usb_gadget_check_config(9)

💖 NAME 💖 — usb_gadget_check_config, from the Kernel API Manual

okay bestie, welcome to the Kernel API Manual glow-up for usb_gadget_check_config. This one checks if the UDC can support the binded configuration. (Yes, "binded" is literally the word in the original — we're keeping the exact vibe, no cap.) 💅

✨ SYNOPSIS ✨

int usb_gadget_check_config (struct usb_gadget *gadget );

🎀 ARGUMENTS 🎀

• gadget — the controller to check the USB configuration. That's the whole argument, bestie. 🫶

🦋 DESCRIPTION 🦋

okay so the job here is to ensure that a UDC is able to support the requested resources by a configuration, and that there are no resource limitations, such as internal memory allocated to all requested endpoints. It's giving "resources check before we commit," and honestly? iconic. ✨

It returns zero on success, else a negative errno. That's it. No cap. 💀

🌸 SEE ALSO 🌸

the whole related-calls squad, linked and loaded:

• Kernel file ./drivers/usb/gadget/udc/core.c
• 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_activate(9)
• usb_gadget_giveback_request(9)
• gadget_find_ep_by_name(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)

💅 cute sign-off: source/version ./drivers/usb/gadget/udc, date October 2026, page usb_gadget_check_config(9) — periodt. 🎀