GPIO_RECONFIGURE_INTERRUPTS_PARAMETERS structure (gpioclx.h)

The GPIO_RECONFIGURE_INTERRUPTS_PARAMETERS structure describes the general-purpose I/O (GPIO) interrupt pin to reconfigure.

Syntax

typedef struct _GPIO_RECONFIGURE_INTERRUPTS_PARAMETERS {
  BANK_ID                          BankId;
  PIN_NUMBER                       PinNumber;
  KINTERRUPT_MODE                  InterruptMode;
  KINTERRUPT_POLARITY              Polarity;
  GPIO_RECONFIGURE_INTERRUPT_FLAGS Flags;
} GPIO_RECONFIGURE_INTERRUPTS_PARAMETERS, *PGPIO_RECONFIGURE_INTERRUPTS_PARAMETERS;

Members

BankId

The identifier for the bank of GPIO pins that contains the interrupt pin to reconfigure. If N is the number of banks in the GPIO controller, BankId is an integer in the range 0 to N–1. The GPIO framework extension (GpioClx) previously obtained the number of banks in the controller from the CLIENT_QueryControllerBasicInformation event callback function. For more information, see Remarks in CLIENT_CONTROLLER_BASIC_INFORMATION.

PinNumber

The bank-relative pin number. If N is the number of pins in this bank, PinNumber is an integer in the range 0 to N–1. GpioClx previously obtained the number of pins in each bank from the CLIENT_QueryControllerBasicInformation event callback function. For more information, see the description of the NumberOfPinsPerBank member in CLIENT_CONTROLLER_BASIC_INFORMATION.

InterruptMode

Indicates whether to configure the GPIO interrupt pin to be level-sensitive or edge-triggered (latched). This member is set to one of the following values:

• LevelSensitive
• Latched

Polarity

Indicates the polarity of the reconfigured GPIO interrupt pin. For a level-sensitive interrupt, this member indicates whether the interrupt is active-high or active-low. For an edge-triggered interrupt, this member indicates whether the interrupt is triggered on the rising edge, on the falling edge, or on both edges. This member is set to one of the following values:

• InterruptActiveHigh
• InterruptRisingEdge
• InterruptActiveLow
• InterruptFallingEdge
• InterruptActiveBoth

Flags

A set of flags to control the interrupt-reconfiguration operation. No flags are currently defined for this operation.

Remarks

The ReconfigureParameters parameter of the CLIENT_ReconfigureInterrupt event callback function is a pointer to a caller-allocated GPIO_RECONFIGURE_INTERRUPTS_PARAMETERS structure.

Requirements

See also

CLIENT_CONTROLLER_BASIC_INFORMATION

CLIENT_QueryControllerBasicInformation

CLIENT_ReconfigureInterrupt

KINTERRUPT_MODE

KINTERRUPT_POLARITY