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sane-dc240(5)		 SANE Scanner Access Now Easy		 sane-dc240(5)

NAME
       sane-dc240 - SANE backend for Kodak DC240 Digital Camera

DESCRIPTION
       The  sane-dc240	library	 implements  a	SANE (Scanner Access Now Easy)
       backend that provides  access  to  the  Kodak  DC240  camera.  THIS  IS
       EXTREMELY ALPHA CODE!  USE AT YOUR OWN RISK!!

DEVICE NAMES
       The  current  version  of the backend only allows one camera to be con‐
       nected.	The device name is always "0".

CONFIGURATION
       The contents of the dc240.conf specify the serial port and baud rate to
       use.  The baud rate specifies the maximum rate to use while downloading
       pictures.  (The camera is always	 initialized  using  9600  baud,  then
       switches	 to  the higher rate).	On a 450MHz Pentium, I usually have no
       problems downloading at 115200 baud, though the camera sometimes has to
       resend  packets	due  to	 lost characters.  Results are better when the
       "interrupt-unmask flag" is set in the IDE driver	 (hdparm  -u1).	  Sup‐
       ported baud rates are: 9600, 19200, 38400, 57600, and 115200.

       The  dumpinquiry	 line  causes  some information about the camera to be
       printed.

       cmdrespause specifies how many usec (1,000,000ths of a) between writing
       the  command  and reading the result should be used. 125000 seems to be
       the lowest I could go reliably.

       breakpause is the time in 1,000,000ths of a usec	 between  sending  the
       "back to default" break sending commands.

       Empty  lines  and  lines	 starting with a hash mark (#) are ignored.  A
       sample configuration file is shown below:

	      port=/dev/ttyS0
	      # this is a comment
	      baud=115200
	      dumpinquiry
	      cmdrespause=125000
	      breakpause=1000000

FILES
       /etc/X11/sane/sane.d/dc240.conf
	      The  backend  configuration  file	 (see  also   description   of
	      SANE_CONFIG_DIR below).

       /usr/lib/sane/libsane-dc240.a
	      The static library implementing this backend.

       /usr/lib/sane/libsane-dc240.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 config‐
	      uration file is searched in two default directories: first,  the
	      current	  working     directory	    (".")    and    then    in
	      /etc/X11/sane/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 SANE_CONFIG_DIR to "/tmp/config:"
	      would   result   in   directories	  "tmp/config",	   ".",	   and
	      "/etc/X11/sane/sane.d" being searched (in this order).

       SANE_DEBUG_DC240
	      If the library was compiled with debugging support enabled, this
	      environment variable controls the debug level for this  backend.
	      A	 value of 128 requests maximally copious debug output; smaller
	      levels reduce verbosity.

SEE ALSO
       sane(7)

AUTHOR
       Peter S. Fales

       This backend borrows heavily from the dc210 backend by Brian J. Murrell
       which is based somewhat on the dc25 backend by Peter Fales.

       The manpage was largely copied from the dc210 manpage.

BUGS
       The  major  limitation  that  I know of is that the backend assumes the
       directory in the camera is 100dc240.  Once the camera  has  taken  more
       than 9999 pictures, the directory will increment to 101dc240.  Not only
       should we check for the additional directory, but pictures may actually
       be found in multiple directories.

       More  general  comments,	 suggestions, and inquiries about frontends or
       SANE  should  go	  to   the   SANE   Developers	 mailing   list	  (see
       http://www.sane-project.org/mailing-lists.html  for details).  You must
       be subscribed to the list, otherwise your mail won't  be	 sent  to  the
       subscribers.

sane-backends 1.0.19		 23 March 2001			 sane-dc240(5)
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