Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755088AbZFCIRR (ORCPT ); Wed, 3 Jun 2009 04:17:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755077AbZFCIRH (ORCPT ); Wed, 3 Jun 2009 04:17:07 -0400 Received: from smtp.gentoo.org ([140.211.166.183]:60772 "EHLO smtp.gentoo.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754915AbZFCIRF (ORCPT ); Wed, 3 Jun 2009 04:17:05 -0400 From: Mike Frysinger To: David Brownell Cc: linux-kernel@vger.kernel.org Subject: [PATCH] gpio sysfs: add a "toggle" value Date: Wed, 3 Jun 2009 04:16:59 -0400 Message-Id: <1244017019-28163-1-git-send-email-vapier@gentoo.org> X-Mailer: git-send-email 1.6.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 935 Lines: 31 Signed-off-by: Mike Frysinger --- drivers/gpio/gpiolib.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 51a8d41..7f79732 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -274,7 +274,12 @@ static ssize_t gpio_value_store(struct device *dev, else { long value; - status = strict_strtol(buf, 0, &value); + if (sysfs_streq(buf, "toggle")) { + value = !gpio_get_value_cansleep(gpio); + status = 0; + } else + status = strict_strtol(buf, 0, &value); + if (status == 0) { gpio_set_value_cansleep(gpio, value != 0); status = size; -- 1.6.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/