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GPIO_QUERY_ACTIVE_INTERRUPTS_PARAMETERS structure (gpioclx.h)

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The GPIO_QUERY_ACTIVE_INTERRUPTS_PARAMETERS structure describes a set of general-purpose I/O (GPIO) interrupt pins to query for their enabled and active states.

Syntax

typedef struct _GPIO_QUERY_ACTIVE_INTERRUPTS_PARAMETERS {
  BANK_ID BankId;
  ULONG64 EnabledMask;
  ULONG64 ActiveMask;
} GPIO_QUERY_ACTIVE_INTERRUPTS_PARAMETERS, *PGPIO_QUERY_ACTIVE_INTERRUPTS_PARAMETERS;

Members

BankId

The identifier for the bank of GPIO pins that contains the interrupts to query. 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.

EnabledMask

A ULONG64 variable to which the GPIO controller driver writes a 64-bit mask to indicate which interrupt pins are enabled in the specified bank. A bit in the mask that is set to 1 identifies a pin that is configured as an interrupt and that is enabled. All other bits in the mask are 0. If N is the number of pins in this bank, the pins are numbered 0 to N–1. Bit 0 (the least significant bit) in the mask represents pin 0, bit 1 represents pin 1, and so on.

ActiveMask

A ULONG64 variable to which the GPIO controller driver writes a 64-bit mask to indicate which interrupt pins are active in the specified bank. A bit in the mask that is set to 1 identifies a pin that is configured as an interrupt and that is active. All other bits in the mask are 0.

Remarks

The QueryActiveParameters parameter of the CLIENT_QueryActiveInterrupts event callback function is a pointer to a caller-allocated GPIO_QUERY_ACTIVE_INTERRUPTS_PARAMETERS structure. This function queries only GPIO pins that are configured as interrupt inputs. All other GPIO pins in the specified bank are represented as zeros in the EnabledMask and ActiveMask members of the structure.

Requirements

Requirement Value
Minimum supported client Supported starting with Windows 8.
Header gpioclx.h

See also

CLIENT_CONTROLLER_BASIC_INFORMATION

CLIENT_QueryActiveInterrupts

CLIENT_QueryControllerBasicInformation