From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Vasut Subject: Re: what is the meaning of matrix_keypad_platform_data.active_low Date: Tue, 25 Aug 2009 12:21:10 +0200 Message-ID: <200908251221.10797.marek.vasut@gmail.com> References: <4A93903F.3080005@gmail.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-fx0-f217.google.com ([209.85.220.217]:64514 "EHLO mail-fx0-f217.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754272AbZHYKVc convert rfc822-to-8bit (ORCPT ); Tue, 25 Aug 2009 06:21:32 -0400 In-Reply-To: <4A93903F.3080005@gmail.com> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Xiangfu Liu Cc: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org Dne =DAt 25. srpna 2009 09:18:23 Xiangfu Liu napsal(a): > Hi > ./include/linux/input/matrix_keypad.h > there no help in matrix_keypad.h about active_low. > > I guess. when set active_low to 1.means: > > 0: key press > 1: key not press > > right? Hi, yeah, it means the GPIO pins have inverted voltage levels. > > thanks for help. -- To unsubscribe from this list: send the line "unsubscribe linux-input" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html