.\" This manpage has been automatically generated by docbook2man 
.\" from a DocBook document.  This tool can be found at:
.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/> 
.\" Please send any bug reports, improvements, comments, patches, 
.\" etc. to Steve Cheng <steve@ggi-project.org>.
.TH "PARPORT_FIND_CLASS" "" "06 October 2005" "" ""

.SH NAME
parport_find_class \- find a device in a specified class
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
int parport_find_class  (parport_device_class \fIcls\fB, int \fIfrom\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIcls\fB\fR
required class
.TP
\fB\fIfrom\fB\fR
previous device number found in search, or NULL for
new search
.SH "DESCRIPTION"
.PP
This walks through the list of parallel port devices looking
for a device whose 'CLS' string matches \fIcls\fR in their IEEE
1284 Device ID.
.PP
When a device is found matching those requirements, its device
number is returned; if there is no matching device, a negative
value is returned.
.PP
A new search it initiated by passing NULL as the \fIfrom\fR
argument.  If \fIfrom\fR is not NULL, the search continues from
that device.