This is great, dpavlin! This is the best solution for waveform update. Much better than those that requires hot swapping of the flexible cable or reprogramming of the eeprom.
Basically /var/local/eink/isis.wbf is the default waveform you need for the kindle 3 to load if your eeprom is empty.
To make a complete list of steps, you need:
1. Jailbreak and install usbnetwork,
https://www.mobileread.com/forums/sh...ad.php?t=88004
2. Enable usbnetwork to automatically start when usb is connected, so you can quickly experiment with a few different waveforms. Check the readme of usbnetwork package.
3. When kindle started, connect usb to your computer and ssh to it. Link a pre-stored waveform from /opt/eink/images/ to /var/local/eink/isis.wbf, reboot and test.
ln -s /opt/eink/images/xxx.wbf /var/local/eink/isis.wbf
For me only the oldest wbf works, maybe my new panel is really an old model.