1 .\" Copyright (c) 1996 Doug Rabson
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27 .\" $FreeBSD: src/share/man/man9/VOP_IOCTL.9,v 1.5.2.1 2001/12/17 11:30:18 ru Exp $
28 .\" $DragonFly: src/share/man/man9/VOP_IOCTL.9,v 1.3 2004/06/01 11:36:53 hmp Exp $
35 .Nd device specific control
40 .Fn VOP_IOCTL "struct vnode *vp" "u_long command" "caddr_t data" "int fflag" "struct ucred *cred" "struct proc *p"
42 Manipulate a file in device dependent ways.
45 .Bl -tag -width command
47 the vnode of the file (normally representing a device)
49 the device specific operation to perform
51 extra data for the specified operation
55 the caller's credentials
60 Most filesystems do not implement this entry point.
62 The file should not be locked on entry.
64 If successful, zero is returned, otherwise an appropriate error code.
68 vop_ioctl(struct vnode *vp, int command, caddr_t data, int fflag,
69 struct ucred *cred, struct proc *p)
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