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/* lowlevel.h
*
* Copyright © 2001 Lutz Müller <lutz@users.sourceforge.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __KONICA_LOWLEVEL_H__
#define __KONICA_LOWLEVEL_H__
#include <gphoto2/gphoto2-port.h>
#include <gphoto2/gphoto2-context.h>
int l_ping (GPPort *, GPContext *);
int l_init (GPPort *, GPContext *);
/*
* Some comments on the structure of send_buffer, image_buffer,
* and receive_buffer:
*
* send_buffer: The first two bytes are low order and high
* byte of the command, followed by at least two
* more bytes. The number of sent bytes has to be
* even.
*
* image_buffer: This buffer will contain raw data like
* jpeg or exif data.
*
* receive_buffer: The first two bytes will be the same as
* in send_buffer. This will be checked
* here. Then will follow low and high
* order byte of the return status. After
* that, depending on command and return
* status, other bytes will follow.
*/
int l_send_receive (GPPort *, GPContext *,
unsigned char *send_buffer, unsigned int send_buffer_size,
unsigned char **receive_buffer, unsigned int *receive_buffer_size,
unsigned int timeout,
unsigned char **image_buffer, unsigned int *image_buffer_size);
#endif /* __KONICA_LOWLEVEL_H__ */
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