PARPORT_WRITE

Section: (9)
Updated: 17 July 2003
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NAME

parport_write - write a block of data to a parallel port  

SYNOPSIS

ssize_t parport_write (struct parport * port, const void * buffer, size_t len);  

ARGUMENTS

port
port to write to
buffer
data buffer (in kernel space)
len
number of bytes of data to transfer
 

DESCRIPTION

This will write up to len bytes of buffer to the port specified, using the IEEE 1284 transfer mode most recently negotiated to (using parport_negotiate), as long as that mode supports forward transfers (host to peripheral).

It is the caller's responsibility to ensure that the first len bytes of buffer are valid.

This function returns the number of bytes transferred (if zero or positive), or else an error code.  

ABOUT THIS DOCUMENT

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".

If you have comments on the formatting of this manpage, then please contact Michael Still (mikal@stillhq.com).

This documentation was generated with kernel version 2.5.74.


 

Index

NAME
SYNOPSIS
ARGUMENTS
DESCRIPTION
ABOUT THIS DOCUMENT

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Time: 03:18:42 GMT, July 17, 2003