gpiolib: add support for changing value polarity in sysfs

[safe/jmp/linux-2.6] / include / asm-generic / gpio.h

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 204bed3..485eeb6 100644 (file)
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -145,6 +145,7 @@ extern int __gpio_to_irq(unsigned gpio);
 extern int gpio_export(unsigned gpio, bool direction_may_change);
 extern int gpio_export_link(struct device *dev, const char *name,
                        unsigned gpio);
+extern int gpio_sysfs_set_active_low(unsigned gpio, int value);
 extern void gpio_unexport(unsigned gpio);
 
 #endif /* CONFIG_GPIO_SYSFS */
@@ -197,6 +198,11 @@ static inline int gpio_export_link(struct device *dev, const char *name,
        return -ENOSYS;
 }
 
+static inline int gpio_sysfs_set_active_low(unsigned gpio, int value)
+{
+       return -ENOSYS;
+}
+
 static inline void gpio_unexport(unsigned gpio)
 {
 }