ppc64le/p/pico-sdk-source-2.3.1-1.fc44.noarch.rpm

/*

 * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.

 *

 * SPDX-License-Identifier: BSD-3-Clause

 */


#ifndef _PICO_STDIO_DRIVER_H

#define _PICO_STDIO_DRIVER_H


#include "pico/stdio.h"


struct stdio_driver {

    void (*out_chars)(const char *buf, int len);

    void (*out_flush)(void);

    int (*in_chars)(char *buf, int len);

    void (*set_chars_available_callback)(void (*fn)(void*), void *param);

    stdio_driver_t *next;

#if PICO_STDIO_ENABLE_CRLF_SUPPORT

    bool last_ended_with_cr;

    bool crlf_enabled;

#endif

};


#endif

stdio.h

stdio_driver
A stdio driver that can be registered with the pico_stdio subsystem.
Definition driver.h:19

stdio_driver::out_chars
void(* out_chars)(const char *buf, int len)
Output characters to the driver; may be NULL if output is not supported.
Definition driver.h:20

stdio_driver::in_chars
int(* in_chars)(char *buf, int len)
Read available input characters; returns the number read, or may be NULL if input is not supported.
Definition driver.h:22

stdio_driver::out_flush
void(* out_flush)(void)
Flush any buffered output; may be NULL.
Definition driver.h:21

stdio_driver::set_chars_available_callback
void(* set_chars_available_callback)(void(*fn)(void *), void *param)
Register a callback to be invoked when input characters become available; may be NULL.
Definition driver.h:23

stdio_driver::next
stdio_driver_t * next
Next driver in the linked list; managed by the stdio subsystem.
Definition driver.h:24