From: sashiko-bot@kernel.org
To: "Weiqin Zhu" <zwq939681378@gmail.com>
Cc: linux-usb@vger.kernel.org
Subject: Re: [PATCH v2] usb: core: quirks: Skip device qualifier for BEITONG BTP-PG01A
Date: Mon, 26 Oct 2026 15:13:23 +0000 [thread overview]
Message-ID: <sashiko-outbox-185425@kernel.org> (raw)
In-Reply-To: <20261026151003.16869-1-zwq939681378@gmail.com>
> The BEITONG BTP-PG01A wireless controller dongle initially enumerates as
> 4131:800c. Device qualifier requests fail with -EPIPE, followed by
> failures to read the configuration descriptor. After port recovery,
> the dongle can enumerate as 045e:028e with only two interfaces, leaving
> the vendor configuration software unusable in a Windows guest.
>
> Add USB_QUIRK_DEVICE_QUALIFIER for 4131:800c to skip device qualifier
> requests. The dongle then enumerates as 20bc:5162 with five interfaces,
> including three HID interfaces, and the vendor software works through
> USB passthrough to a Windows VM.
>
> Tested both usbcore.quirks=4131:800c:i and the built-in entry on an xHCI
> host. The patched kernel was tested without a dynamic usbcore.quirks
> entry. The configuration-request size quirk alone did not resolve the
> enumeration failure.
>
> Signed-off-by: Weiqin Zhu <zwq939681378@gmail.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261026151003.16869-1-zwq939681378@gmail.com?part=1
prev parent reply other threads:[~2026-10-26 15:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-26 15:10 [PATCH v2] usb: core: quirks: Skip device qualifier for BEITONG BTP-PG01A Weiqin Zhu
2026-10-26 15:13 ` sashiko-bot [this message]
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