usleep_range(9)

okay so bestie, welcome to usleep_range(9) from the Kernel API Manual — the sleep helper that’s lowkey all about an approximate nap time 💤✨ let’s get into it

✨ NAME ✨

usleep_range — Sleep for an approximate time. Like, it’s giving “nap, but make it approximate,” and honestly that’s the whole name 🫶

🛌 SYNOPSIS 🛌

void usleep_range (unsigned long min , unsigned long max );

🎀 ARGUMENTS 🎀

• min — Minimum time in microseconds to sleep. The floor, bestie 💅
• max — Maximum time in microseconds to sleep. The ceiling, no cap 🌸

💤 DESCRIPTION 💤

For basic information please refer to usleep_range_state — that’s the page to check first, fr fr.

While the task is sleeping, it will be in the state TASK_UNINTERRUPTIBLE.

heads up bestie: TASK_UNINTERRUPTIBLE is literally the state during the sleep. Not me adding drama — that’s the documented vibe 😭

🔗 SEE ALSO 🔗

• Kernel file ./include/linux/delay.h
• mdelay(9)
• usleep_range_idle(9)
• ssleep(9)
• fsleep(9)

that’s the whole page, bestie 💖 this lil cutie comes from source ./include/linux, page/version usleep_range(9), and it’s dated October 2026 — periodt 🎀✨