xref: /illumos-gate/usr/src/man/man9f/ureadc.9f (revision bbf21555)
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Copyright 1989 AT&T
Copyright (c) 2006, Sun Microsystems, Inc., All Rights Reserved
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UREADC 9F "Jan 16, 2006"
NAME
ureadc - add character to a uio structure
SYNOPSIS

#include <sys/uio.h>
#include <sys/types.h>



int ureadc(int c, uio_t *uio_p);
INTERFACE LEVEL

Architecture independent level 1 (DDI/DKI).

PARAMETERS
c

The character added to the uio(9S) structure.

uio_p

Pointer to the uio(9S) structure.

DESCRIPTION

The ureadc() function transfers the character c into the address space of the uio(9S) structure pointed to by uio_p, and updates the uio structure as for uiomove(9F).

RETURN VALUES

0 is returned on success and EFAULT on failure.

CONTEXT

The ureadc() function can be called from user, interrupt, or kernel context.

SEE ALSO

uiomove (9F), uwritec (9F), iovec (9S), uio (9S)

Writing Device Drivers