[Bug 221216] New: ezcap401 needs USB_QUIRK_NO_BOS to function on 10gbs usb speed

[Bug 221216] New: ezcap401 needs USB_QUIRK_NO_BOS to function on 10gbs usb speed

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=221216

            Bug ID: 221216
           Summary: ezcap401 needs USB_QUIRK_NO_BOS to function on 10gbs
                    usb speed
           Product: Drivers
           Version: 2.5
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: USB
          Assignee: drivers_usb@kernel-bugs.kernel.org
          Reporter: vahnenko2003@gmail.com
        Regression: No

Created attachment 309632
  --> https://bugzilla.kernel.org/attachment.cgi?id=309632&action=edit
dmesg and lsusb

Hello, my new capture card works only in 5gbs usb speed, with deepseek's help I
applied { USB_DEVICE(0x32ed, 0x0401), .driver_info = USB_QUIRK_NO_BOS }, to
drivers/usb/core/quirks.c quirk and now it's working at full speed.

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Re: [Bug 221216] New: ezcap401 needs USB_QUIRK_NO_BOS to function on 10gbs usb speed

[Greg KH]

On Thu, Mar 12, 2026 at 05:15:47PM +0000, bugzilla-daemon@kernel.org wrote:
> Hello, my new capture card works only in 5gbs usb speed, with deepseek's help I
> applied { USB_DEVICE(0x32ed, 0x0401), .driver_info = USB_QUIRK_NO_BOS }, to
> drivers/usb/core/quirks.c quirk and now it's working at full speed.

Can you send a patch that adds this entry to the kernel so that you get
this fixed properly?

thanks,

greg k-h

[Bug 221216] ezcap401 needs USB_QUIRK_NO_BOS to function on 10gbs usb speed

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=221216

--- Comment #1 from gregkh@linuxfoundation.org ---
On Thu, Mar 12, 2026 at 05:15:47PM +0000, bugzilla-daemon@kernel.org wrote:
> Hello, my new capture card works only in 5gbs usb speed, with deepseek's help
> I
> applied { USB_DEVICE(0x32ed, 0x0401), .driver_info = USB_QUIRK_NO_BOS }, to
> drivers/usb/core/quirks.c quirk and now it's working at full speed.

Can you send a patch that adds this entry to the kernel so that you get
this fixed properly?

thanks,

greg k-h

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[Bug 221216] ezcap401 needs USB_QUIRK_NO_BOS to function on 10gbs usb speed

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=221216

--- Comment #2 from Vyacheslav (vahnenko2003@gmail.com) ---
Sorry I did this kinda junky without actual git patch, I just edited file, I'll
attach it. Added 2 lines in 596 and 597

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[Bug 221216] ezcap401 needs USB_QUIRK_NO_BOS to function on 10gbs usb speed

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=221216

--- Comment #3 from Vyacheslav (vahnenko2003@gmail.com) ---
Created attachment 309633
  --> https://bugzilla.kernel.org/attachment.cgi?id=309633&action=edit
edited file

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Re: [Bug 221216] ezcap401 needs USB_QUIRK_NO_BOS to function on 10gbs usb speed

[Greg KH]

On Thu, Mar 12, 2026 at 05:36:27PM +0000, bugzilla-daemon@kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=221216
> 
> --- Comment #3 from Vyacheslav (vahnenko2003@gmail.com) ---
> Created attachment 309633
>   --> https://bugzilla.kernel.org/attachment.cgi?id=309633&action=edit
> edited file

Can you send this to the linux-usb@vger.kernel.org list?  We can't take
patches from bugzilla directly :(

thanks,

greg k-h

[Bug 221216] ezcap401 needs USB_QUIRK_NO_BOS to function on 10gbs usb speed

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=221216

--- Comment #4 from Greg Kroah-Hartman (greg@kroah.com) ---
On Thu, Mar 12, 2026 at 05:36:27PM +0000, bugzilla-daemon@kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=221216
> 
> --- Comment #3 from Vyacheslav (vahnenko2003@gmail.com) ---
> Created attachment 309633
>   --> https://bugzilla.kernel.org/attachment.cgi?id=309633&action=edit
> edited file

Can you send this to the linux-usb@vger.kernel.org list?  We can't take
patches from bugzilla directly :(

thanks,

greg k-h

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