incubator-nuttx/include/sys/ioctl.h

122 lines
3.5 KiB
C

/****************************************************************************
* include/sys/ioctl.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __INCLUDE_SYS_IOCTL_H
#define __INCLUDE_SYS_IOCTL_H
/****************************************************************************
* Included Files
****************************************************************************/
/* Get NuttX configuration and NuttX-specific IOCTL definitions */
#include <nuttx/config.h>
#include <nuttx/fs/ioctl.h>
#ifdef CONFIG_NET
/* Include network IOCTL definitions */
# include <nuttx/net/ioctl.h>
#ifdef CONFIG_NETDEV_WIRELESS_IOCTL
/* Include wireless network IOCTL definitions */
# include <nuttx/wireless/wireless.h>
#endif
#endif /* CONFIG_NET */
#ifdef CONFIG_INPUT
/* Include input driver IOCTL definitions */
# include <nuttx/input/ioctl.h>
#endif
#ifdef CONFIG_DRIVERS_WIRELESS
/* Include wireless character driver IOCTL definitions */
# include <nuttx/wireless/ioctl.h>
#endif
#ifdef CONFIG_WIRELESS_IEEE802154
/* Include ieee802.15.4 MAC IOCTL definitions */
# include <nuttx/wireless/ieee802154/ieee802154_mac.h>
#endif /* CONFIG_WIRELESS_IEEE802154 */
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: ioctl
*
* Description:
* Perform device specific operations.
*
* ioctl() is a non-standard UNIX-like API
*
* Input Parameters:
* fd File/socket descriptor of device
* req The ioctl command
* arg The argument of the ioctl cmd, OR
* ... A third argument of type unsigned long is still expected.
*
* Returned Value:
* >=0 on success (positive non-zero values are cmd-specific)
* -1 on failure with errno set properly:
*
* EBADF
* 'fd' is not a valid descriptor.
* EFAULT
* 'arg' references an inaccessible memory area.
* EINVAL
* 'cmd' or 'arg' is not valid.
* ENOTTY
* 'fd' is not associated with a character special device.
* ENOTTY
* The specified request does not apply to the kind of object that the
* descriptor 'fd' references.
*
****************************************************************************/
int ioctl(int fd, int req, ...);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __INCLUDE_SYS_IOCTL_H */