STRUCT HIDPP_SCROLL_COUNTER(9)

💖 struct hidpp_scroll_counter(9) 💖

okay so bestie, welcome to the Kernel API Manual — this is the page for struct hidpp_scroll_counter, and it is literally the utility class for processing high-resolution scroll events ✨ yeah. mouse girlies, this one's for u.

🌸 NAME 🌸

struct hidpp_scroll_counter — the utility class for processing high-resolution scroll events. that's it, that's the whole vibe 💅

🎀 SYNOPSIS 🎀

struct hidpp_scroll_counter {
    int wheel_multiplier;
    int remainder;
    int direction;
    unsigned long long last_time;
};

🦋 Members 🦋

like, let's meet the cast, no cap:

• wheel_multiplier — the scalar multiplier that gets applied to each wheel event. it's giving "how much do we scale this" energy 🔥
• remainder — counts the number of high-resolution units that have moved since the last low-resolution event (REL_WHEEL or REL_HWHEEL) was sent. 🫶 heads up though: it should only be used by class methods. not u. not your friend. only class methods, iykyk 🙈
• direction — direction of the last movement, and it's strictly 1 or -1. main character energy, no in-between 😌
• last_time — the last event time, used to reset remainder after inactivity. the "u good? u still scrolling?" timer fr fr ⭐

🌈 SEE ALSO 🌈

• Kernel file ./drivers/hid/hid-logitech-hidpp.c 👑
• hidpp_scroll_counter_handle_scroll(9)
• hidpp10_set_register(9)

ok that's the whole page bestie, go forth and scroll with high resolution 💖

and that's a wrap from ./drivers/hid, October 2026 — stay iconic, mwah 🎀💜