uart_port_lock_irqsave(9)

💅 uart_port_lock_irqsave(9) 💅

okay so bestie, welcome to the Kernel API Manual — yes we're literally in the kernel API manual together, and no I will not be normal about it 🫶

✨ NAME ✨

uart_port_lock_irqsave — locks the UART port, and like… saves and disables interrupts while it's at it 😭👑

🌸 SYNOPSIS 🌸

void uart_port_lock_irqsave (struct uart_port *up , unsigned long *flags
);

🎀 ARGUMENTS 🎀

• up — pointer to the UART port structure, aka the whole reason we're here 💖
• flags — pointer to where the interrupt flags get stored. yes bestie, you gotta give it somewhere to put them 🎀

🦋 SEE ALSO 🦋

the whole friend group fr fr, all from the kernel file ./include/linux/serial_core.h:

• struct uart_ops(9) — the main character of this particular section ngl
• uart_port_set_cons(9)
• uart_port_lock(9)
• uart_port_lock_irq(9)
• uart_port_trylock(9)
• uart_port_trylock_irqsave(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)

like… the whole lineup. ate and left no crumbs 💅✨

lowkey iconic of you to read all the way to the end 🌈 this page lives in ./include/linux and it was dated October 2026, so yeah, timestamped and everything 📅💜 mwah, go lock that port bestie 💖✨