diff --git a/include/linux/gpio.h b/include/linux/gpio.h
new file mode 100644
index 0000000..0515010
--- /dev/null
+++ b/include/linux/gpio.h
@@ -0,0 +1,167 @@
+#ifndef __LINUX_GPIO_H
+#define __LINUX_GPIO_H
+
+
+#define GPIOF_DIR_OUT	(0 << 0)
+#define GPIOF_DIR_IN	(1 << 0)
+
+#define GPIOF_INIT_LOW	(0 << 1)
+#define GPIOF_INIT_HIGH	(1 << 1)
+
+#define GPIOF_IN		(GPIOF_DIR_IN)
+#define GPIOF_OUT_INIT_LOW	(GPIOF_DIR_OUT | GPIOF_INIT_LOW)
+#define GPIOF_OUT_INIT_HIGH	(GPIOF_DIR_OUT | GPIOF_INIT_HIGH)
+
+#define GPIOF_OPEN_DRAIN	(1 << 2)
+
+#define GPIOF_OPEN_SOURCE	(1 << 3)
+
+struct gpio {
+	unsigned	gpio;
+	unsigned long	flags;
+	const char	*label;
+};
+
+#ifdef CONFIG_GENERIC_GPIO
+#include <asm/gpio.h>
+
+#else
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/bug.h>
+
+struct device;
+struct gpio_chip;
+
+static inline bool gpio_is_valid(int number)
+{
+	return false;
+}
+
+static inline int gpio_request(unsigned gpio, const char *label)
+{
+	return -ENOSYS;
+}
+
+static inline int gpio_request_one(unsigned gpio,
+					unsigned long flags, const char *label)
+{
+	return -ENOSYS;
+}
+
+static inline int gpio_request_array(const struct gpio *array, size_t num)
+{
+	return -ENOSYS;
+}
+
+static inline void gpio_free(unsigned gpio)
+{
+	might_sleep();
+
+	
+	WARN_ON(1);
+}
+
+static inline void gpio_free_array(const struct gpio *array, size_t num)
+{
+	might_sleep();
+
+	
+	WARN_ON(1);
+}
+
+static inline int gpio_direction_input(unsigned gpio)
+{
+	return -ENOSYS;
+}
+
+static inline int gpio_direction_output(unsigned gpio, int value)
+{
+	return -ENOSYS;
+}
+
+static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
+{
+	return -ENOSYS;
+}
+
+static inline int gpio_get_value(unsigned gpio)
+{
+	
+	WARN_ON(1);
+	return 0;
+}
+
+static inline void gpio_set_value(unsigned gpio, int value)
+{
+	
+	WARN_ON(1);
+}
+
+static inline int gpio_cansleep(unsigned gpio)
+{
+	
+	WARN_ON(1);
+	return 0;
+}
+
+static inline int gpio_get_value_cansleep(unsigned gpio)
+{
+	
+	WARN_ON(1);
+	return 0;
+}
+
+static inline void gpio_set_value_cansleep(unsigned gpio, int value)
+{
+	
+	WARN_ON(1);
+}
+
+static inline int gpio_export(unsigned gpio, bool direction_may_change)
+{
+	
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+static inline int gpio_export_link(struct device *dev, const char *name,
+				unsigned gpio)
+{
+	
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+static inline int gpio_sysfs_set_active_low(unsigned gpio, int value)
+{
+	
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+static inline void gpio_unexport(unsigned gpio)
+{
+	
+	WARN_ON(1);
+}
+
+static inline int gpio_to_irq(unsigned gpio)
+{
+	
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+	
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+#endif
+
+#endif