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![](https://lemmy.ml/pictrs/image/q98XK4sKtw.png)
Here’s the github page for the program that’s at least partially responsible for that output.
From that page it appears detected means “Device is detected, driver is found, but not tested yet” and working means “Driver is found and operates properly (passed static or dynamic tests)”
I had a peek at the source code and although I don’t actually know Rust it looks like that error comes from a check for character length in the function “is_valid_body_field”. Strangely it does the same check twice against two variables “POST_BODY_MAX_LENGTH” and “BODY_MAX_LENGTH”.
The smaller of the two is BODY_MAX_LENGTH which is set at 10000, so I assume the max character limit is 10,000. There are no other checks in that function other than the character count and that’s the only place in the source code that the text “invalid_body_field” shows up so I assume it’s only sent as a response to too much text, but as I said I don’t actually know Rust so I could be wrong.