Removes an interrupt handler.
#include <sys/types.h>
#include <sys/errno.h>
#include <sys/intr.h>void i_clear ( handler)
struct intr *handler;
| Item | Description |
|---|---|
| handler | Specifies the address of the interrupt handler structure passed to the i_init service. |
The i_clear service removes the interrupt handler specified by the handler parameter from the set of interrupt handlers that the kernel knows about. "Coding an Interrupt Handler" in AIX® Version 7.1 Kernel Extensions and Device Support Programming Concepts contains a brief description of interrupt handlers.
The i_mask service is called by the i_clear service to disable the interrupt handler's bus interrupt level when this is the last interrupt handler for the bus interrupt level. The i_clear service removes the interrupt handler structure from the list of interrupt handlers. The kernel maintains this list for that bus interrupt level.
The i_clear kernel service can be called from the process environment only.
The i_clear service has no return values.