[Bug 260161] usb enumeration stalls on a framework laptop

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 05 Dec 2021 15:53:03 UTC

--- Comment #5 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:


commit b25ba58adc04ca475df1e8125d2a16a07d68b49d
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2021-12-05 15:45:12 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2021-12-05 15:51:46 +0000

    ng_ubt: Avoid attaching to several newer Intel controllers

    Like other Intel controllers, these require firmware to be loaded, and
    generic ng_ubt attach causes them to lock up until a power cycle.
    However, their firmware interface for querying version info and loading
    operational firmware is different from that implemented by ng_ubt_intel
    and iwmbtfw, so they are not usable yet.  Just disable attach for now to
    avoid stalls during USB device enumeration.

    PR:             260161
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week

 sys/netgraph/bluetooth/drivers/ubt/ng_ubt.c | 7 +++++++
 1 file changed, 7 insertions(+)

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