Security researchers have discovered four critical vulnerabilities in the firmware of hundreds of Gigabyte motherboards that ...

The UEFI firmware in more than 240 GIGABYTE motherboards carries four high‑severity vulnerabilities (CVE‑2025‑7026 through ...

One, called the, Interrupt Handler Migration (IHM), allows the interrupt handler to be migrated from the interrupt handler thread to the corresponding target process so that additional context switch ...

This is why, for absolute best-of-class real-time performance, a deterministic single polling loop approach with fast interrupt handler routines for incoming events is by far the most deterministic.

___lib_start: call ___lib_setup_c; /* Setup C runtime model */ jump _main; /* Begin C program */ ___lib_prog_term: pm(__done_execution)=PC; idle; jump ___lib_prog ...

The interrupt handler is completely automated as it waits for the interrupt event. After receiving interrupt, it executes ISR and clears the status registers after few cycles. The immediate clearing ...

But, for drivers which can be implemented with I/O memory access and simple interrupt handlers, the necessary pieces are in place. The patch set includes an example driver to show how it all works.

Using interrupts means that your main loop gets to do other things, ... and the time-critical GPIO wiggling from inside the interrupt handler code.

Just as you can often treat device registers as a memory-mapped struct, you can treat an interrupt vector as a memory-mapped array. In my last column, I suggested that you use casts sparingly and with ...