hidinput_calc_abs_res(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

okay so this is the hidinput_calc_abs_res(9) page from the Kernel API Manual, and it's literally here to calculate an absolute axis resolution ✨.

✨ SYNOPSIS ✨

__s32 hidinput_calc_abs_res (const struct hid_field *field , __u16 code );

🎀 ARGUMENTS 🎀

  • field — the HID report field to calculate resolution for. that's the main character 🫶
  • code — axis code. short king, no notes 💅

🦋 DESCRIPTION 🦋

bestie, the formula is literally this:

(logical_maximum - logical_minimum) resolution =
----------------------------------------------------------
(physical_maximum - physical_minimum) * 10 ^ unit_exponent

as seen in the HID specification v1.11 6.2.2.7 Global Items. no cap, that's the source 📖✨

Only exponent 1 length units are processed. Centimeters and inches are converted to millimeters. Degrees are converted to radians. that's the whole vibe check 🌈

🌈 SEE ALSO 🌈

  • Kernel file ./drivers/hid/hid-input.c — go read it, iykyk 👑

mwah 💋 this page's source/version is ./drivers/hid, and the date on it is October 2026 — iconic, periodt. 🎀🦋

📦 where this page comes from