[USB] Add a command in order to let software walet trigger an adress verification

[pythcoiner]

At the moment Specter is the only signing device on USB that do not have a command to trigger the address verification flow on device

[SovereignGG]

Is this also some how related with the fact I can't broadcast transactions with QR signing using BULL wallet or Sparrow?

[stepansnigirev]

At the moment Specter is the only signing device on USB that do not have a command to trigger the address verification flow on device

bitcoin:<address>?index=<index> is the command format - works both with USB and QR.

For more info see communication.md

[stepansnigirev]

The only problem is that there is no reply to this command - it either shows QR code with the address, or does nothing. Would be nice to add a response from the device, and show error on screen if address is invalid.

[pythcoiner]

bitcoin:<address>?index=<index> is the command format - works both with USB and QR.

i've implemented this in async-hwi: wizardsardine/async-hwi#120

it seems passing bitcoin:<address>?index=<index> over USB seems not a valid command, the device only display this for few instants:

Processing host data...
Please wait until the process is complete.

Looking at USB comminucation, it seems showaddr command is not designed to be used w/ arbitrary miniscript:

• tr script are not supported
• using a (single) <derivation> arg does not really makes sense because keys can have different derivation paths

maybe a new command showmsaddr <descriptor_name> <index> makes sense?