Home Man
Search
Today's Posts
Register

Linux & Unix Commands - Search Man Pages

RedHat 9 (Linux i386) - man page for sane-qcam (redhat section 5)

sane-qcam(5)					 File Formats Manual					 sane-qcam(5)

NAME
sane-qcam - SANE backend for Connectix QuickCam cameras
DESCRIPTION
The sane-qcam library implements a SANE (Scanner Access Now Easy) backend that provides access Connectix QuickCam cameras.
DEVICE NAMES
This backend expects device names of the form: port Where port is the I/O port address at which the device resides. This address is normally specified in hexa- decimal using C syntax (e.g., 0x37b) and may be prefixed with the letter "u" (e.g., u0x37b) to force the back- end to access the camera in uni-directional mode.
CONFIGURATION
The contents of the qcam.conf file is a list port addresses that may be connected to a Connectix QuickCam. Empty lines and everything starting from a hash mark (#) up to the end of a line are ignored. A sample con- figuration file is shown below: 0x37b # /dev/lp0 0x378 # /dev/lp1 u0x278 # /dev/lp2 forced in uni-directional mode 0x3bc # /dev/lp0 (alternate address) In general, it is safest to list only the port addresses that really correspond to a QuickCam. For example, if one of the listed addresses actually connect to a printer, then starting up this backend will cause the printer to perform a device reset (which is generally undesirable).
FILES
/etc/sane.d/qcam.conf The backend configuration file (see also description of SANE_CONFIG_DIR below). /usr/lib/sane/libsane-qcam.a The static library implementing this backend. /usr/lib/sane/libsane-qcam.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 directo- ries: first, the current working directory (".") and then in /etc/sane.d. If the value of the environ- ment 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_QCAM If the library was compiled with debug support enabled, this environment variable controls the debug level for this backend. E.g., a value of 128 requests all debug output to be printed. Smaller levels reduce verbosity.
AUTHOR
David Mosberger
BUGS
Support is currently limited to the color version of the QuickCam. The black-and-white camera is starting to work too, but I don't believe it works in all cases yet. Reportedly, acquiring images of certain sizes work fine, but others result in shifted images (sounds like a problem due to byte-padding). The program needs root-priviledges since it needs to be able to access the camera's I/O ports.
SEE ALSO
sane(7) 25 October 1997 sane-qcam(5)


All times are GMT -4. The time now is 04:12 PM.

Unix & Linux Forums Content Copyrightę1993-2018. All Rights Reserved.
UNIX.COM Login
Username:
Password:  
Show Password