USB HID

[thejpster]

Would it be useful if I contributed USB HID support? I just added support for decoding keyboard reports to my pc-keyboard crate and so I guess the next thing for me to do is to actually get some USB HID reports from a keyboard.

[pdh11]

Oops I think I had notifications turned off for some reason. Anyway yes please, that would be great!

[thejpster]

I got stuck trying to work out how to pump for UsbEvents and reports from a Stream at the same time.

https://github.com/thejpster/pico-term-rs/blob/14be7f77c7dd7a4613f97c4f9bf7838532b4fe50/core0/src/main.rs#L194

Uses https://github.com/thejpster/cotton/blob/62ef3be2bebf6b4fea5f80756611569f0817a737/cotton-usb-host-hid/src/hid.rs

[thejpster]

I poked at this again and I have no idea how to use the interrupt endpoint API. Any examples or pointers would be very helpful.

[thejpster]

Thank you @pdh11 for the examples you linked on Mastodon. I'll update this PR when I'm back off vacation.

[pdh11]

I just released a new cotton-usb-host that fixes Low-Speed devices on Full-Speed hubs (which keyboards and mice often are). When you rebase, you may need to make a minor change to pass the "&UsbDevice" rather than the "address" to UsbBus::interrupt_endpoint_in().