STRUCT SYSTEM_DEVICE_CROSSTSTAMP(9)

💖 NAME 💖

okay so welcome to the struct syste..._crosststamp(9) page from the Kernel API Manual, bestie — aka the full struct system_device_crosststamp ✨

This one is the system/device cross-timestamp (synchronized capture) vibe. Iconic, honestly 🎀

🌈 SYNOPSIS 🌈

       struct system_device_crosststamp {
           clockid_t clock_id;
           ktime_t device;
           struct system_counterval_t      sys_counter;
           ktime_t sys_systime;
           ktime_t sys_monoraw;
        };

🫶 Members 🫶

• clock_id — System time Clock ID to capture 💅
• device — Device time 🕰️
• sys_counter — Clocksource counter value simultaneous with device time 🧚
• sys_systime — System time for clock_id 🌸
• sys_monoraw — Monotonic raw simultaneous with device time ⭐

💜 Description 💜

So sys_monoraw is CLOCK_MONOTONIC_RAW for system time CLOCK ids. For CLOCK_AUX$N clock ids it’s the monotonic raw time related to the AUX clock, which is CLOCK_MONOTONIC_RAW plus a AUX clock specific offset 🦋

⭐ SEE ALSO ⭐

the kernel file ./include/linux/timekeeping.h is right there, and the SEE ALSO besties are:

• ktime_get_real(9)
• ktime_get_boottime(9)
• ktime_get_clocktai(9)
• ktime_mono_to_real(9)
• ktime_get_ns(9)
• ktime_get_real_ns(9)
• ktime_get_boottime_ns(9)
• ktime_get_clocktai_ns(9)
• ktime_get_raw_ns(9)
• struct system_time_snapshot(9)
• struct system_counterval_t(9)

okay that’s the whole page, bestie 💖 source/version: ./include/linux; date: October 2026; footer page tag: struct syste..._crosststamp(9) — mwah, slay, bye 👑