Further cleanup; give up on heapless PR, external interchange/trussed

Cargo.toml

@@ -8,9 +8,10 @@ edition = "2018"
 [dependencies]
 ctap-types = { path = "../ctap-types" }
 delog = "0.1.0-alpha.3"
-heapless = { version = "0.5.5" }
+heapless = "0.5.6"
+heapless-bytes = "0.1.1"
 hid-dispatch = { path = "../hid-dispatch" }
-interchange = { path = "../interchange" }
+interchange = "0.1.0"
 serde = { version = "1.0", default-features = false }
 usb-device = "0.2.3"
 

src/pipe.rs

@@ -456,7 +456,7 @@ impl<'alloc, Bus: UsbBus> Pipe<'alloc, Bus> {
 
             _ => {
                 self.interchange.request(
-                    (request.command, heapless::ByteBuf::from_slice(&self.buffer[..request.length as usize]).unwrap())
+                    (request.command, heapless_bytes::Bytes::try_from_slice(&self.buffer[..request.length as usize]).unwrap())
                 ).unwrap();
                 self.state = State::WaitingOnAuthenticator(request);
             },