hwspin_lock_...est_specific(9)

hwspin_lock_...est_specific(9) 🎀

okay bestie, you're in the Kernel API Manual and this page is all about hwspin_lock_...est_specific(9) — yes, the title is a little chopped, that's just how it's printed, no cap. It's giving “reserve me one very specific hwspinlock” energy. 💅

NAME 🌸

hwspin_lock_request_specific — request for a specific hwspinlock

SYNOPSIS ✨

struct hwspinlock * hwspin_lock_request_specific (unsigned int id );

ARGUMENTS 🦋

• id — index of the specific hwspinlock that is requested

DESCRIPTION 💖

This function should be called by users of the hwspinlock module, in order to assign them a specific hwspinlock. Usually early board code will be calling this function in order to reserve specific hwspinlock ids for predefined purposes.

Should be called from a process context (might sleep). So yeah, process context bestie — it might sleep 😴.

RETURN 🔥

the address of the assigned hwspinlock, or NULL on error

SEE ALSO 👑

Kernel file ./drivers/hwspinlock/hwspinlock_core.c

• __hwspin_trylock(9)
• __hwspin_lock_timeout(9)
• __hwspin_unlock(9)
• hwspin_lock_bust(9)
• of_hwspin_lock_simple_xlate(9)
• of_hwspin_lock_get_id(9)
• of_hwspin_lock_get_id_byname(9)
• hwspin_lock_register(9)
• hwspin_lock_unregister(9)
• devm_hwspin_lock_unregister(9)
• devm_hwspin_lock_register(9)
• __hwspin_lock_request(9)
• hwspin_lock_free(9)
• devm_hwspin_lock_free(9)
• devm_hwspin_lock_request_specific(9)

okay that's the tea 🫖 — from ./drivers/hwspinlock, Kernel API Manual, October 2026, hwspin_lock_...est_specific(9) out 💅