From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 16BBA3161AD; Thu, 16 Jul 2026 14:11:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784211063; cv=none; b=pNbjhZA0kC/xqvyBAtgUR8rEVBNMyFyhe+at65ELFC1RhA2Z1tXv9ciSFpdI5d6ppacywmWlAnDHEA0fzLdt+emtU48q6yz9zQNpPvnYE+emOCtFwZRF5Kroh2gg8vL57Jg5U59RQMkA6rO1ow2KjuwC3uEk9PB8J5gGeYiBMdk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784211063; c=relaxed/simple; bh=/JSNMwjImhmyqnJH5SWLBZnj3FEMu13VpcwJ7KQCRVk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=OfGdZNjt4vEgFBZZpXmAEsrp1YWlbLVM3jEZLZYyGD8lAGpf41mitaqAHUBhQcCd9rmJ/70bUGo9NEORTgVdiKj0RKRR0amgdQxbsQB99NIYx3RFWms3Di2rRlsFAScDWPH5/9D70NTRZvYhxrGHEb1i5XCDe/9ELt9VhEScXkQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gtWQEZ27; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="gtWQEZ27" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A3B5B1F000E9; Thu, 16 Jul 2026 14:11:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784211062; bh=AWQwVfKZmXINIQz1Qn2tOv9sJMbOTkCc6bgTYR1l/Wg=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=gtWQEZ27L5aY7EfOxbyQAyKgyMjiO7hTQin5hz+OqwOZnCGfEUsoZN4WfsjcPf114 zFd+7Ywns7q2u5vs8szb+86EHJV3TGV1woOMo4zwYsgOTE1rE/iKaNL6137DIBU0bc aLaI9VME74YDkSI2jKjLcpFr2sJofS4gfoMW6ZkQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Rodrigo=20Lugathe=20da=20Concei=C3=A7=C3=A3o=20Alves?= , stable Subject: [PATCH 6.18 286/480] USB: core: add USB_QUIRK_NO_LPM for VIA Labs USB 2.0 hub Date: Thu, 16 Jul 2026 15:30:33 +0200 Message-ID: <20260716133051.012232353@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260716133044.672218725@linuxfoundation.org> References: <20260716133044.672218725@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Rodrigo Lugathe da Conceição Alves commit bd728c3d9b1cc0bb0fda6a7055c5c8b55d7477b2 upstream. The VIA Labs, Inc. USB 2.0 hub controller (2109:2817), found in a KVM switch, fails to enumerate high-power devices during cold boot and system restart. Applying the kernel parameter usbcore.quirks=2109:2817:k resolves the issue. Enumeration failure log: usb 1-1.2.3: device descriptor read/64, error -32 usb 1-1.2.3: Device not responding to setup address. usb 1-1.2.3: device not accepting address 11, error -71 usb 1-1.2-port3: unable to enumerate USB device Add USB_QUIRK_NO_LPM for this device. Signed-off-by: Rodrigo Lugathe da Conceição Alves Cc: stable Link: https://patch.msgid.link/20260603113626.395612-1-lugathe2@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/quirks.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -577,6 +577,9 @@ static const struct usb_device_id usb_qu /* VLI disk */ { USB_DEVICE(0x2109, 0x0711), .driver_info = USB_QUIRK_NO_LPM }, + /* VIA Labs, Inc. USB2.0 Hub */ + { USB_DEVICE(0x2109, 0x2817), .driver_info = USB_QUIRK_NO_LPM }, + /* Raydium Touchscreen */ { USB_DEVICE(0x2386, 0x3114), .driver_info = USB_QUIRK_NO_LPM },