Differential D51605

hid: Add HQ_NO_READAHEAD quirk and implement it in usbhid(4)
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Authored by wulf on Jul 28 2025, 9:29 PM.

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emaste
manu
aokblast

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rG7699ec1558b7: hid: Add HQ_NO_READAHEAD quirk and implement it in usbhid(4)

Summary

It disables interrupt emulation on poll-driven buses like USB and
forces aquiring of only one USB frame per read(2) operation.
This avoids an FIDO/U2F issue where IN endpoint data received from
the device right before the file handle is closed, gets lost.

PR: 263995
MfC after: 1 week

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rG FreeBSD src repository

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Event Timeline

wulf created this revision.Jul 28 2025, 9:29 PM

Herald added a subscriber: imp. · View Herald TranscriptJul 28 2025, 9:29 PM

wulf requested review of this revision.Jul 28 2025, 9:29 PM

Harbormaster completed remote builds in B65816: Diff 159369.Jul 28 2025, 9:29 PM

wulf added a parent revision: D41639: Add u2f(4), a HID driver for FIDO/U2F security keys.Jul 28 2025, 9:29 PM

aokblast accepted this revision.Aug 8 2025, 8:07 AM

This revision is now accepted and ready to land.Aug 8 2025, 8:07 AM

Closed by commit rG7699ec1558b7: hid: Add HQ_NO_READAHEAD quirk and implement it in usbhid(4) (authored by wulf). · Explain WhyAug 17 2025, 9:03 PM

This revision was automatically updated to reflect the committed changes.

wulf added a commit: rG7699ec1558b7: hid: Add HQ_NO_READAHEAD quirk and implement it in usbhid(4).

Revision Contents
Changeset List

Path

Size

sys/

dev/

hid/

1 line

usb/

input/

4 lines

Diff 160512

sys/dev/hid/hidquirk.h

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sys/dev/usb/input/usbhid.c

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