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SourceVuESP-IDF Framework and ExamplesESP-IDFble_gattc_read()

ble_gattc_read() function

Initiates GATT procedure: Read Characteristic Value.

Syntax

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Summary

Declaration

Definition

from ble_gatt.h:654

int ble_gattc_read(uint16_t conn_handle, uint16_t attr_handle, ble_gatt_attr_fn *cb, void *cb_arg);

Implemented in ble_gattc.c:3050

Arguments

Argument

Description

conn_handle

The connection over which to execute the procedure.

attr_handle

The handle of the characteristic value to read.

The function to call to report procedure status updates; null for no callback.

cb_arg

The optional argument to pass to the callback function.

Return value

0 on success; nonzero on failure.

Examples

ble_gattc_read() is referenced by 7 libraries and example projects:

blecent sample

cts_cent sample

enc_adv_data_cent sample

htp_cent sample

phy_cent sample

proximity_sensor_cent sample

blecent_throughput sample

References

from 0/7 examples

Code

Location

ble_gattc_read(uint16_t conn_handle, uint16_t attr_handle,

ble_gattc.c:3051

int ble_gattc_read(uint16_t conn_handle, uint16_t attr_handle,

ble_gatt.h:654

Call Tree

from 0/7 examples

ble_gattc_read() calls 5 functions:

ble_gattc_read()

ble_gattc_log_read()

ble_gattc_read_tx()

ble_gattc_proc_alloc()

ble_gattc_proc_prepare()

ble_gattc_process_status()

Data Use

from 0/7 examples

ble_gattc_read() reads 1 variable and writes 3 variables:

ble_gattc_proc::::read

ble_gattc_read()

ble_gattc_proc::::::handle

ble_gattc_proc::::::cb

ble_gattc_proc::::::cb_arg

Class Tree

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Override Tree

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Implementations

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Instances

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Lifecycle

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