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fix expected output

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Mirabellensaft 2022-01-12 18:06:35 +01:00
parent eec0e0a6bb
commit a4c90e7909
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31
embedded-workshop-book/src/data-stage.md
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@ -46,18 +46,25 @@ The device descriptor is 18 bytes long but the host may ask for fewer bytes (see
Once you have successfully responded to the GET_DESCRIPTOR Device request you should get logs like these (if you are logging like `usb-3` does):
``` console
INFO:usb_3 -- USB: UsbReset @ 342.071532ms
INFO:usb_3 -- USB: UsbEp0Setup @ 414.855956ms
INFO:usb_3 -- SETUP: bmrequesttype: 128, brequest: 6, wlength: 64, windex: 0, wvalue: 256
INFO:usb_3 -- GET_DESCRIPTOR Device [length=64]
INFO:dk::usbd -- EP0IN: start 18B transfer
INFO:usb_3 -- USB: UsbEp0DataDone @ 415.222166ms
INFO:dk::usbd -- EP0IN: transfer done
INFO:usb_3 -- USB: UsbReset @ 465.637206ms
INFO:usb_3 -- USB: UsbEp0Setup @ 538.208007ms
INFO:usb_3 -- SETUP: bmrequesttype: 0, brequest: 5, wlength: 0, windex: 0, wvalue: 27
ERROR:usb_3 -- unknown request (goal achieved if GET_DESCRIPTOR Device was handled)
INFO:dk -- `dk::exit() called; exiting ...`
USB: UsbReset @ Duration { secs: 0, nanos: 211334227 }
USB: UsbEp0Setup @ Duration { secs: 0, nanos: 252380370 }
SETUP: bmrequesttype: 0, brequest: 5, wlength: 0, windex: 0, wvalue: 52
USB: UsbEp0Setup @ Duration { secs: 0, nanos: 254577635 }
SETUP: bmrequesttype: 128, brequest: 6, wlength: 8, windex: 0, wvalue: 256
GET_DESCRIPTOR Device [length=8]
EP0IN: start 8B transfer
USB: UsbEp0DataDone @ Duration { secs: 0, nanos: 254852293 }
EP0IN: transfer done
USB: UsbEp0Setup @ Duration { secs: 0, nanos: 257568358 }
SETUP: bmrequesttype: 128, brequest: 6, wlength: 18, windex: 0, wvalue: 256
GET_DESCRIPTOR Device [length=18]
EP0IN: start 18B transfer
USB: UsbEp0DataDone @ Duration { secs: 0, nanos: 257843016 }
EP0IN: transfer done
USB: UsbEp0Setup @ Duration { secs: 0, nanos: 259674071 }
SETUP: bmrequesttype: 128, brequest: 6, wlength: 9, windex: 0, wvalue: 512
ERROR unknown request (goal achieved if GET_DESCRIPTOR Device was handled before)
`dk::exit()` called; exiting ...
```
A solution to this exercise can be found in `src/bin/usb-3-solution.rs`.