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 DEFA02DF132; Tue, 17 Mar 2026 16:45:21 +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=1773765921; cv=none; b=WjZg9iAs4JOpKl98QGkk1GURTcE65XyK/I+1rbPbwU7OeRH1QQnn2eXRjbrvNvQLc+KgfiStouqGTBN7U/yCFYxt2BLQcrjFWAGJyaRsAw/LTY3z45Phr8JlxW6gkCg3uDG4GkpAX3JYsBLniUSCPbQDaYwC+2DNgdoVJTOjeKE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773765921; c=relaxed/simple; bh=DIO67tpfSx2E5W9EBjcjsZym9e2iXO+2bBM/JFThLZQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bKO2/AJzV0uTcppC/n3R5qivKacM40CmgaF17scZuDG8izBy1gGtT1EHT3/QEQKVmKKtOI653u+JKFFq7H9PfZ2H84Qhd+w/C/trOqFGjsHHRgRDxYDyWzZXlzuyY0/OZ1jw7Tnjx+tVOeuuHzn5/d0CxPVOwkxovsMpc7LOW24= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=1bImQ/wm; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="1bImQ/wm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5019BC4CEF7; Tue, 17 Mar 2026 16:45:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1773765921; bh=DIO67tpfSx2E5W9EBjcjsZym9e2iXO+2bBM/JFThLZQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1bImQ/wmb41S4UyulGkJI46L1tQQ21LkonebTHoKqC/ewbUu+Muvsm4P6IQthlqT0 ktnk+64+HnzmIdtPN+tB3zUF7eQ3eDS3nSfseYGK8j32Fs2Tmy4XxsAoH6FdZRMDTe 5Ef6OocUsRPhfhRefoWRLom0HPUWoWUKp5+fN5yY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dave Penkler , stable , Johan Hovold Subject: [PATCH 6.19 125/378] gpib: lpvo_usb: fix unintended binding of FTDI 8U232AM devices Date: Tue, 17 Mar 2026 17:31:22 +0100 Message-ID: <20260317163011.613841642@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260317163006.959177102@linuxfoundation.org> References: <20260317163006.959177102@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johan Hovold commit 163cc462dea7d5b75be4db49ca78a2b99c55375e upstream. The LPVO USB GPIB adapter apparently uses an FTDI 8U232AM with the default PID, but this device id is already handled by the ftdi_sio serial driver. Stop binding to the default PID to avoid breaking existing setups with FTDI 8U232AM. Anyone using this driver should blacklist the ftdi_sio driver and add the device id manually through sysfs (e.g. using udev rules). Fixes: fce79512a96a ("staging: gpib: Add LPVO DIY USB GPIB driver") Fixes: e6ab504633e4 ("staging: gpib: Destage gpib") Cc: Dave Penkler Cc: stable Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260305151729.10501-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpib/lpvo_usb_gpib/lpvo_usb_gpib.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) --- a/drivers/gpib/lpvo_usb_gpib/lpvo_usb_gpib.c +++ b/drivers/gpib/lpvo_usb_gpib/lpvo_usb_gpib.c @@ -38,8 +38,10 @@ MODULE_DESCRIPTION("GPIB driver for LPVO /* * Table of devices that work with this driver. * - * Currently, only one device is known to be used in the - * lpvo_usb_gpib adapter (FTDI 0403:6001). + * Currently, only one device is known to be used in the lpvo_usb_gpib + * adapter (FTDI 0403:6001) but as this device id is already handled by the + * ftdi_sio USB serial driver the LPVO driver must not bind to it by default. + * * If your adapter uses a different chip, insert a line * in the following table with proper , . * @@ -50,7 +52,6 @@ MODULE_DESCRIPTION("GPIB driver for LPVO */ static const struct usb_device_id skel_table[] = { - { USB_DEVICE(0x0403, 0x6001) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, skel_table);