function_descriptors(9)

✨ function_descriptors(9) ✨

Okay bestie, this is the Kernel API Manual page for function_descriptors(9) — and the whole mission is literally to get function descriptors for speed. 💅

🦋 SYNOPSIS 🦋

struct usb_descriptor_header ** function_descriptors (struct usb_function *f , enum usb_device_speed speed );

🎀 ARGUMENTS 🎀

• f — the function 🫶
• speed — the speed ⚡

🌸 DESCRIPTION 🌸

It returns the descriptors — or NULL if not set. That's the whole vibe, no cap. ✨

🔥 SEE ALSO 🔥

The kernel file is ./drivers/usb/gadget/composite.c, and here's the whole SEE ALSO squad, bestie:

• struct usb_os_string(9)
• next_desc(9)
• config_ep_by_speed_and_alt(9)
• config_ep_by_speed(9)
• usb_add_function(9)
• usb_function_deactivate(9)
• usb_function_activate(9)
• usb_interface_id(9)
• usb_func_wakeup(9)
• bos_desc(9)
• usb_add_config(9)
• usb_string_id(9)
• usb_string_ids_tab(9)
• usb_gstrings_attach(9)
• usb_string_ids_n(9)
• usb_composite_probe(9)
• usb_composite_unregister(9)
• usb_composite_setup_continue(9)

🫶 signed off from ./drivers/usb/gadget · October 2026 — mwah 💋