If you run the following command: $ write eeprom 0x00 0x10 A B C ...
It will write the following data to EEPROM:
|ABCCCCCCCCCCCCCC|
starting from address 0x00
These commands are been meaningful only on direct bitbang programming
adapters which implement a pgm->setpin method.
Disable these commands for all other programmers, and issue an
informational message.
This is a partial fix for bug #790.