uart_port_lock(9)

okay bestie, welcome to uart_port_lock(9) 💅 this little page lives in the Kernel API Manual, and it’s giving “one job, done cute.” No cap. ✨

🌸 NAME 🌸

uart_port_lock — Lock the UART port 🔒✨

🦋 SYNOPSIS 🦋

void uart_port_lock (struct uart_port *up );

🎀 ARGUMENTS 🎀

• up — Pointer to UART port structure. That’s the UART port struct pointer, periodt. 🫶

💜 SEE ALSO 💜

Like, go read these next, bestie — they’re the whole friend group:

• Kernel file ./include/linux/serial_core.h, struct uart_ops(9)
• uart_port_set_cons(9)
• uart_port_lock_irq(9)
• uart_port_lock_irqsave(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)

Reminder: every name here is literal. Copy the backticked bits exactly, iykyk. 🙈

mwah 💋 source/version ./include/linux, dated October 2026, page uart_port_lock(9) — that’s the sign-off, slay. 🌈