uart_port_tx(9)

💖 NAME 💖

okay so this page is uart_port_tx(9) from the Kernel API Manual, and the NAME line is literally uart_port_tx - - transmit helper for uart_port. Lowkey iconic kernel-core vibes only. 💅

✨ SYNOPSIS ✨

Here's the whole call, copied exactly so nobody gets creative with the commas:

uart_port_tx (port , ch , tx_ready , put_char );

🎀 ARGUMENTS 🎀

• port — uart port. That's the whole note, no extra lore. 🫶
• ch — variable to store a character to be written to the HW.
• tx_ready — can HW accept more data function. Yes, that's the phrasing, and honestly it ate. 🔥
• put_char — function to write a character.

💅 DESCRIPTION 💅

See uart_port_tx_limited for more details.

That's literally the whole description, bestie — no cap, no extra paragraphs, just a point in the direction of uart_port_tx_limited. Go drink water and read that one too. 💖

🦋 SEE ALSO 🦋

okay so the linked lore is long and honestly kind of slay:

• 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_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_flags(9)

kay bye bestie 💋 this page came from ./include/linux, dated October 2026, and yes it's still uart_port_tx(9) — periodt. 🌈