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  connected.   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).   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:

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

FILES

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

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

       /usr/lib/arch_triplet/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 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_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.

                                           11 Jul 2008                              sane-dc240(5)