PSD IRQ EOI

Issue an EOI.

This function is used to issue an End-Of-Interrupt.


 * Mode : Called in Kernel, and Interrupt mode.

Syntax
PSD_IRQ_EOI

Parameters

 * Entry : Pointer to PSD_IRQ structure.

ulong_t flags;   (Input) ulong_t data;    (Input/Output) ulong_t procnum; (Input)


 * data : is the interrupt level to end.
 * flags : is not used in this operation.
 * procnum : is the processor number of where the operation should take place.

Return Code

 * NO_ERROR : operation completed successfully.
 * -1 : operation failed.

Remarks

 * Optional: the function is not required.
 * The OS/2 kernel provides default handling for that specific function.
 * The function can not call a PSD help that may block.

Notes If this function is omitted, OS/2 will perform all EOI operations for an 8259 Master/Slave based PIC system. The requests will be sent to CPU0 depending on the state of the INIT_GLOBAL_IRQ_ACCESS flag.

Structure
 typedef struct psd_irq_s { ulong_t flags;   (Input) ulong_t data;    (Input/Output) ulong_t procnum; (Input) } PSD_IRQ; 