uart_port_trylock_irqsave(9)

💅 uart_port_trylock_irqsave(9) — a Kernel API Manual moment

okay so bestie, welcome to the Kernel API Manual ✨ this one's all about uart_port_trylock_irqsave, and honestly? she's that girl who tries something risky and doesn't even stress about it 🎀

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🌸 NAME 🌸

uart_port_trylock_irqsave — try to lock the UART port, and save and disable interrupts, all in one lil move 💖

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✨ SYNOPSIS ✨

bool uart_port_trylock_irqsave (struct uart_port *up , unsigned long *flags );

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🦋 ARGUMENTS 🦋

• up — pointer to the UART port structure, aka the main character of this whole operation 👑
• flags — pointer to the storage where the interrupt flags get saved, so like… remember where we left them 🫶

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💀 RETURN 💀

true if the lock was actually acquired — slay, you got it 🔥

false otherwise — no lock for you, but like, no drama either, that's literally the whole point of a *try*lock 🙈

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🌈 SEE ALSO 🌈

the whole friend group, fr fr 💜:

Kernel file ./include/linux/serial_core.h struct uart_ops(9), uart_port_set_cons(9), uart_port_lock(9), uart_port_lock_irq(9), uart_port_lock_irqsave(9), uart_port_trylock(9), uart_port_unlock(9), uart_port_unlock_irq(9), uart_port_unlock_irqrestore(9), enum uart_pm_state(9), uart_xmit_advance(9), enum UART_TX_FLAGS(9), uart_port_tx_limited(9), uart_port_tx_limited_flags(9), uart_port_tx(9), uart_port_tx_flags(9)

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ngl bestie, if up or flags is wrong, that's on you — this page isn't out here making promises it can't keep 😭

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okay that's the whole page, mwah 💋 — it lives in ./include/linux, dated October 2026, and it's literally titled uart_port_trylock_irqsave(9) if you ever need to find her again 💅✨🌸