Powertweak-Linux is a tool to tune your system to its optimal performance settings. It started life as the replacement for the now obsolete kernel option 'tune PCI bridges', and has been extended to provide more features and support more chipsets. It can also tune network/filesystem performance using /proc/sys entries, disk elevator settings, and x86 CPU registers (needs 2.2.18 or 2.4.0test kernel), CDROM speeds, hdparm type features, and Sony VAIO backlight. It has both a GTK GUI and a text-based lister.
QStick is a program which uses the XTest extension in XFree86 to send keyboard messages to an X server from a Linux-supported joystick. The program consists of the KBStick executable which reads joystick input and dispatches keypress messages to X, and the QStick shell script which configures environment varibles read by the executable to assign X KeyCodes to the joystick directions & button presses.
The Qt XInput Extension is a C library adding support for XInput devices (like tablets or joysticks) to Qt-based X11 applications. QXi supports devices with up to six valuator axes in absolute mode, up to 32 buttons, and any number of keys. It is built using autoconf and libtool, and comes with a simple example application.
This Samsung ML-85G printer driver can print at the full resolution of 600x600 dpi, and at the maximum speed (about two times faster than the driver supplied by the manufacturer under Windows). It needs Ghostscript to convert your PostScript files into PBM images, piping the output directly to the driver. The driver runs in user space, but calls iopl(), so it should be set suid root to execute transparently.
SANE stands for "Scanner Access Now Easy" and is an application programming interface (API) that provides standardized access to any raster image scanner hardware (flatbed scanner, handheld scanner, video and still cameras, framegrabbers, etc.). The SANE standard is public domain and its discussion and development are open to everybody. The source code is written for UNIX (including Linux) and is available under the GPL, but commercial applications and backends are welcome. The package contains the libraries, net support, and scanimage. The X frontends xscanimage and xcam can be found in sane-frontends.