virtio_log.h File Reference

Write to the OpenAMP trace (log) buffer readable from the Linux host. More...

#include <stdint.h>

Functions
void	virtio_log (uint8_t *data, uint32_t size)
	Write data to the OpenAMP trace buffer.

Detailed Description

Write to the OpenAMP trace (log) buffer readable from the Linux host.

Function Documentation

virtio_log()

void virtio_log	(	uint8_t *	data,
		uint32_t	size
	)

Write data to the OpenAMP trace buffer.

Note

By writing OpenAMP trace (log) buffer here, the Linux host can access to the content by the following command: $ cat /sys/kernel/debug/remoteproc/remoteproc0/trace0

When the buffer overflows (2kb by default, configurable.), the buffer is cleaned by a null character. Consider increasing VIRTIO_LOG_BUFFER_SIZE if a larger log buffer is needed.

Parameters

data	Data to send.
size	Size of data, in bytes.