define TOUCHPAD3_DECODING_OFFSET_BYTE_PEN_UP_TIMER 0x06
271 #define TOUCHPAD3_DECODING_OFFSET_BYTE_TOUCH_SUPPR_VALUE 0x07
272 
277 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_RX_SWIPE_LEN 0x00
278 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_TX_SWIPE_LEN 0x01
279 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_SWIPE_BOUNDARY 0x02
280 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_SWIPE_HOLD_THD 0x03
281 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_SWIPE_TIME_LSB 0x04
282 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_SWIPE_TIME_MSB 0x05
283 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_TAP_TIME_LSB 0x06
284 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_TAP_TIME_MSB 0x07
285 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_TAP_THD 0x08
286 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_MIN_SWIPE_VELOCITY 0x09
287 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_DOUBLE_TAP_TIME_LSB 0x0A
288 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_DOUBLE_TAP_TIME_MSB 0x0B
289 #define TOUCHPAD3_GESTURES_OFFSET_BYTE_GESTURE_EDGE_KEEP_OUT 0x0C
290 
295 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_SLP_LSW_LSB 0x00
296 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_SLP_LSW_MSB 0x01
297 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_SLP_MSW_LSB 0x02
298 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_SLP_MSW_MSB 0x03
299 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_TOUCH_PCK_CFG 0x07
300 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_GESTURE_PCK_CFG 0x09
301 #define TOUCHPAD3_CONFIG_OFFSET_BYTE_STATUS_PCK_CFG 0x0A
302 
307 #define TOUCHPAD3_IOSTATUS_OFFSET_BYTE_TX_SHORT_STATUS_LSB 0x02
308 #define TOUCHPAD3_IOSTATUS_OFFSET_BYTE_TX_SHORT_STATUS_MSB 0x03
309 #define TOUCHPAD3_IOSTATUS_OFFSET_BYTE_RX_SHORT_STATUS_LSB 0x06
310 #define TOUCHPAD3_IOSTATUS_OFFSET_BYTE_RX_SHORT_STATUS_MSB 0x07
311 
316 #define TOUCHPAD3_CONFIG_TOUCH_GESTURE_PCK_DISABLE 0x01
317 #define TOUCHPAD3_CONFIG_TOUCH_GESTURE_PCK_ENABLE 0x81
318 
323 #define TOUCHPAD3_TOUCH_GESTURE_DISABLE 0x00
324 #define TOUCHPAD3_TOUCH_GESTURE_ENABLE 0x01
325 
330 #define TOUCHPAD3_GESTURE_SINGLE_TAP 0x10
331 #define TOUCHPAD3_GESTURE_SINGLE_TAP_HOLD 0x11
332 #define TOUCHPAD3_GESTURE_DOUBLE_TAP 0x20
333 #define TOUCHPAD3_GESTURE_UP_SWIPE 0x31
334 #define TOUCHPAD3_GESTURE_UP_SWIPE_HOLD 0x32
335 #define TOUCHPAD3_GESTURE_RIGHT_SWIPE 0x41
336 #define TOUCHPAD3_GESTURE_RIGHT_SWIPE_HOLD 0x42
337 #define TOUCHPAD3_GESTURE_DOWN_SWIPE 0x51
338 #define TOUCHPAD3_GESTURE_DOWN_SWIPE_HOLD 0x52
339 #define TOUCHPAD3_GESTURE_LEFT_SWIPE 0x61
340 #define TOUCHPAD3_GESTURE_LEFT_SWIPE_HOLD 0x62
341 
346 #define TOUCHPAD3_CMD_STATUS_SUCCESS 0x00
347 #define TOUCHPAD3_CMD_STATUS_PARAM_OUT_OF_RANGE 0x80
348 #define TOUCHPAD3_CMD_STATUS_TIMEOUT 0xFE
349 #define TOUCHPAD3_CMD_STATUS_UNRECOGNIZED 0xFF
350 #define TOUCHPAD3_CMD_STATUS_INVALID_PARAM 0xFD
351 #define TOUCHPAD3_CMD_STATUS_MISSING_OR_EXTRA_PARAM 0xFC
352 
357 #define TOUCHPAD3_T_AND_G_ID_BIT_MASK 0x0F
358 #define TOUCHPAD3_TCH_STATE_BIT_MASK 0x01
359 #define TOUCHPAD3_PEN_STATE_BIT_MASK 0x01
360 #define TOUCHPAD3_5_BIT_MASK 0x1F
361 
366 #define TOUCHPAD3_INT_STATUS_LOW 0x00
367 #define TOUCHPAD3_INT_STATUS_HIGH 0x01
368 
373 #define TOUCHPAD3_STATUS_ERROR 0x00
374 #define TOUCHPAD3_STATUS_SUCCESS 0x01
375 
380 #define TOUCHPAD3_STATE_TCH 0x00
381 #define TOUCHPAD3_STATE_GST 0x01
382 #define TOUCHPAD3_LEN_TCH 0x05
383 #define TOUCHPAD3_LEN_GST 0x02
384 
390 #define TOUCHPAD3_SET_DEV_ADDR 0x25
391  // touchpad3_set
393 
408 #define TOUCHPAD3_MAP_MIKROBUS( cfg, mikrobus ) \
409  cfg.scl = MIKROBUS( mikrobus, MIKROBUS_SCL ); \
410  cfg.sda = MIKROBUS( mikrobus, MIKROBUS_SDA ); \
411  cfg.rst = MIKROBUS( mikrobus, MIKROBUS_RST ); \
412  cfg.int_pin = MIKROBUS( mikrobus, MIKROBUS_INT )
413  // touchpad3_map // touchpad3
416 
421 typedef struct
422 {
423  // Output pins
424  digital_out_t rst;
426  // Input pins
427  digital_in_t int_pin;
429  // Modules
430  i2c_master_t i2c;
432  // I2C slave address
433  uint8_t slave_address;
435 } touchpad3_t;
436 
441 typedef struct
442 {
443  pin_name_t scl;
444  pin_name_t sda;
446  pin_name_t rst;
447  pin_name_t int_pin;
449  uint32_t i2c_speed;
450  uint8_t i2c_address;
453 
454 typedef struct
455 {
456  uint8_t touch_id;
457  uint8_t tch_state;
458  uint8_t pen_state;
459 }touch_data_t;
460 
461 typedef struct
462 {
463  uint8_t cmd;
464  uint8_t n_tx_bytes;
465  uint8_t n_rx_bytes;
467 
472 typedef enum
473 {
475  TOUCHPAD3_ERROR = -1
476 
478 
495 
511 
526 
538 
551 
566 void touchpad3_generic_write ( touchpad3_t *ctx, uint8_t *tx_buf, uint8_t tx_len );
567 
583 err_t touchpad3_generic_read ( touchpad3_t *ctx, uint8_t reg, uint8_t *rx_buf, uint8_t rx_len );
584 
597 
610 
623 
639 uint8_t touchpad3_get_touch ( touchpad3_t *ctx, touch_data_t *tch_data,uint16_t *x_axis, uint16_t *y_axis );
640 
655 uint8_t touchpad3_get_gesture ( touchpad3_t *ctx, touch_data_t *gst_data, uint8_t *gesture );
656 
676 uint8_t touchpad3_cmd_protocol ( touchpad3_t *ctx, cmd_protocol_t cmd_data, uint8_t *p_tx_data, uint8_t *p_rx_data );
677 
698 uint8_t touchpad3_write_reg ( touchpad3_t *ctx, uint8_t index_loc, uint8_t offset_loc, uint8_t tx_data, uint8_t
699 *p_response );
700 
721 uint8_t touchpad3_read_reg ( touchpad3_t *ctx, uint8_t index_loc, uint8_t offset_loc, uint8_t *read_data, uint8_t *p_response );
722 
736 
747 
759 uint8_t touchpad3_config_touch ( touchpad3_t *ctx, uint8_t en_touch );
760 
772 uint8_t touchpad3_config_gesture ( touchpad3_t *ctx, uint8_t en_gesture );
773 
774 #ifdef __cplusplus
775 }
776 #endif
777 #endif // TOUCHPAD3_H
778  // touchpad3
780 
781 // ------------------------------------------------------------------------ END
x_axis
uint16_t x_axis
Definition: main.c:31
TOUCHPAD3_ERROR
@ TOUCHPAD3_ERROR
Definition: touchpad3.h:475
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:433
touchpad3_cfg_t::rst
pin_name_t rst
Definition: touchpad3.h:446
TOUCHPAD3_OK
@ TOUCHPAD3_OK
Definition: touchpad3.h:474
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:444
touchpad3_cfg_t::i2c_address
uint8_t i2c_address
Definition: touchpad3.h:450
touchpad3_cfg_t
Touchpad 3 Click configuration object.
Definition: touchpad3.h:442
touchpad3_t::i2c
i2c_master_t i2c
Definition: touchpad3.h:430
touchpad3_cfg_t::i2c_speed
uint32_t i2c_speed
Definition: touchpad3.h:449
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:424
touchpad3_cfg_t::int_pin
pin_name_t int_pin
Definition: touchpad3.h:447
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:455
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:443
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:473
touch_data_t::tch_state
uint8_t tch_state
Definition: touchpad3.h:457
touchpad3_t::int_pin
digital_in_t int_pin
Definition: touchpad3.h:427
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:422
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:463
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:458
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:465
touchpad3_general_configuration
void touchpad3_general_configuration(touchpad3_t *ctx)
Touchpad 3 general configuration function.
cmd_protocol_t
Definition: touchpad3.h:462
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:464
touch_data_t::touch_id
uint8_t touch_id
Definition: touchpad3.h:456
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.