uwritec.9f revision c10c16dec587a0662068f6e2991c29ed3a9db943
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Copyright (c) 2006, Sun Microsystems, Inc., All Rights Reserved.
Copyright 1989 AT&T
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
Copyright (c) 2006, Sun Microsystems, Inc., All Rights Reserved.
Copyright 1989 AT&T
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
uwritec 9F "16 Jan 2006" "SunOS 5.11" "Kernel Functions for Drivers"
NAME
uwritec - remove a character from a uio structure
SYNOPSIS
#include <sys/uio.h> int uwritec(uio_t *uio_p);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI)
PARAMETERS
uio_p
Pointer to the uio(9S) structure
DESCRIPTION
The uwritec() function returns a character from the uio structure pointed to by uio_p and updates the uio structure. See uiomove(9F).
RETURN VALUES
The next character for processing is returned on success, and -1 is returned if uio is empty or if there is an error.
CONTEXT
The uwritec() function can be called from user, interrupt, or kernel context.
SEE ALSO
uiomove(9F), ureadc(9F), iovec(9S), uio(9S)
Writing Device Drivers