adjust_by_scaled_ppm(9)

Welcome to the Kernel API Manual page for adjust_by_scaled_ppm(9), bestie! 💖 This is the little helper that does the base-increment glow-up using scaled parts per million, and we’re gonna read it together, no cap. ✨

✨ NAME ✨

adjust_by_scaled_ppm — Adjust a base increment by scaled parts per million. 🎀

🎀 SYNOPSIS 🎀

u64 adjust_by_scaled_ppm (u64 base , long scaled_ppm );

💅 ARGUMENTS 💅

• base — the base increment value to adjust. That’s the starting increment, bestie. 🫶
• scaled_ppm — the scaled parts per million frequency adjustment. Lowkey the whole frequency-adjustment vibe. ⭐

🌸 DESCRIPTION 🌸

Okay so this is a helper function. Its whole job is to calculate a new increment value based on the requested scaled parts per million adjustment. That’s it, that’s the tea. 🍓 It’s giving “small but useful kernel helper” energy, and honestly? Iconic. 💅

🦋 SEE ALSO 🦋

Kernel file ./include/linux/ptp_clock_kernel.h and all these linked besties:

• struct ptp_clock_request(9)
• struct ptp_system_timestamp(9)
• struct ptp_clock_info(9)
• struct ptp_clock_event(9)
• scaled_ppm_to_ppb(9)
• diff_by_scaled_ppm(9)
• ptp_clock_register(9)
• ptp_clock_unregister(9)
• ptp_clock_event(9)
• ptp_clock_index(9)
• ptp_clock_index_by_of_node(9)
• ptp_clock_index_by_dev(9)
• ptp_find_pin(9)
• ptp_find_pin_unlocked(9)
• ptp_schedule_worker(9)
• ptp_cancel_worker_sync(9)
• ptp_get_vclocks_index(9)
• ptp_convert_timestamp(9)

That’s the whole page, bestie! 🫶 It comes from ./include/linux and is dated October 2026, and it’s literally the adjust_by_scaled_ppm(9) page signing off. 💖✨