mux_set_termios(9)

🌸 mux_set_termios(9) — the Kernel API Manual, bestie edition 🎀

okay so this whole page lives in the Kernel API Manual and it's about mux_set_termios(9). short page, big vibe. let's get into it 💅

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✨ NAME ✨

mux_set_termios — Chane port parameters.

not a typo on my end, bestie — "Chane" is literally what it says in the manual 😭 we keep it, we respect it, we move on. (you and i both know it means change 🫶)

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🦋 SYNOPSIS 🦋

void mux_set_termios (struct uart_port *port , struct ktermios *termios
, const struct ktermios *old );

like, it returns void, it takes three args, it's giving "function that is legally required to exist" energy ⭐

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💖 ARGUMENTS 💖

• port — ptr to the uart_port. yes, ptr, not "pointer", we're being efficient today ✨
• termios — the new termios settings 🌈
• old — the old termios settings 🎀

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💀 DESCRIPTION 💀

So here's the whole entire tea: the Serial Mux does not support this function.

that's it. that's the description. not me being lazy, that's genuinely the full text 😭 the Serial Mux looked at this function and said "no ❤️" and the manpage wrote it down in one sentence and dipped.

so if you came here hoping for a deep lore dump about how port parameters get changed… bestie, this is not that page 🙈

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🐝 SEE ALSO 🐝

kernel file ./drivers/tty/serial/mux.c — and like, the whole mux friend group 👑

• get_mux_port_count(9)
• mux_tx_empty(9)
• mux_set_mctrl(9)
• mux_get_mctrl(9)
• mux_stop_tx(9)
• mux_start_tx(9)
• mux_stop_rx(9)
• mux_break_ctl(9)
• mux_write(9)
• mux_read(9)
• mux_startup(9)
• mux_shutdown(9)
• mux_type(9)
• mux_release_port(9)
• mux_request_port(9)
• mux_config_port(9)
• mux_verify_port(9)
• mux_poll(9)
• mux_probe(9)
• mux_init(9)
• mux_exit(9)

the way that's twenty-one functions and honestly? go read them, they probably actually do stuff 😭🔥

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and that's the page, bestie!! 🫶 brought to you by ./drivers/tty/serial, dated October 2026 — mwah, iconic, no notes 💜✨ no cap, go touch some termios 🎀