Registers and releases, respectively, a callback handler for an IRQ line. The registration can be exclusive or Shared.
举例来说,如果你想要分配IRQ第二个以太网络转接器,运行下列的指令
For example, to bind processing of IRQ number 177 to CPUs 4 through 7 (bitmask 11110000), issue.
The IRQ column indicates the number of interrupts that occurred while that process was running.