AliOS Things API HAL TRACE Guide

API INDEX

• 1 trace_hal_init
• 2 trace_hal_send
• 3 trace_hal_recv
• 4 trace_hal_deinit

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1-trace_hal_init

void *trace_hal_init(void)

• Description

  trace data transfer init.

• Parameters

  None.

• Returns

  None.

2-trace_hal_send

ssize_t trace_hal_send(void *handle, void *buf, size_t len)

• Description

  trace data transfer send.

• Parameters

  IN/OUT	NAME	DESC
  [in]	handle	data transfer channel object
  [in]	buf	the buffer store data
  [in]	len	the len of data

• Returns

  the size send success.

3-trace_hal_recv

ssize_t trace_hal_recv(void *handle, void *buf)

• Description

  trace data transfer receive.

• Parameters

  IN/OUT	NAME	DESC
  [in]	handle	data transfer channel object
  [in]	buf	the buffer to store data

• Returns

  the size receive success.

4-trace_hal_deinit

void trace_hal_deinit(void *handle)

• Description

  trace data transfer init.

• Parameters

  IN/OUT	NAME	DESC
  [in]	handle	data transfer channel object

• Returns

  None.