Serialize BitBox API calls

[benma]

No description provided.

[NickeZ]

Did you consider having a single task for communication and using channels instead?

The benefit of using a dedicated task that serializes the requests is that the serialization is enforced by the compiler.

No strong opinion though, it just seems like a better pattern to me.

[Tomasvrba]

ack, nice improvement

[benma]

Did you consider having a single task for communication and using channels instead?

The benefit of using a dedicated task that serializes the requests is that the serialization is enforced by the compiler.

No strong opinion though, it just seems like a better pattern to me.

Only briefly, but I avoided it because it would be a much larger and more invasive change 🤔 Note that the device communication is not (only) the thing that needs to be serialized, but the high level methods like btcSignTx and btcSignMsg need to be serialized - they perform multiple device queries that can't be interleaved.