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RedHat 9 (Linux i386) - man page for sane-v4l (redhat section 5)

sane-v4l(5)			       File Formats Manual			      sane-v4l(5)

NAME
       sane-v4l - SANE interface for Video for Linux API

DESCRIPTION
       The  sane-v4l  library  implements  a SANE (Scanner Access Now Easy) backend 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.

DEVICE NAMES
       This backend expects device names of the form:

	      special

       Where  special  is  the	UNIX path-name for the special device that corresponds 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 /dev/video0 or /dev/bttv0.

CONFIGURATION
       The  contents  of  the  v4l.conf  file  is  a  list of device names that correspond to v4l
       devices.  Empty lines and lines starting with a hash mark (#) are ignored.  A sample  con-
       figuration file is shown below:

	      /dev/bttv0
	      # this is a comment
	      /dev/video3

FILES
       /etc/sane.d/v4l.conf
	      The backend configuration file (see also description of SANE_CONFIG_DIR below).

       /usr/lib/sane/libsane-v4l.a
	      The static library implementing this backend.

       /usr/lib/sane/libsane-v4l.so
	      The  shared  library  implementing  this	backend  (present on systems that support
	      dynamic loading).

ENVIRONMENT
       SANE_CONFIG_DIR
	      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  configuration  file is searched in two default directories: first, the current
	      working directory (".") and then in /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  directories.   For	example,  setting
	      SANE_CONFIG_DIR  to  "/tmp/config:"  would result in directories "tmp/config", ".",
	      and "/etc/sane.d" being searched (in this order).

       SANE_DEBUG_V4L
	      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.

AUTHOR
       Juergen G. Schimmer, Henning Meier-Geinitz

BUGS:
       If more than one video card is present, a crash may occur. Frequency and  geometry  selec-
       tion is missing.
       Send bug reports to the SANE mailing list: sane-devel@mostang.com.  You must be subscribed
       to the list to send mail. See http://www.mostang.com/sane/mail.html for details.

SEE ALSO
       sane(7), xcam(1).

					   28 Aug 2002				      sane-v4l(5)


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