usb_gadget_activate(9)

🌸 NAME 🌸

usb_gadget_activate — activate function which is not ready to work 💅

okay so bestie, you're reading the usb_gadget_activate(9) page from the Kernel API Manual, and we're about to activate a gadget that was lowkey not ready yet. no cap ✨

✨ SYNOPSIS ✨

int usb_gadget_activate (struct usb_gadget *gadget );

🎀 ARGUMENTS 🎀

• gadget — the peripheral being activated, periodt 🫶

🦋 DESCRIPTION 🦋

okay so this routine activates a gadget that was previously deactivated with a usb_gadget_deactivate call. It calls usb_gadget_connect if needed — like, only if needed, bestie, not just for fun 💖

🚨 it's giving "handle with care": this routine may sleep, so it must not be called in interrupt context. not even a little. okay? 😭

On success it returns zero; otherwise you get a negative errno. that's the vibe check, done 💀

💜 SEE ALSO 💜

Kernel file ./drivers/usb/gadget/udc/core.c? iconic. Here's the whole SEE ALSO friend group:

• struct usb_udc(9)
• usb_ep_set_maxpacket_limit(9)
• usb_ep_enable(9)
• usb_ep_disable(9)
• usb_ep_alloc_request(9)
• usb_ep_free_request(9)
• usb_ep_queue(9)
• usb_ep_dequeue(9)
• usb_ep_set_halt(9)
• usb_ep_clear_halt(9)
• usb_ep_set_wedge(9)
• usb_ep_fifo_status(9)
• usb_ep_fifo_flush(9)
• usb_gadget_frame_number(9)
• usb_gadget_wakeup(9)
• usb_gadget_set_remote_wakeup(9)
• usb_gadget_set_selfpowered(9)
• usb_gadget_clear_selfpowered(9)
• usb_gadget_vbus_connect(9)
• usb_gadget_vbus_draw(9)
• usb_gadget_vbus_disconnect(9)
• usb_gadget_connect(9)
• usb_gadget_disconnect(9)
• usb_gadget_deactivate(9)
• usb_gadget_giveback_request(9)
• gadget_find_ep_by_name(9)
• usb_gadget_check_config(9)
• usb_udc_vbus_handler(9)
• usb_gadget_udc_reset(9)
• usb_gadget_udc_start_locked(9)
• usb_gadget_udc_stop_locked(9)
• usb_gadget_udc_set_speed(9)
• usb_gadget_enable_async_callbacks(9)
• usb_gadget_disable_async_callbacks(9)
• usb_udc_release(9)
• usb_initialize_gadget(9)
• usb_add_gadget(9)
• usb_add_gadget_udc_release(9)
• usb_get_gadget_udc_name(9)
• usb_add_gadget_udc(9)
• usb_del_gadget(9)
• usb_del_gadget_udc(9)

source/version: ./drivers/usb/gadget/udc, date: October 2026, title: usb_gadget_activate(9) — mwah 💋🍓