st2205term
A terminal for your Picframe
(or DisplayLink Device)

Background:
There are many keychain size Digital Photo Frame products that use the st2205 chipset which can be hacked for use as a tiny USB powered color screen. st2205term can provide a terminal interface onto your hacked device when using Linux. It was originally created for use with a Seagate Dockstar that was hacked to run Debian Linux but should work on most Linux systems and has a minimal memory and CPU footprint.

Update: v0.11 added support for ax206 based picture frames (thanks ax206term)
Update: v0.10 added autodetection of keyboard and picframe devices. New --secreensaver=... option.
Update: v0.09 now has an additional --command=... option and comes with an example stats utility (dstat reformatter)
Update: v0.08 includes support for smooth scrolling on Displaylink and blinkling cursor support
Update: v0.07 has its own font support and no longer requires libgd
Update: v0.06 supports hotplugging - keyboard, picframe or Displaylink device
Update: v0.04 supports DisplayLink devices via libdlo.

st2205 Picframe attached to Dockstar
Hacked Coby DP152 Picframe attached to Seagate Dockstar running Debian

lynx on st2205term
Lynx running on st2205term

More Info:
Original Hack
Picframe Project (Device list - Warning: list is out of date - DO NOT buy a DP151SX from Amazon)
st2205tool (contains libst2205 library required by st2205term)
Debian on Dockstar
PG's Picframe on Dockstar hacking post
PG's perl generate-hack.pl script to generate hacks for new st2205 devices
libdlo Linux Displaylink library
hackfin's ax206 blog
Appotech ax206 info on Picframe Project

Downloads:
st2205term v.0.10 source code
st2205term/ax206term v.011 source code
generate-hack.pl

Prerequisities:
You need libst2205 (part of st2205tool) and librote installed before you can compile:

Debian Squeeze instructions (run as root):
# curses (needed by librote)
apt-get install libncurses5-dev
# st2205tool (optional - you can leave it out if you use libdlo instead)
wget -nd http://www.neophob.com/files/st2205tool-1.4.3.tar.gz
tar xvfz st2205tool-1.4.3.tar.gz
apt-get install libgd2-xpm-dev
cd st2205tool && make && make install
cd ..
# librote
wget -nd http://downloads.sourceforge.net/project/rote/rote/rote-0.2.8/rote-0.2.8.tar.gz
tar xvfz rote-0.2.8.tar.gz
cd rote-0.2.8/
./configure && make && make install
cd ..
# libdlo (optional - only if you want Displaylink support)
wget -nd http://people.freedesktop.org/~berniet/libdlo-0.1.2.tar.gz
tar xvfz libdlo-0.1.2.tar.gz
cd libdlo-0.1.2/
./configure && make && make install
cd ..
How to compile st2205term:
# run as root
wget -nd http://jeff.doozan.com/debian/lcd/st2205term-0.10.tgz
tar xvfz st2205term-0.10.tgz
cd st2205term-0.10/
./mak # look at script if you want displaylink support
How to compile ax206term:

Note: ax206term source was contributed and my ax206 based picframe is currently not working so please consider this experimental for now. 
# run as root
wget -nd http://jeff.doozan.com/debian/lcd/st2205term-0.11.tgz
tar xvfz st2205term-0.11.tgz
cd st2205term-0.11/
./mak-dpf # look at script and modify if necessary - it downloads and installs things
How to run - autodetect

By default st2205term will try to autodetect your keyboard and display. st2205term will also look for keymapping data (us.kmap) and font data (fonts.txt) in the same directory as the st22095term binary resides if they are not explicitly set on the command line:
export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH # to find librote
./st2205term
How to run if you have multiple keyboards/display devices

Find your picfame device:
# ls -al /dev/disk/by-id/ | grep SITRONIX
# lrwxrwxrwx 1 root root   9 Nov 24 21:04 usb-SITRONIX_MULTIMEDIA-0:0 -> ../../sdb
Plug in your USB keyboard and find the input device:
# ls -al /dev/input/by-id/ | grep kbd
# lrwxrwxrwx 1 root root   9 Nov 24 11:17 usb-060b_USB_Keyboard-event-kbd -> ../event0
Start up st2205term (run as root):
export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH # to find librote
./st2205term --font=tiny --picframe=/dev/sdb --keyboard=/dev/input/event0 --keymap=./us.kmap --fontdata=./fonts.txt
Command Line Options:

--font=tiny | small | large | giant  - sets the font size - also determines the terminal dimensions - default is tiny
--picframe=<device> or --dlo - sets the target ouput Picframe device, or use displaylink device instead if --dlo specified
--keyboard=<device> - sets the input keyboard device - this can be plugged/unplugged while st2205term is running
--keymap=<file> - sets the key mapping definitions used to map evdev keyboard events to Linux keys
--command=<command> - run a shell command rather than 'bash --login' when terminal is connected
--screensaver=<command> - run a shell command as a screensaver when keyboard is idle
--fontdata=<file> - sets the font definition file that determines what the fonts look like
--dlo-fast-scroll=yes | no - enables/disables enhanced scrolling on Displaylink devices
--blink - makes the cursor blink
--verbose or -v - turns on debug output

Device Naming:
Real device paths like /dev/sdb or /dev/input/event0 may change at boot time or depending on the order of detection or if devices are added/removed. To help with hot plugging st2205term can also use udev by-id symlinks to find the right device.

For example, on my PC my picframe is accessible by either /dev/sdb or /dev/disk/by-id/usb-SITRONIX_MULTIMEDIA-0\:0
(remember to escape \ the :)
ls -al /dev/disk/by-id/* | grep sdb
lrwxrwxrwx 1 root root  9 Nov 29 22:09 /dev/disk/by-id/usb-SITRONIX_MULTIMEDIA-0:0 -> ../../sdb
Udev symlinks can be used to identify the keyboard as well ( ls -al /dev/input/by-id ).

Contact: Peter Gunn (email st2205term at wingovers dot com)