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sane-dc240(5)									    sane-dc240(5)

       sane-dc240 - SANE backend for Kodak DC240 Digital Camera

       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!!

       The current version of the backend only allows one camera to  be  connected.   The  device
       name is always "0".

       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).   Supported  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:

	      # this is a comment

	      The backend configuration file (see also description of SANE_CONFIG_DIR below).

	      The static library implementing this backend.

	      The shared library implementing this  backend  (present  on  systems  that  support
	      dynamic loading).

	      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).

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


       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 largeley copied from the dc210 manpage.

       The major limitation that I know of is that the backend assumes the directory in the  cam-
       era  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  pic-
       tures 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.mostang.com/sane/mail.html for details).  You
       must be subscribed to the list, otherwise your mail won't be sent to the subscribers.

					  23 March 2001 			    sane-dc240(5)
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