usb: truncate string descriptor response to match setup.wLength#67
Merged
rusefillc merged 1 commit intoJun 22, 2026
Conversation
Windows requests the first 2 bytes of a string descriptor to read its size before asking for the full string. This fix ensures the firmware truncates the response data to match wLength, preventing endpoint stalls and timeouts on strict hosts.
rusefillc
merged commit c43c9fb
into
rusefi:stable_21.11.x.rusefi_clean_history
1 check failed
Member
Author
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Windows requests the first 2 bytes of a string descriptor to read its size before asking for the full string. This fix ensures the firmware truncates the response data to match wLength, preventing endpoint stalls and timeouts on strict hosts.