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New: ezcap401 needs USB_QUIRK_NO_BOS to function on 10gbs usb speed

Bug 221216 [email protected] 3 participants 7 messages Mar 12 USB

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#0 lore raw

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: [email protected]
          Reporter: [email protected]
        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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#1 lore raw
Quoted 3 lines · On Thu, Mar 12, 2026 at 05:15:47PM +0000, [email protected] 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

#2 lore raw

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

In reply to [email protected]

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

--- Comment #1 from [email protected] ---

Quoted 4 lines · On Thu, Mar 12, 2026 at 05:15:47PM +0000, [email protected] 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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#3 lore raw

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

In reply to [email protected]

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

--- Comment #2 from Vyacheslav ([email protected]) ---
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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#4 lore raw

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

In reply to [email protected]

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

--- Comment #3 from Vyacheslav ([email protected]) --- Created attachment 309633
--> https://bugzilla.kernel.org/attachment.cgi?id=309633&action=edit
edited file

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#5 lore raw

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

Quoted 6 lines · On Thu, Mar 12, 2026 at 05:36:27PM +0000, [email protected] wrote:

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

--- Comment #3 from Vyacheslav ([email protected]) --- Created attachment 309633
--> https://bugzilla.kernel.org/attachment.cgi?id=309633&action=edit
edited file

Can you send this to the [email protected] list? We can't take patches from bugzilla directly :(

thanks,

greg k-h

#6 lore raw

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

In reply to [email protected]

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

--- Comment #4 from Greg Kroah-Hartman ([email protected]) ---

Quoted 6 lines · On Thu, Mar 12, 2026 at 05:36:27PM +0000, [email protected] wrote:

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

--- Comment #3 from Vyacheslav ([email protected]) --- Created attachment 309633
--> https://bugzilla.kernel.org/attachment.cgi?id=309633&action=edit
edited file

Can you send this to the [email protected] list? We can't take patches from bugzilla directly :(

thanks,

greg k-h

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