mux_probe(9)

okay bestie, welcome to the mux_probe(9) glow-up ✨ this is the kernel API manual page for the tiny function that decides whether the Serial Mux should claim a device or, like, respectfully decline 💅

🎀 NAME 🎀

mux_probe — Determine if the Serial Mux should claim this device.

✨ SYNOPSIS ✨

int mux_probe (struct parisc_device *dev );

🫶 ARGUMENTS 🫶

• dev — the parisc device in question. That’s the whole argument, bestie, no secret extra params hiding in the group chat 👑

🌸 DESCRIPTION 🌸

okay so the original literally spells it “Deterimine” — typo era, we love her 😭 — but the function’s whole vibe is: figure out if the Serial Mux should claim this chip.

• Return 0 — yep, claim this chip, she’s ours 💖
• Return 1 — nope, not this one, leave it alone 🙈

Main character energy is literally just returning one of those two values. no cap 🫶

🦋 SEE ALSO 🦋

the kernel file to peek at is ./drivers/tty/serial/mux.c — and here’s the whole related-function squad, all present and accounted for 🔥

• 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_set_termios(9)
• mux_type(9)
• mux_release_port(9)
• mux_request_port(9)
• mux_config_port(9)
• mux_verify_port(9)
• mux_poll(9)
• mux_init(9)
• mux_exit(9)

and for the cute little footer moment: this page’s source/version corner is ./drivers/tty/serial, dated October 2026, and the manual title is mux_probe(9). periodt 💅✨