GPIO_PIN_IORESTRICTION_TYPE enumeration (pepfx.h)

The GPIO_PIN_IORESTRICTION_TYPE enumeration describes the functions that a GPIO pin is limited to performing.

Syntax

typedef enum _GPIO_PIN_IORESTRICTION_TYPE {
  IoRestrictionNone,
  IoRestrictionInputOnly,
  IoRestrictionOutputOnly,
  IoRestrictionNoneAndPreserve
} GPIO_PIN_IORESTRICTION_TYPE;

Constants

IoRestrictionNone Indicates that the GPIO pin is not restricted to either input or output. When no IO restriction is described, it is assumed to be IoRestrictionNone.
IoRestrictionInputOnly Indicates that the GPIO pin is restricted to input.
IoRestrictionOutputOnly Indicates that the GPIO pin is restricted to output.
IoRestrictionNoneAndPreserve Indicates that the GPIO pin is not restricted to either input or output and that the mode should be preserved when the driver is unloaded.

Requirements

Requirement	Value
Minimum supported client	Supported starting with Windows 10.
Header	pepfx.h (include Pep_x.h)