From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3AA64C43387 for ; Thu, 20 Dec 2018 09:06:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 11E092176F for ; Thu, 20 Dec 2018 09:06:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728956AbeLTJGQ (ORCPT ); Thu, 20 Dec 2018 04:06:16 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:45805 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725775AbeLTJGP (ORCPT ); Thu, 20 Dec 2018 04:06:15 -0500 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 61ECA8097F; Thu, 20 Dec 2018 10:06:09 +0100 (CET) Date: Thu, 20 Dec 2018 10:06:12 +0100 From: Pavel Machek To: Dan Murphy Cc: jacek.anaszewski@gmail.com, linux-leds@vger.kernel.org, kernel list Subject: Re: [PATCH 2/2] leds: lp5024: Add the LP5024/18 RGB LED driver Message-ID: <20181220090612.GA21972@amd> References: <20181219162626.12297-3-dmurphy@ti.com> <20181219193455.GA21159@amd> <8740cfd6-a6b5-ad27-313b-984a9febf18a@ti.com> <20181219201047.GA23448@amd> <54f28115-0a7d-8e9c-3bec-6e91fb3981ec@gmail.com> <20181219220326.GA28244@amd> <20181219222737.GB30496@amd> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="W/nzBZO5zC0uMSeA" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --W/nzBZO5zC0uMSeA Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > > Anyway, if your 36 channels can be set independently, I believe you > > just want them to export as 36 LEDs. >=20 > I am not sure that is what the "customers" would want to have to set 36 d= ifferent nodes or even declare those 36 nodes. > That is 36 independent user space to kernel space calls that are very exp= ensive just to set a LED color and brightness. >=20 No, 36 independend calls to kernel space are not that expensive. Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --W/nzBZO5zC0uMSeA Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlwbW4QACgkQMOfwapXb+vIX5gCfbSoZAB6VrN4h8DnjYJr1VN0/ XJ0AoKGMJ00yzItHxFC4vtxppLvmclBq =G+17 -----END PGP SIGNATURE----- --W/nzBZO5zC0uMSeA--