[Bug 222000] USB: xhci_hcd: Goodix USB Fingerprint sensor keep resetting

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=222000

rppxj178543@163.com (rppxj178543@163.com) changed:

           What    |Removed                     |Added
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                 CC|                            |rppxj178543@163.com

--- Comment #1 from rppxj178543@163.com (rppxj178543@163.com) ---
The repeated "reset full-speed USB device" messages likely come from
usb_reset_device() in drivers/usb/core/hub.c. The device 27c6:6090 has no entry
in the USB quirk table (drivers/usb/core/quirks.c), and autosuspend is enabled
by default with a 2-second delay — the sensor autosuspends frequently and may
fail to resume cleanly, triggering a reset-resume fallback.

Could you test this kernel boot parameter (no rebuild needed)：

usbcore.quirks=27c6:6090:kr

k = disable LPM, r = force reset-resume. If this stops the resets, the fix is
to add the device to usb_quirk_list[] in drivers/usb/core/quirks.c:

{ USB_DEVICE(0x27c6, 0x6090), .driver_info = USB_QUIRK_NO_LPM |
        USB_QUIRK_RESET_RESUME },
Also note: disabling power/control on the device alone via udev is insufficient
— the parent hub's autosuspend can still affect it.
It would also help to know whether the resets happen during idle or only during
authentication — that would distinguish autosuspend issues from a device
firmware problem.

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