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QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
Utilities & Libraries
Devctl and Ioctl Commands
DCMD_ALL_*
DCMD_ALL_SETOWN
Set the owner of a file descriptor

QNX Momentics IDE User's Guide
This User's Guide describes version 8.0 of the Integrated Development Environment (IDE) that's part of the QNX Tool Suite.
QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
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        Pass file advice to the filesystem
      - DCMD_ALL_GETFLAGS
        Get O_* file status flags
      - DCMD_ALL_GETMOUNTFLAGS
        Get ST_* mount flags
      - DCMD_ALL_GETOWN
        Get the owner of a file descriptor
      - DCMD_ALL_SETFLAGS
        Set O_* file status flags
      - DCMD_ALL_SETOWN
        Set the owner of a file descriptor
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    This document provides a reference for the Wi-Fi Protected Access (WPA) control interface, which provides a C API for the WPA/IEEE 802.11i protocols in Wi-Fi client stations. Application developers who want to control WPA operations and get associated status and event data should read this reference.
- Migrating to QNX OS 8.0
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Typographical Conventions, Support, and Licensing
This section describes the typographical conventions used throughout the documentation, explains how to obtain technical support, and provides some information about licensing.

DCMD_ALL_SETOWN

QNX SDP8.0Devctl and Ioctl CommandsDeveloper

Set the owner of a file descriptor

Synopsis:

#include <sys/dcmd_all.h>

#define DCMD_ALL_SETOWN __DIOT(_DCMD_ALL, 5, pid_t)

Arguments to devctl():


Argument	Value
`filedes`	A file descriptor that you obtained by opening the device.
`dcmd`	DCMD_ALL_SETOWN
`dev_data_ptr`	A pointer to a pid_t that specifies the owner.
`n_bytes`	`sizeof(pid_t)`
`dev_info_ptr`	NULL

Description:

This command sets the owner of the given file descriptor. Clients usually use the fcntl() cover function to generate this request:

fcntl(fd, F_SETOWN, pid);

Input:

The process ID of the owner.

Output:

None.

Example:

if(devctl(fd, DCMD_ALL_SETOWN, &pid, sizeof pid, NULL) != EOK)
{
   /* Error */
}