From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754492Ab0JGS0O (ORCPT ); Thu, 7 Oct 2010 14:26:14 -0400 Received: from mail-fx0-f46.google.com ([209.85.161.46]:39104 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753005Ab0JGS0N (ORCPT ); Thu, 7 Oct 2010 14:26:13 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:x-enigmail-version:content-type :content-transfer-encoding; b=a+qPZsJ2lAIWVjJXQN2O/ei/QTlXAOlNbFq845H5fmaDlJkkp8OTa2NRdRvbMQ//tU zMiVYdVZq9eHVUz04dG2WD0MwXMIcENe30kJtM/c7DA+qqe127cuMj4qTvk3s208zRUj fyHvkmwZRcT0vhk8DGIGx7bIcD2Nqma6diHIU= Message-ID: <4CAE10C0.9000106@gmail.com> Date: Thu, 07 Oct 2010 20:26:08 +0200 From: Jiri Slaby User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; cs-CZ; rv:1.9.2.9) Gecko/20100914 SUSE/3.1.4 Thunderbird/3.1.4 MIME-Version: 1.0 To: "Savoy, Pavan" CC: "gregkh@suse.de" , "linux-kernel@vger.kernel.org" , "devel@driverdev.osuosl.org" , "alan@lxorguk.ukuu.org.uk" Subject: Re: [PATCH 1/2] drivers:staging:ti-st: move TI_ST from staging References: <1286381895-11329-1-git-send-email-pavan_savoy@ti.com> <1286381895-11329-2-git-send-email-pavan_savoy@ti.com> <4CACD234.7020900@gmail.com> <19F8576C6E063C45BE387C64729E739404AA21CEA1@dbde02.ent.ti.com> <4CACF5A7.3010601@gmail.com> <19F8576C6E063C45BE387C64729E739404AA21CEC6@dbde02.ent.ti.com> <4CAD7DAB.8030209@gmail.com> <19F8576C6E063C45BE387C64729E739404AA21D193@dbde02.ent.ti.com> In-Reply-To: <19F8576C6E063C45BE387C64729E739404AA21D193@dbde02.ent.ti.com> X-Enigmail-Version: 1.1.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/07/2010 04:52 PM, Savoy, Pavan wrote: > Per-system? I don't understand this. > There can be ldisc for each individual TTY, so doesn't that make it per device? No, you can have only up to NR_LDISCS ldiscs in the system and you have to choose one of them to "handle" a particular tty. IOW, you register an ldisc which is available for everybody then. And it cannot have ->private_data since everybody would share this single ->private_data. Instead everybody comes with their devices as ttys which have ->private_data for everybody's data and ->disc_data for you to note anything about the (tty) device. Am I missing something? regards, -- js