mux_get(9)

okay bestie, this is mux_get(9) from the Kernel API Manual 💖 like, the whole point is getting the mux-control for a device, and yes we’re gonna cover every tiny detail. no cap.

🌸 NAME 🌸

mux_get — get the mux-control for a device. 👑

✨ SYNOPSIS ✨

the whole vibe is:

       struct mux_control * mux_get (struct device *dev , const char *mux_name
       , unsigned int *state , bool optional , struct device_node *node );

💅 ARGUMENTS 💅

• dev — the device that needs a mux-control. 🫶
• mux_name — the name identifying the mux-control. 🎀
• state — pointer to where the requested state is returned, or NULL when the required multiplexer states are handled by other means. literally important info, bestie.
• optional — whether to return NULL and silence errors when mux doesn't exist. lowkey the chill setting, iykyk.
• node — the device nodes, use dev->of_node if it is NULL. 🦋

🦋 RETURN 🦋

on success you get a pointer to the mux-control, periodt. on error? an ERR_PTR with a negative errno. and if optional is true and mux doesn't exist, you get NULL — no cap. 😭

🌈 SEE ALSO 🌈

bestie, the whole SEE ALSO squad is:

• 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_control_deselect(9)
• mux_state_deselect(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)

💖 source/version: ./drivers/mux · date: October 2026 · catch you later, bestie! 🫶