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 9D3483A5E8B; Tue, 3 Mar 2026 17:08:37 +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=1772557717; cv=none; b=AAICmyXvSQ20k1lkwrn9XINVs30ClwHaVIVnXTDnc6NFvfNGQjPbpR3tfXp9PovWsSslfUQF4uFcyBCa5RMMMB53B3SUVRmiZJ+gmWu0o8CWT/QAs+/liNHl7hyC/G3tlVG/+KGJa0yK4j+brW/xrG5cBFfDMW6jJ/7yt8KI3tQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772557717; c=relaxed/simple; bh=85T4a9tDQeqQgooF6tLkpLk28kfophnD+5HJrDO7yL4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uF52vEvKnP9NuOA4aVinAAGoiD2ke2jyBefcK0huhQ7X9W8GfZBZ5lNYRL9Fh9+mjmSFqUDIidzxdeWNbphHz8NPMqyjDAl9bgaEAU4l0TQwIwCgEVnLZaPwwgnOtXTjCMArA5jHfGyOHAbkFAlevzjhO/NvEuM7GP8x+o4PyzU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bn7Ejcfv; 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="bn7Ejcfv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4121CC116C6; Tue, 3 Mar 2026 17:08:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772557717; bh=85T4a9tDQeqQgooF6tLkpLk28kfophnD+5HJrDO7yL4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bn7EjcfvRbg+Thd6vuxfhpPxFqqEEcwc382lrTPGG4QOEhN77ueGA/wkLWHXHipMr Pgf1mQp/IUc5oJR0HEWBSV5qmNjsTjpeJkFJXf2Ls0eJvGotkbjKaCYXpxv/OJUEs5 96sdGA3e1z0XAB5lSLpdAkpLWCCcOPTXIPUsPjAYH3mKVcSein0UPvppqUS/Qw4MYR U971430TKLY6+eI9I9BTjKuWiSiTh2y+cHhj9zWmU1d1E7amZyFh1qk4QDKwsMPG1D ckITIwpFSy03VlAuvl7jgrXxyFCSjTjLR1cCv/kTh2GrwUjM94/JRIyVrDgAnwKwtA /JqV98R/gUH4Q== Received: from johan by xi.lan with local (Exim 4.98.2) (envelope-from ) id 1vxTEZ-000000001CE-0JaU; Tue, 03 Mar 2026 18:08:35 +0100 From: Johan Hovold To: Dave Penkler Cc: Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Johan Hovold , stable@vger.kernel.org Subject: [PATCH 1/2] gpib: fix unintended binding of FTDI 8U232AM devices Date: Tue, 3 Mar 2026 18:07:21 +0100 Message-ID: <20260303170722.4516-2-johan@kernel.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260303170722.4516-1-johan@kernel.org> References: <20260303170722.4516-1-johan@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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@vger.kernel.org Signed-off-by: Johan Hovold --- drivers/gpib/lpvo_usb_gpib/lpvo_usb_gpib.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpib/lpvo_usb_gpib/lpvo_usb_gpib.c b/drivers/gpib/lpvo_usb_gpib/lpvo_usb_gpib.c index 6fc4e3452b88..ee781d2f0b8e 100644 --- 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 usb devices"); /* * 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 usb devices"); */ static const struct usb_device_id skel_table[] = { - { USB_DEVICE(0x0403, 0x6001) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, skel_table); -- 2.52.0