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 E839157333 for ; Thu, 2 May 2024 10:18:00 +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=1714645081; cv=none; b=qbanUWAxkPDU4yCGP4X7NbuLsElodr54/vlgN1klDzchVosjD4QgQhu0k+zbv5WJLjeof4EZJX3x4+VdCsQkAb0i8zEL8VsoXOzEVjWXs1e+Z4igAp+Tf4//VNgdzF8BroI9OjHjHCW34kl9QfGF2dmvTmZY8OiLh5cVuJ090GE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714645081; c=relaxed/simple; bh=1Gd23BdA3RdIjmLEjz8DyCeYANR+YdiuH/txi69SYtU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=EjW1G6DqBkGsJP3xi+IZN7eNvupZ8yTonFaw1saklzM2bJCPLz7JK4PJR26Ek8NnNY6cGGajMtLwKEqjgaqb1RiXXFzYQTxONJTY78XNTRKIb6g2ii7VV7lcFDksamq/DBxx6fDzjSvB5jAE/6Tn/O/odGvm7s8tA72j4tyELAI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kZ0ZGgge; 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="kZ0ZGgge" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4EDAFC113CC; Thu, 2 May 2024 10:18:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1714645080; bh=1Gd23BdA3RdIjmLEjz8DyCeYANR+YdiuH/txi69SYtU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=kZ0ZGgge7jI4Em+swL7frNimNxclxNx1U/WOJJdBldtalci+Cw08ZOYFEorcLfI/l ovlstcXVFwoJn8BRoU4NPyaQ6V79pGDlMCY0A6dPTulP/LqdxPS0U+n7syBf1WVDH2 o1WWjCsojylvvYe49xg7IgwuvaMp9/WOkaNXkmKmHqN2ALA9mrtGAt/AZVh3DT4v/q JIOM8tgz09of4bPzAWhHuD+VcM6HILrh7f4AMZ2ziycv7zYDWEuqg00Nx+KjkxzRWd mH2sT9gp9DpTSyAwJi2GXq85luFaryDUqiG1YxShD62crc5Sp5i7dU/a9zjwJwbYsV /uSkNQDvXhORw== Received: from johan by xi.lan with local (Exim 4.97.1) (envelope-from ) id 1s2TVq-0000000032Q-2wiN; Thu, 02 May 2024 12:18:03 +0200 Date: Thu, 2 May 2024 12:18:02 +0200 From: Johan Hovold To: Mans Rullgard Cc: Greg Kroah-Hartman , linux-usb@vger.kernel.org Subject: Re: [PATCH] USB: serial: use tty_port_register_device_serdev Message-ID: References: <20240502100728.7914-1-mans@mansr.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240502100728.7914-1-mans@mansr.com> On Thu, May 02, 2024 at 11:07:28AM +0100, Mans Rullgard wrote: > Use tty_port_register_device_serdev() so that usb-serial devices > can be used as serdev controllers. I'm afraid it's not that easy. The reason serdev is not enabled for usb-serial is that there's currently no support for handling hotplug in serdev. The device can go away from under you at any time and then you'd crash the kernel. Johan