Interrupt Handling

Understands interrupt mechanism: vector table, priorities, ISR. Writes simple interrupt handlers for timers and GPIO, understands interrupt context vs thread context.

Independently designs interrupt handling systems: top-half/bottom-half, tasklet/workqueue, threaded IRQ. Configures interrupt affinity, minimizes handling latency.

Designs complex interrupt subsystems: implements interrupt coalescing, MSI/MSI-X for PCIe, nested interrupt controllers. Optimizes interrupt storm protection and load balancing.

Defines interrupt handling strategy for the platform. Establishes interrupt latency budget guidelines, conducts ISR code reviews for correctness and performance.

Shapes enterprise approach to interrupt architecture. Defines real-time interrupt processing standards for safety-critical systems, mentors leads on interrupt subsystem design.