From: Mike Frysinger <vapier@gentoo.org>
To: David Brownell <david-b@pacbell.net>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] gpio sysfs: add a "toggle" value
Date: Wed, 3 Jun 2009 04:16:59 -0400 [thread overview]
Message-ID: <1244017019-28163-1-git-send-email-vapier@gentoo.org> (raw)
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
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
next reply other threads:[~2009-06-03 8:17 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-03 8:16 Mike Frysinger [this message]
2009-06-04 7:54 ` Andrew Morton
2009-06-04 8:16 ` Mike Frysinger
2009-06-04 8:27 ` David Brownell
2009-06-04 8:52 ` Mike Frysinger
2009-06-04 9:05 ` Andrew Morton
2009-06-04 9:06 ` David Brownell
2009-06-04 9:09 ` Mike Frysinger
2009-06-04 9:15 ` David Brownell
2009-06-04 9:20 ` Mike Frysinger
2009-06-04 9:48 ` David Brownell
2009-06-04 10:06 ` Mike Frysinger
2009-06-04 8:36 ` Andrew Morton
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