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) back-
end 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 "in-
terrupt-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 second) to wait
between writing the command and reading the result. 125000 seems to be
the lowest I could go reliably.
breakpause specifies how many usec (1,000,000ths of a second) between
sending the "back to default" break and sending commands.
Empty lines and lines starting with a hash mark (#) are ignored. A sam-
ple 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_CON-
FIG_DIR below).
/usr/lib/x86_64-linux-gnu/sane/libsane-dc240.a
The static library implementing this backend.
/usr/lib/x86_64-linux-gnu/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. On *NIX systems, the direc-
tories are separated by a colon (`:'), under OS/2, they are sepa-
rated 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 sane-dc210(5) backend by Brian J.
Murrell which is based somewhat on the sane-dc25(5) backend by Peter
Fales.
The manpage was largely copied from the sane-dc210(5) manpage.
BUGS
The major limitation that I know of is that the backend assumes the di-
rectory 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 sub-
scribers.
11 Jul 2008 sane-dc240(5)
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