__v4l2_ctrl_s_ctrl_string(9)

🎀 NAME 🎀

okay so bestie, welcome to __v4l2_ctrl_s_ctrl_string(9) from the Kernel API Manual ✨ — it's literally the unlocked variant of v4l2_ctrl_s_ctrl_string(), and that's the whole name vibe 💅.

📌 SYNOPSIS 📌

int __v4l2_ctrl_s_ctrl_string (struct v4l2_ctrl *ctrl , const char *s );

🌸 ARGUMENTS 🌸

• ctrl — the control 🎛️ like, the actual control object you're working with.
• s — the new string ✨ the fresh text going in.

💖 DESCRIPTION 💖

okay so what it does: it sets the control's new string safely by going through the control framework 🫶. No sketchy shortcuts, it's doing the proper route.

And here's the key thing — this function assumes the control's handler is already locked 🔒. That's literally the point: it lets you use it from within the v4l2_ctrl_ops functions. So don't come for it about locking, bestie, it's already factored in 😌.

Also super important: this function is for string type controls only 🚨. String. Type. Controls. Only. Don't try it on some other type, okay? 😭

🔗 SEE ALSO 🔗

Kernel file: ./include/media/v4l2-ctrls.h

• union v4l2_ctrl_ptr(9)
• v4l2_ctrl_ptr_create(9)
• struct v4l2_ctrl_ops(9)
• struct v4l2_ctrl_type_ops(9)
• v4l2_ctrl_notify_fnc(9)
• struct v4l2_ctrl(9)
• struct v4l2_ctrl_ref(9)
• struct v4l2_ctrl_handler(9)
• struct v4l2_ctrl_config(9)
• v4l2_ctrl_fill(9)
• v4l2_ctrl_handler_init_class(9)
• v4l2_ctrl_handler_init(9)
• v4l2_ctrl_handler_free(9)
• v4l2_ctrl_lock(9)
• v4l2_ctrl_unlock(9)
• __v4l2_ctrl_handler_setup(9)
• v4l2_ctrl_handler_setup(9)
• v4l2_ctrl_handler_log_status(9)
• v4l2_ctrl_new_custom(9)
• v4l2_ctrl_new_std(9)
• v4l2_ctrl_new_std_menu(9)
• v4l2_ctrl_new_std_menu_items(9)
• v4l2_ctrl_new_std_compound(9)
• v4l2_ctrl_new_int_menu(9)
• v4l2_ctrl_filter(9)
• v4l2_ctrl_add_handler(9)
• v4l2_ctrl_radio_filter(9)
• v4l2_ctrl_cluster(9)
• v4l2_ctrl_auto_cluster(9)
• v4l2_ctrl_find(9)
• v4l2_ctrl_activate(9)
• __v4l2_ctrl_grab(9)
• v4l2_ctrl_grab(9)
• __v4l2_ctrl_modify_range(9)
• v4l2_ctrl_modify_range(9)
• __v4l2_ctrl_modify_dimensions(9)
• v4l2_ctrl_modify_dimensions(9)
• v4l2_ctrl_notify(9)
• v4l2_ctrl_get_name(9)
• v4l2_ctrl_get_menu(9)
• v4l2_ctrl_get_int_menu(9)
• v4l2_ctrl_g_ctrl(9)
• __v4l2_ctrl_s_ctrl(9)
• v4l2_ctrl_s_ctrl(9)
• v4l2_ctrl_g_ctrl_int64(9)
• __v4l2_ctrl_s_ctrl_int64(9)
• v4l2_ctrl_s_ctrl_int64(9)
• v4l2_ctrl_s_ctrl_string(9)
• __v4l2_ctrl_s_ctrl_compound(9)
• v4l2_ctrl_s_ctrl_compound(9)
• v4l2_ctrl_replace(9)
• v4l2_ctrl_merge(9)
• v4l2_ctrl_log_status(9)
• v4l2_ctrl_subscribe_event(9)
• v4l2_ctrl_poll(9)
• v4l2_ctrl_request_setup(9)
• v4l2_ctrl_request_complete(9)
• v4l2_ctrl_request_hdl_find(9)
• v4l2_ctrl_request_hdl_put(9)
• v4l2_ctrl_request_hdl_ctrl_find(9)
• v4l2_queryctrl(9)
• v4l2_query_ext_ctrl_to_v4l2_queryctrl(9)
• v4l2_query_ext_ctrl(9)
• v4l2_querymenu(9)
• v4l2_g_ctrl(9)
• v4l2_s_ctrl(9)
• v4l2_g_ext_ctrls(9)
• v4l2_try_ext_ctrls(9)
• v4l2_s_ext_ctrls(9)
• v4l2_ctrl_subdev_subscribe_event(9)
• v4l2_ctrl_subdev_log_status(9)
• v4l2_ctrl_new_fwnode_properties(9)
• v4l2_ctrl_type_op_equal(9)
• v4l2_ctrl_type_op_init(9)
• v4l2_ctrl_type_op_log(9)
• v4l2_ctrl_type_op_validate(9)

okay that's the whole page bestie 🫶 it lives at ./include/media, dated October 2026, and it's sending you off with a kiss 💋✨