add workaround for some buggy controllers #880
+32
−12
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Some controllers are buggy, so we need to try and workaround some quirks in order to use them.
Specifically here:
1/ some controllers return "command complete" events instead of "command status" events for some async commands when there's an error. That's wrong, but we can work around this by automatically returning a "command complete" event instead.
2/ some controllers return an error for some commands, even though they declare that they support them. Workaround: ignore the error, as if the command was not supported.