The preferred behaviour would be: 1. Run auto-detection. If this is successful write the results to the configuration file, or perhaps instead it should proceed to step 2 with detection results as the default.
2. Prompt for the braille display type and the port, writing the results to the configuration file. The prompt should be a Debian dialogue with a list of options. Now from the mail that started this thread it appears that part 2 is leading to some worries. Is it inherently complicated, or only that the current implementation is complicated? If the latter, I would suggest rewriting it rather than dropping it. I don't understand why it should be difficult: prompting for information and writing the results to a configuration file is standard practice in Debian installation scripts.
