Uart: polarity inversion

[anti-social]

As I can see an Esp32c3 chip supports inversion: uart_set_line_inverse

Have tested it from Micropython connecting to external module pins of my Radiomaster handset (it uses half-duplex serial interface with inverted polarity). So it would be nice to have the option in Rust.

[bjoernQ]

There is an open PR for that already here: #1151

But it should already work via a slightly different mechanism introduced in #912

[anti-social]

Oh, sorry. Haven't searched in PRs.

But it should already work via a slightly different mechanism introduced in #912

To make it work I should configure inversion on uart pins and then create a uart device?

[bjoernQ]

Oh, sorry. Haven't searched in PRs.

No problem! 😄

To make it work I should configure inversion on uart pins and then create a uart device?

Yes, it should work that way but t.b.h. I haven't tried it with UART myself, yet