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SourceVuESP-IDF Framework and ExamplesESP-IDFesp_bt_hid_host_send_data()

esp_bt_hid_host_send_data() function

Send data to HID device. When the operation is complete the callback function will be called with ESP_HIDH_DATA_EVT.

Syntax

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Summary

Declaration

from esp_hidh_api.h:476

esp_err_t esp_bt_hid_host_send_data(esp_bd_addr_t bd_addr, uint8_t *data, size_t len);

Arguments

Argument

Description

bd_addr

Remote device bluetooth device address.

data

Data pointer

len

Data length

Return value

- ESP_OK: success - other: failed

References

Code

Location

Referrer

esp_err_t esp_bt_hid_host_send_data(esp_bd_addr_t bd_addr, uint8_t *data, size_t len)

esp_hidh_api.c:231

esp_err_t esp_bt_hid_host_send_data(esp_bd_addr_t bd_addr, uint8_t *data, size_t len);

esp_hidh_api.h:476

ret = esp_bt_hid_host_send_data(dev->addr.bda, data, len);

bt_hidh.c:795

esp_bt_hidh_dev_report_write()

Call Tree

esp_bt_hid_host_send_data() is called by 1 function and calls 2 functions:

esp_bt_hidh_dev_report_write()

esp_bt_hid_host_send_data()

esp_bluedroid_get_status()

btc_transfer_context()

Data Use

esp_bt_hid_host_send_data() reads 9 variables and writes 5 variables:

esp_bluedroid_status_t::ESP_BLUEDROID_STATUS_ENABLED

bt_status_t::BT_STATUS_SUCCESS

btc_sig_t::BTC_SIG_API_CALL

btc_pid_t::BTC_PID_HH

send_data_arg::bd_addr

btc_hidh_args_t::send_data

BTC_HH_EVT::BTC_HH_SEND_DATA_EVT

btc_hh_arg_deep_copy()

btc_hh_cb_arg_deep_free()

esp_bt_hid_host_send_data()

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