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/*
* HID++ 2.0 protocol details.
*
* Copyright (C) 2014 Peter Wu <peter@lekensteyn.nl>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef HIDPP_20_H
#define HIDPP_20_H
#include <stdint.h>
#include "hidpp.h"
typedef struct {
uint8_t feature_index;
uint16_t feature_id;
uint8_t feature_type;
} FeatureInfo;
/**
* Retrieves the number of HID++ 2.0 features.
*
* @param fd File descriptor of the hidraw device.
* @param count[out] The number of HID++ 2.0 features.
* @return Zero on success, a HID++ error code otherwise.
*/
int hidpp20_get_features_count(int fd, uint8_t *count);
/**
* Retrieves feature information from a feature index.
*
* @param fd File descriptor of the hidraw device.
* @param feature_index A feature index to find information for.
* @param fi[out] Feature information on success.
* @return Zero on success, a HID++ error code otherwise.
*/
int hidpp20_get_feature(int fd, uint8_t feature_index, FeatureInfo *fi);
/**
* Retrieves the feature index for a given feature ID.
*
* @param fd File descriptor of the hidraw device.
* @param feature_id A 16-bit feature identifier.
* @param fi[out] Feature information on success.
* @return Zero on success, a HID++ error code otherwise.
*/
int hidpp20_get_feature_by_id(int fd, uint16_t feature_id, FeatureInfo *fi);
/**
* Retrieves the HID++ version for the device.
*
* @param fd File descriptor of the hidraw device.
* @param device_index Device index (between 1 and 6).
* @return a non-zero number indicating the HID++ version or 0 if the version
* could not be determined.
*/
uint16_t hidpp20_get_version(int fd, uint8_t device_index);
#endif
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