mux_control_deselect(9)

💅 mux_control_deselect — bestie, it's time to let go

Okay so this is a page from the Kernel API Manual, and it's about the part where you stop hogging the multiplexer. Yes, the goodbye. The release. The "okay ily bye" moment 🫶

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✨ NAME ✨

mux_control_deselect — Deselect the previously selected multiplexer state.

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🎀 SYNOPSIS 🎀

int mux_control_deselect(struct mux_control *mux);

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🌸 ARGUMENTS 🌸

• mux — the mux-control you're deselecting. That's the one. Say bye to it 💖

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🦋 DESCRIPTION 🦋

So here's the rule, and it's not a vibe, it's a requirement, no cap: for every single successful call you make to either mux_control_select or mux_control_try_select, you owe exactly one call to mux_control_deselect. Every. Single. One. It's giving "you took it out of the box, you put it back" energy ✨

Like, the select and the deselect are a matched set, iykyk. Don't leave it unbalanced, that's not the move 🙈

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🔥 RETURN 🔥

• 0 on success 🎉
• a negative errno on error 😭

And here's the tea: an error can only occur if the mux has an idle state. That's the only door it can come through, literally.

⚠️ Big important thing though, bestie: even if an error happens, the mux-control is still unlocked and is thus free for the next access. So like, the error isn't holding the mux hostage or anything. It's free. It's fine. We move 💅

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🌈 SEE ALSO 🌈

The whole friend group 💖 — go say hi:

• Kernel file ./drivers/mux/core.c
• struct mux_state(9)
• struct devm_mux_state_state(9)
• mux_chip_alloc(9)
• mux_chip_register(9)
• mux_chip_unregister(9)
• mux_chip_free(9)
• devm_mux_chip_alloc(9)
• devm_mux_chip_register(9)
• mux_control_states(9)
• mux_control_select_delay(9)
• mux_state_select_delay(9)
• mux_control_try_select_delay(9)
• mux_state_try_select_delay(9)
• mux_state_deselect(9)
• mux_get(9)
• mux_control_get(9)
• mux_control_get_optional(9)
• mux_control_put(9)
• devm_mux_control_get(9)
• mux_state_get(9)
• __devm_mux_state_get(9)
• devm_mux_state_get_from_np(9)
• devm_mux_state_get_optional(9)
• devm_mux_state_get_selected(9)
• devm_mux_state_get_optional_selected(9)

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Periodt. That's the whole page, and it lives in ./drivers/mux, dated October 2026, under the Kernel API Manual banner 🌸 Go forth and deselect responsibly, bestie — one deselect per successful select, always, fr fr 💜👑