v4l-test: 0.1 released

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sane-v4l

sane-v4l(5)						   SANE Scanner Access Now Easy 					       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 equip-
       ment 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 configuration 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/lib64/sane/libsane-v4l.a
	      The static library implementing this backend.

       /usr/lib64/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	configura-
	      tion  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 explic-
	      itly  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 selection is missing.
       Send  bug  reports  to  the  SANE  mailing  list: sane-devel@lists.alioth.debian.org.  You must be subscribed to the list to send mail. See
       http://www.sane-project.org/mailing-lists.html for details.

SEE ALSO

       sane(7), xcam(1).

								    14 Jul 2008 						       sane-v4l(5)

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