STRUCT COUNTER_WATCH(9)

💖 struct counter_watch(9): the counter watch config, bestie 💖

Okay so this page is struct counter_watch(9) from the Kernel API Manual, and it's literally the glow-up guide for a counter component watch configuration. Slay.

🎀 NAME 🎀

struct counter_watch — Counter component watch configuration. It's giving "tell me what to watch and what event should trigger it" energy, and honestly? Iconic.

✨ SYNOPSIS ✨

struct counter_watch {
    struct counter_component component;
    __u8 event;
    __u8 channel;
 };

💅 Members 💅

• component — the component to watch when the event triggers. Like, this is the main character you're keeping your eyes on 👀
• event — the event that triggers the watch. It's one of enum counter_event_type, no cap.
• channel — the event channel. Typically 0 unless the device supports concurrent events of the same type. So yeah, usually zero, but sometimes the device is extra 💅

🦋 SEE ALSO 🦋

• Kernel file ./include/uapi/linux/counter.h
• struct counter_component(9)
• struct counter_event(9)

Signed, sealed, delivered with source/version ./include/uapi/linux, dated October 2026 💌✨