From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0E4743B6BF9 for ; Tue, 7 Apr 2026 13:18:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775567938; cv=none; b=AB0v6RwZfGq0+vwy8iaHr0i+TvE5/lHQzS0YSsQVxwldEO9uSyA1hbqF7Ouz5Y6EPmdueXhmZuxzrjVosA3OVMcaJ7ZgZSUty5Ltr7GR92YAsY5jnmjp4t6HieBMiCrR+UqtZLIf8paI9Ld1ZnmcHaN+40R4bvEWPG/5iNAa31k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775567938; c=relaxed/simple; bh=/4DkTil4mGTnZH6ybTmJxsKtNcPFih1HDIzv88qeyWM=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=FHSS6cLglqitDed5PbGyVPwJm0Ld+cI/DaVKmDwGrxnK9TcDqWl+HKCp5q1y8pqBKXorvZ+t8VFFQ7ml/KBrjNDpxqrb1QdGhPxgVk6F5K2xDTfovEyaeR4fB+QsaFVuJHLNnFomdsvq/tndsd3e7vYV4GO4mCVIEur0wAY3egA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OYKmKGJ1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="OYKmKGJ1" Received: by smtp.kernel.org (Postfix) with ESMTPS id 88135C2BCB0 for ; Tue, 7 Apr 2026 13:18:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775567937; bh=/4DkTil4mGTnZH6ybTmJxsKtNcPFih1HDIzv88qeyWM=; h=From:To:Subject:Date:In-Reply-To:References:From; b=OYKmKGJ1muEpy8pvMQEYMa/xAbz0HlOw44XAiJPP0Gaxok9ZM629z/C392vkYZBL+ 7QAOlQwYg/2R8EhvsJtI8DfbQKtk/YmV6M9mKqRODFXnI5tq2VNO4hnevAgS2X42go xYdfmZLyA1wE6SubkJTckEBggl8D/cckRIfF2l901k81Sudi+O5BGy0k2QTCYK+6OU SpIWf6soM9kzPFlcxoUgqf7IFKuMK1eUcjPKN2j7CaHDe4Dz3+mcDsE/hlNjZ+W8bc qrEhB/qKPqhU9c2iNwoZkDlbv/fw3n0kgN5N3xhXpp5Q1xviSftR9QmETuBqtCQ6Li g3FytHpipwduQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 7BDFBC41613; Tue, 7 Apr 2026 13:18:57 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 221318] mice behind ASMedia ASM1042A via Thunderbolt 2 never produce input, most likely due to interrupt pipe idle window during enumeration Date: Tue, 07 Apr 2026 13:18:57 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: high X-Bugzilla-Who: manauer.uel@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D221318 --- Comment #20 from manauer.uel@gmail.com --- > The "spurious event" noise is likely from SuperSpeed device 4-1.1.2 whose > Bulk IN URBs may trigger it even on properly working hardware. Good to know. I looked up 4-1.1.2, it turned out to be the Ethernet adapter from the USB dongle. > I see nothing obviously wrong here, it looks like some weird HW problem. The sequence looks correct on paper, the cancellation goes through cleanly = and the endpoint is left in running state with the dequeue pointer advanced past the old URB. Yet no new transfer ever arrives. > BTW, I see that the endpoint of interest has 1ms interval too, longer > interval is on the second endpoint of this mouse. Yes, that matches the lsusb output. > If you would like to play with intervals, see drivers/usb/host/xhci-mem.c > function xhci_parse_frame_interval(). Replace ep->desc.bInterval with any > number like 1 or 10, units are milliseconds. I built and tested two patched kernels. Forcing 10ms: the mouse works without any workaround at all. Forcing 1ms: the mouse does not work. The udev workaround still fixes it. So the interval does matter. With 10ms the problem does not occur in the fi= rst place, with 1ms it behaves the same as on the stock kernel. One thing that does not fit this pattern: the Logitech Lightspeed Receiver (046d:c539) has 3 interfaces all polling at 1ms, yet it works on its own without any workaround. It also makes wired mice work alongside it on the s= tock kernel. I looked into this a bit. The receiver is not handled by usbhid but by the logitech-djreceiver driver (hid-logitech-dj). That driver has its own hid_ll_driver with open and close callbacks that are essentially empty. When udev opens and closes the hidraw device, nothing happens at the USB level, = so no URB is cancelled. This might be why the ASM1042A never gets into the bro= ken state. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=