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SourceVuESP-IDF Framework and ExamplesESP-IDFPORT_ReadData()

PORT_ReadData() function

* Function PORT_ReadData * Description Normally application will call this function after receiving * PORT_EVT_RXCHAR event. * Parameters: handle - Handle returned in the RFCOMM_CreateConnection * callback. * p_data - Data area * max_len - Byte count requested * p_len - Byte count received

Syntax

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Summary

Declaration

from port_api.h:588

extern int PORT_ReadData (UINT16 handle, char *p_data, UINT16 max_len, UINT16 *p_len);

Arguments

Argument

handle

p_data

max_len

p_len

References

Code

Location

Referrer

int PORT_ReadData (UINT16 handle, char *p_data, UINT16 max_len, UINT16 *p_len)

port_api.c:1225

extern int PORT_ReadData (UINT16 handle, char *p_data, UINT16 max_len,

if (PORT_ReadData(p_scb->conn_handle, buf, BTA_AG_RFC_READ_MAX, &len) != PORT_SUCCESS) {

bta_ag_act.c:565

bta_ag_rfc_data()

while (PORT_ReadData(bta_hf_client_cb.scb.conn_handle, buf, BTA_HF_CLIENT_RFC_READ_MAX, &len) == PORT_SUCCESS) {

bta_hf_client_act.c:508

bta_hf_client_rfc_data()

if (PORT_ReadData(rc->p_pcb->port_handle, (char *)rc->p_data, rc->len, &evt_data.len) ==

bta_jv_act.c:2357

bta_jv_rfcomm_read()

Call Tree

PORT_ReadData() is called by 3 functions and calls 9 functions:

bta_jv_rfcomm_read()

bta_ag_rfc_data()

bta_hf_client_rfc_data()

PORT_ReadData()

esp_log_timestamp()

esp_log_write()

osi_mutex_global_lock()

osi_mutex_global_unlock()

fixed_queue_is_empty()

fixed_queue_dequeue()

fixed_queue_try_peek_first()

port_flow_control_peer()

Data Use

PORT_ReadData() reads 14 variables and writes 3 variables:

esp_log_level_t::ESP_LOG_INFO

esp_log_level_t::ESP_LOG_DEBUG

tRFC_CB::trace_level

tPORT_DATA::queue

tPORT_DATA::queue_size

t_port_info::in_use

t_port_info::state

t_port_info::line_status

t_port_info::rx

PORT_ReadData()

tPORT_DATA::queue_size

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