kopia lustrzana https://gitlab.com/sane-project/website
117 wiersze
4.3 KiB
HTML
117 wiersze
4.3 KiB
HTML
<HTML>
|
||
<HEAD>
|
||
<TITLE>sane-v4l.5</TITLE>
|
||
</HEAD>
|
||
<BODY BGCOLOR=#FFFFFF TEXT=#000000><H1 ALIGN=CENTER><IMG SRC="../images/sane.png" HEIGHT=117 WIDTH=346></H1>
|
||
<H1>sane-v4l.5</H1>
|
||
<HR>
|
||
<PRE>
|
||
<!-- Manpage converted by man2html 3.0.1 -->
|
||
<B><A HREF="sane-v4l.5.html">sane-v4l(5)</A></B> SANE Scanner Access Now Easy <B><A HREF="sane-v4l.5.html">sane-v4l(5)</A></B>
|
||
|
||
|
||
</PRE>
|
||
<H2>NAME</H2><PRE>
|
||
sane-v4l - SANE interface for Video for Linux API
|
||
|
||
|
||
</PRE>
|
||
<H2>DESCRIPTION</H2><PRE>
|
||
The <B>sane-v4l</B> library implements a SANE (Scanner Access Now Easy) back‐
|
||
end that provides generic access to video cameras and similar equipment
|
||
using the V4L (Video for Linux) API.
|
||
|
||
This is ALPHA software. Really! Important features are missing and
|
||
there are lots of bugs. The code is currently only tested on a Linux
|
||
2.4 system with a Hauppauge WinTV video card.
|
||
|
||
|
||
</PRE>
|
||
<H2>DEVICE NAMES</H2><PRE>
|
||
This backend expects device names of the form:
|
||
|
||
<I>special</I>
|
||
|
||
Where <I>special</I> is the UNIX path-name for the special device that corre‐
|
||
sponds to the v4l device. The special device name must be a v4l device
|
||
or a symlink to such a device. For example, such a device name could
|
||
be <I>/dev/video0</I> or <I>/dev/bttv0</I>.
|
||
|
||
|
||
</PRE>
|
||
<H2>CONFIGURATION</H2><PRE>
|
||
The contents of the <I>v4l.conf</I> file is a list of device names that corre‐
|
||
spond to v4l devices. Empty lines and lines starting with a hash mark
|
||
(#) are ignored. A sample configuration file is shown below:
|
||
|
||
/dev/bttv0
|
||
# this is a comment
|
||
/dev/video3
|
||
|
||
|
||
</PRE>
|
||
<H2>FILES</H2><PRE>
|
||
<I>/usr/local/etc/sane.d/v4l.conf</I>
|
||
The backend configuration file (see also description of
|
||
<B>SANE_CONFIG_DIR</B> below).
|
||
|
||
<I>/usr/local/lib/sane/libsane-v4l.a</I>
|
||
The static library implementing this backend.
|
||
|
||
<I>/usr/local/lib/sane/libsane-v4l.so</I>
|
||
The shared library implementing this backend (present on systems
|
||
that support dynamic loading).
|
||
|
||
|
||
</PRE>
|
||
<H2>ENVIRONMENT</H2><PRE>
|
||
<B>SANE_CONFIG_DIR</B>
|
||
This environment variable specifies the list of directories that
|
||
may contain the configuration file. Under UNIX, the directories
|
||
are separated by a colon (`:'), under OS/2, they are separated
|
||
by a semi-colon (`;'). If this variable is not set, the config‐
|
||
uration file is searched in two default directories: first, the
|
||
current working directory (".") and then in
|
||
/usr/local/etc/sane.d. If the value of the environment variable
|
||
ends with the directory separator character, then the default
|
||
directories are searched after the explicitly specified directo‐
|
||
ries. For example, setting <B>SANE_CONFIG_DIR</B> to "/tmp/config:"
|
||
would result in directories "tmp/config", ".", and
|
||
"/usr/local/etc/sane.d" being searched (in this order).
|
||
|
||
<B>SANE_DEBUG_V4L</B>
|
||
If the library was compiled with debug support enabled, this
|
||
environment variable controls the debug level for this backend.
|
||
E.g., a value of 128 requests all debug output to be printed.
|
||
Smaller levels reduce verbosity.
|
||
|
||
|
||
</PRE>
|
||
<H2>AUTHOR</H2><PRE>
|
||
Juergen G. Schimmer, Henning Meier-Geinitz
|
||
|
||
|
||
</PRE>
|
||
<H2>BUGS:</H2><PRE>
|
||
If more than one video card is present, a crash may occur. Frequency
|
||
and geometry selection is missing.
|
||
Send bug reports to the SANE mailing list:
|
||
sane-devel@alioth-lists.debian.net. You must be subscribed to the list
|
||
to send mail. See http://www.sane-project.org/mailing-lists.html for
|
||
details.
|
||
|
||
|
||
</PRE>
|
||
<H2>SEE ALSO</H2><PRE>
|
||
<B><A HREF="sane.7.html">sane(7)</A></B>, <B><A HREF="xcam.1.html">xcam(1)</A></B>.
|
||
|
||
14 Jul 2008 <B><A HREF="sane-v4l.5.html">sane-v4l(5)</A></B>
|
||
</PRE>
|
||
<HR>
|
||
<ADDRESS>
|
||
Man(1) output converted with
|
||
<a href="http://www.oac.uci.edu/indiv/ehood/man2html.html">man2html</a>
|
||
</ADDRESS>
|
||
</BODY>
|
||
</HTML>
|