Return to ioctl.2 CVS log

Up to [Power 6/32 Unix Tahoe 4.2BSD] / cci / usr / src / man / man2

Annotation of cci/usr/src/man/man2/ioctl.2, revision 1.1

1.1     ! root        1: .TH IOCTL 2 "7 July 1983"
        !             2: .UC 4
        !             3: .SH NAME
        !             4: ioctl \- control device
        !             5: .SH SYNOPSIS
        !             6: .nf
        !             7: .ft B
        !             8: #include <sys/ioctl.h>
        !             9: .PP
        !            10: .ft B
        !            11: ioctl(d, request, argp)
        !            12: int d, request;
        !            13: char *argp;
        !            14: .fi
        !            15: .ft R
        !            16: .SH DESCRIPTION
        !            17: .I Ioctl
        !            18: performs a variety of functions
        !            19: on open descriptors.  In particular, many operating
        !            20: characteristics of character special files (e.g. terminals)
        !            21: may be controlled with
        !            22: .I ioctl
        !            23: requests.
        !            24: The writeups of various devices in section 4 discuss how
        !            25: .I ioctl
        !            26: applies to them.
        !            27: .PP
        !            28: An  ioctl
        !            29: .I request
        !            30: has encoded in it whether the argument is an \*(lqin\*(rq parameter
        !            31: or \*(lqout\*(rq parameter, and the size of the argument \fIargp\fP in bytes.
        !            32: Macros and defines used in specifying an ioctl
        !            33: .I request
        !            34: are located in the file
        !            35: .IR <sys/ioctl.h> .
        !            36: .SH "RETURN VALUE
        !            37: If an error has occurred, a value of \-1 is returned and
        !            38: .I errno
        !            39: is set to indicate the error.
        !            40: .SH ERRORS
        !            41: .I Ioctl
        !            42: will fail if one or more of the following are true:
        !            43: .TP 15
        !            44: [EBADF]
        !            45: \fID\fP is not a valid descriptor.
        !            46: .TP 15
        !            47: [ENOTTY]
        !            48: \fID\fP is not associated with a character
        !            49: special device.
        !            50: .TP 15
        !            51: [ENOTTY]
        !            52: The specified request does not apply to the kind
        !            53: of object which the descriptor \fId\fP references.
        !            54: .TP 15
        !            55: [EINVAL]
        !            56: \fIRequest\fP or \fIargp\fP is not valid.
        !            57: .SH "SEE ALSO"
        !            58: execve(2), fcntl(2), mt(4), tty(4), intro(4N)

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.