[bohol]

Maybe I'm missing something, but I'm not sure what a disassembler has to do with datasheets?

[wolfgke]

I think he means that if no datasheet is available, you can try to reverse engineer it by using, say, a disassembler.

[bohol]

But a dissembler doesn't produce the same information that a datasheets provides? Unless he means to physically disassemble, but that isn't very easy.

[wolfgke]

Indeed. But perhaps enough to write an (incomplete?) open source driver?