IRQTUNE -- A Linux IRQ Priority Optimizer - irqtune changes the IRQ priority of devices to allow devices that require high priority and fast service (e.g. serial ports, modems) to have it - http://cae.best.vwh.net/irqtune/
I-opener and Linux - Netpliance mods and forums. - http://www.linux-hacker.net/cgi-bin/UltraBoard/UltraBoard.pl
Linux Parallel Port Home Page - Using external peripheral devices connected to a personal computer's parallel printer port with Linux. PPA and parport drivers. - http://www.torque.net/linux-pp.html
ESDI and MCA with Linux - Installing Debian 1.2 and 1.3 on ESDI MCA (e.g. PS/2) - http://mojo.calyx.net/~bri/projects/debian/MCA/
The Linux 8250/16550 Serial Driver - This project contains he Linux serial driver for 8250/16550 (and compatible) UARTs. It is packaged in a stand-alone form that can be used with older and newer kernel versions. It also serves as a focal point for further seria - http://sourceforge.net/project/?form_grp=310