store_protocols(9)

store_protocols(9) 🎀

okay bestie, this is the Kernel API Manual page for store_protocols(9), and it's literally the function that changes the current/wakeup IR protocol(s). periodt.

✨ NAME ✨

store_protocols — changes the current/wakeup IR protocol(s)

🌸 SYNOPSIS 🌸

ssize_t store_protocols (struct device *device , struct device_attribute *mattr , const char *buf , size_t len );

🦋 ARGUMENTS 🦋

• device — the device descriptor. the whole device vibe.
• mattr — the device attribute struct. yes, that one.
• buf — a pointer to the input buffer. the input lives here.
• len — length of the input buffer. how much input we're working with.

💅 DESCRIPTION 💅

So this routine is for changing the IR protocol type. it gets triggered by writing to /sys/class/rc/rc?/[wakeup_]protocols. for the valid commands, go check parse_protocol_change — iykyk. it returns len on success, or a negative error code if things are not giving.

dev->lock is taken to guard against races between store_protocols and show_protocols. no cap, that lock is doing important work.

🔥 SEE ALSO 🔥

Kernel file ./drivers/media/rc/rc-main.c — and the whole see-also friend group:

• scancode_to_u64(9)
• ir_create_table(9)
• ir_free_table(9)
• ir_resize_table(9)
• ir_update_mapping(9)
• ir_establish_scancode(9)
• ir_setkeycode(9)
• ir_setkeytable(9)
• ir_lookup_by_scancode(9)
• ir_getkeycode(9)
• rc_g_keycode_from_table(9)
• ir_do_keyup(9)
• rc_keyup(9)
• ir_timer_keyup(9)
• ir_timer_repeat(9)
• rc_repeat(9)
• ir_do_keydown(9)
• rc_keydown(9)
• rc_keydown_notimeout(9)
• rc_validate_scancode(9)
• rc_validate_filter(9)
• struct rc_filter_attribute(9)
• show_protocols(9)
• parse_protocol_change(9)
• show_filter(9)
• store_filter(9)
• show_wakeup_protocols(9)
• store_wakeup_protocols(9)

💖 that's the whole page, bestie — sourced from ./drivers/media/rc, dated October 2026. go off, kernel queen 👑