sane-dc240.5 - Online Linux Manual Page

sane−dc240 - Online Linux Manual PageSection : 5
Updated : 11 Jul 2008
Source :
Note : SANE Scanner Access Now Easy
.IX sane−dc240

NAMEsane−dc240 − SANE backend for Kodak DC240 Digital Camera

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

CONFIGURATIONThe 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 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 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/lib64/sane/libsane−dc240.a The static library implementing this backend. /usr/lib64/sane/libsane−dc240.so The shared library implementing this backend (present on systems that support dynamic loading).

ENVIRONMENTSANE_CONFIG_DIR This environment variable specifies the list of directories that may contain the configuration file. On *NIX systems, 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 ALSOsane(7)

AUTHORPeter 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.

BUGSThe 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. 0

Johanes Gumabo

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