drivers: udc_nrf: handle overwritten Set Address commands #80666
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Set Address behavior is not specified when wValue is greater than 127, or if wIndex or wLength are non-zero. USB stack did check wValue and wLength but didn't care about wIndex value. Extend the check so non-zero wIndex also results in STALL response. Signed-off-by: Tomasz Moń <[email protected]>
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USBD peripheral automatically handles Set Address command which can lead to state mismatch between USB stack and the host. Keep track of device address and issue fake Set Address commands on mismatch. This fixes default vs addressed state mismatch that can occur due to sufficently high SETUP handling latency. The state mismatch was most commonly seen as SET CONFIGURATION failure when the enumeration happened during periods with increased latency. Signed-off-by: Tomasz Moń <[email protected]>
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jfischer-no
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Nov 6, 2024
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@carlescufi and @tmon-nordic is this really needing to be in 4.0? it doesn't have enough approvals and RC3 is already done. I'd like move to 4.1.0 and pull it into a 4.0.1 backport if it is that needed. |
MarekPieta
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Nov 19, 2024
carlescufi
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Nov 19, 2024
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USBD peripheral automatically handles Set Address command which can lead to state mismatch between USB stack and the host. Keep track of device address and issue fake Set Address commands on mismatch.
This fixes default vs addressed state mismatch that can occur due to sufficently high SETUP handling latency. The state mismatch was most commonly seen as SET CONFIGURATION failure when the enumeration happened during periods with increased latency.