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  cam
       eras and similar equipment using the V4L (Video for Linux)
       API.
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 descrip
              tion 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  (pre
              sent 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
              rator character, then the default  directories  are
              searched  after  the  explicitly specified directo
              ries.   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
       Man  page  copied from the pint backend and edited by Hen
       ning Meier-Geinitz.
BUGS:
       If more than one video card is present, a crash may occur.
       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).
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