gpio: add a userspace chardev ABI for GPIOs

[mirror_ubuntu-artful-kernel.git] / drivers / gpio / gpiolib.h

diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
index 3f329c922f5bd62710095184e74fc8b94a52a777..1524ba0ca99dca53e6c3ff4c3e589591c93eb1ee 100644 (file)
--- a/drivers/gpio/gpiolib.h
+++ b/drivers/gpio/gpiolib.h
@@ -26,6 +26,7 @@ struct acpi_device;
  * struct gpio_device - internal state container for GPIO devices
  * @id: numerical ID number for the GPIO chip
  * @dev: the GPIO device struct
+ * @chrdev: character device for the GPIO device
  * @owner: helps prevent removal of modules exporting active GPIOs
  * @chip: pointer to the corresponding gpiochip, holding static
  * data for this device
@@ -39,6 +40,7 @@ struct acpi_device;
 struct gpio_device {
        int                     id;
        struct device           dev;
+       struct cdev             chrdev;
        struct module           *owner;
        struct gpio_chip        *chip;
        struct list_head        list;