emlog is a Linux kernel module that makes it easy to access the most recent (and only the most recent) output from a process. It works just like "tail -f" on a log file, except that the storage required never grows. This can be useful in embedded systems where there isn't enough memory or disk space for keeping complete log files, but the most recent debugging messages are sometimes needed.
Squashfs is a highly compressed read-only filesystem for Linux. It uses zlib to compress files, inodes, and directories. All blocks are packed to minimize the data overhead, and block sizes of between 4K and 1M are supported. It is intended to be used for archival use, for live CDs, and for embedded systems where low overhead is needed.
WinDriver USB for Linux automates and simplifies the development of user mode Linux device drivers and hardware control applications for USB peripheral devices. No Linux kernel knowledge or kernel level programming is required. Including powerful tools for hardware diagnostics, automatic driver code generation, and driver debugging, as well as intuitive hardware access API, it provides a complete solution for creating high performance drivers and custom hardware access applications, thereby enabling you to focus on your driver's added-value functionality, instead of on your operating system internals.
GeeXboX is a standalone media player Linux distribution, similar to MoviX. It's a small bootable CD that allows you to play your favorite video (DivX, XviD, H.264, MPEG 1/2, VCD, DVD, OggMedia, Windows Media, RealMedia, etc.) and audio (MP3, Audio CD, Ogg Vorbis, FLAC, MPC, etc.) files. It also supports networking, and is able to play media from Windows/Samba share, NFS, UPnP A/V Media Servers, RTP/RTSP servers, or SHOUTcast. It supports TV-out, TV tuners, DVB cards, and WiFi cards. It is based on MPlayer, and can be used on any x86, x86_64, or PowerPC computer. It's easy to modify the source to build your own GeeXboX or use an alternative boot method.
Linux device driver for CueCat barcode readers that supports multiple PS/2 CueCats on either the keyboard port, mouse port (without disabling the mouse) or USB port through a PS/2 -> USB adapter, or native USB CueCats. A standalone application that doesn't require the driver and also reads barcodes from a CueCat connected to a serial port through a homemade PS/2 -> serial converter is included as well. The driver separates CueCat barcode scancodes from normal keyboard or mouse scancodes, decode the barcodes, performs error-checking on them and send them in clear text through a normal character device file. NOTE : the company that created the CueCat has disappeared. CueCat readers are no longer produced or distributed.
Thinux is a thin-client server on a live CD. It boots a network of diskless computers to automatically start an application such as a Web browser. Each thin client machine acts as a cluster node to share its processing and memory resources with each other to take the load off the server. It is a turnkey solution that does not change nor rely on your existing systems to run. By booting from a removable CD, it does not lock-in the user so it is convenient to test. It is ideal for any organizations that require large deployment of software automatically and cost effectively.