| =================================== | 
 | General Purpose Input/Output (GPIO) | 
 | =================================== | 
 |  | 
 | Contents: | 
 |  | 
 | .. toctree:: | 
 |    :maxdepth: 2 | 
 |  | 
 |    intro | 
 |    driver | 
 |    consumer | 
 |    board | 
 |    drivers-on-gpio | 
 |    legacy | 
 |  | 
 | Core | 
 | ==== | 
 |  | 
 | .. kernel-doc:: include/linux/gpio/driver.h | 
 |    :internal: | 
 |  | 
 | .. kernel-doc:: drivers/gpio/gpiolib.c | 
 |    :export: | 
 |  | 
 | ACPI support | 
 | ============ | 
 |  | 
 | .. kernel-doc:: drivers/gpio/gpiolib-acpi.c | 
 |    :export: | 
 |  | 
 | Device tree support | 
 | =================== | 
 |  | 
 | .. kernel-doc:: drivers/gpio/gpiolib-of.c | 
 |    :export: | 
 |  | 
 | Device-managed API | 
 | ================== | 
 |  | 
 | .. kernel-doc:: drivers/gpio/devres.c | 
 |    :export: | 
 |  | 
 | sysfs helpers | 
 | ============= | 
 |  | 
 | .. kernel-doc:: drivers/gpio/gpiolib-sysfs.c | 
 |    :export: |