linux-kernel - Re: [PATCH] usb: add QUIRK_NO

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Message-ID: <CACy+XB-f-51xGpNQFCSm5pE_momTQLu=BaZggHYU1DiDmFX=ug@mail.gmail.com>
Date: Wed, 4 Feb 2026 14:51:35 -0500
From: A1RM4X <dev@...m4x.com>
To: Greg KH <gregkh@...uxfoundation.org>
Cc: A1RM4X <dev@...m4x.com>, linux-usb@...r.kernel.org, limiao@...inos.cn, 
 oneukum@...e.com, huanglei@...inos.cn, lijiayi@...inos.cn, 
 johannes.bruederl@...il.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: add QUIRK_NO_BOS for several devices

I added a clean patch to this email.

I own the devices mentioned in the patch. For all 3 devices, the USB
port speed (10Gbps) is reached on Windows, they just negotiate 5Gbps
speed on Linux. After applying the patch, as mentioned earlier, they
reach the correct speed. I just did a 3 hours record on the Avermedia
on Linux and it works as expected with a patched kernel.

Here is an updated dmesg output after following your instructions on
the current kernel master:

[  701.425991] usb 2-2: new SuperSpeed Plus Gen 2x1 USB device number
2 using xhci_hcd
[  706.735379] usb 2-2: unable to get BOS descriptor or descriptor too short
[  706.735390] usb 2-2: unable to read config index 0 descriptor/start: -19
[  706.920395] usb 2-2: Device not responding to setup address.
[  707.127380] usb 2-2: Device not responding to setup address.
[  707.335050] usb 2-2: device not accepting address 3, error -71
[  707.338647] usb usb2-port2: attempt power cycle
[  708.656278] usb 2-2: new SuperSpeed USB device number 5 using xhci_hcd
[  708.859889] usb 2-2: LPM exit latency is zeroed, disabling LPM.
[  708.955893] usb 2-2: New USB device found, idVendor=2b89,
idProduct=5871, bcdDevice= 0.00
[  708.955895] usb 2-2: New USB device strings: Mfr=6, Product=7, SerialNumber=3
[  708.955896] usb 2-2: Product: UGREEN 35871
[  708.955897] usb 2-2: Manufacturer: UGREEN 35871
[  708.955897] usb 2-2: SerialNumber: PRODUCT
[  709.142354] hid-generic 0003:2B89:5871.0007: hiddev99,hidraw6: USB
HID v1.11 Device [UGREEN 35871 UGREEN 35871] on
usb-0000:0b:00.0-2/input4
[  709.165518] videodev: Linux video capture interface: v2.00
[  709.187290] uvcvideo 2-2:1.1: Unknown video format
30313050-0000-0010-8000-00aa00389b71
[  709.187297] uvcvideo 2-2:1.0: Found UVC 1.00 device UGREEN 35871 (2b89:5871)
[  709.224374] usbcore: registered new interface driver uvcvideo

Regarding the Signed‑off‑by line, if I can't sign it with my content
creator name, please sign it yourself. Whether I put my name on this
patch is not important, what is important is the kernel to function
properly with those devices.

Thanks again for helping,
A1RM4X

On Wed, Feb 4, 2026 at 9:38 AM Greg KH <gregkh@...uxfoundation.org> wrote:
>
> On Wed, Feb 04, 2026 at 09:25:18AM -0500, A1RM4X wrote:
> > Hi,
> >
> > Please find attached the new patch which fixes the structure of the commit.
>
> Also, you sent a patch on top of your previous patch which was not
> accepted, and so this wouldn't even apply to our trees at all :(
>
> Please always make a "clean" patch.
>
> thanks,
>
> greg k-h
>

View attachment "0001-USB-add-QUIRK_NO_BOS-for-several-devices.patch" of type "text/x-patch" (2336 bytes)