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hid: Import keyboard driver (hkbd)
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Authored by wulf on Jan 6 2021, 12:54 AM.

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Summary

This imports hkbd(4) driver which is conversion of existing ukbd(4) to the HID subsystem.

Unlike ukbd which is running entirely under Giant, hkbd uses 2 locks - private mutex for interrupt handler/repeat callout and Giant for syscons interface. Lockless queue is used for passing of key-press events from mtx-protected code to Giant-protected one. Other differences are minor.

This revision is subset of https://reviews.freebsd.org/D27777

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R10 FreeBSD src repository
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Event Timeline

wulf requested review of this revision.Jan 6 2021, 12:54 AM
wulf created this revision.
This revision is now accepted and ready to land.Jan 7 2021, 12:57 PM