dwc3_prepare_last_sg(9)

💅 dwc3_prepare_last_sg(9) 💅

okay so bestie, this is a page straight outta the Kernel API Manual, and it's all about dwc3_prepare_last_sg — the little function that gets your TRBs ready for the last SG entry. no cap. 🎀

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✨ NAME ✨

dwc3_prepare_last_sg — prepare TRBs for the last SG entry 🦋

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✨ SYNOPSIS ✨

int dwc3_prepare_last_sg (struct dwc3_ep *dep , struct dwc3_request *req
, unsigned int entry_length , unsigned int node );

like, that's the whole signature, verbatim, no notes. 💜

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✨ ARGUMENTS ✨

• dep — the endpoint that the request belongs to, iykyk 👑
• req — the request we're preparing, main character energy fr
• entry_length — the last SG entry size, literally just the size bestie 📏
• node — indicates whether this is not the first entry (for isoc only). that's the whole vibe check on this one 🧚

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✨ DESCRIPTION ✨

it returns the number of TRBs prepared. that's it, that's the description, slay. ⭐

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✨ SEE ALSO ✨

so the kernel file is ./drivers/usb/dwc3/gadget.c and honestly it's giving family reunion — here's the whole guest list, every single one: 💖

• dwc3_gadget_set_test_mode(9)
• dwc3_gadget_get_link_state(9)
• dwc3_gadget_set_link_state(9)
• dwc3_ep_inc_trb(9)
• dwc3_ep_inc_enq(9)
• dwc3_ep_inc_deq(9)
• dwc3_gadget_giveback(9)
• dwc3_send_gadget_generic_command(9)
• dwc3_send_gadget_ep_cmd(9)
• dwc3_gadget_start_config(9)
• dwc3_gadget_calc_tx_fifo_size(9)
• dwc3_gadget_calc_ram_depth(9)
• dwc3_gadget_clear_tx_fifos(9)
• __dwc3_gadget_ep_enable(9)
• __dwc3_gadget_ep_disable(9)
• dwc3_ep_prev_trb(9)
• dwc3_prepare_one_trb(9)
• __dwc3_stop_active_transfer(9)
• dwc3_gadget_start_isoc_quirk(9)
• dwc3_gadget_setup_nump(9)
• dwc3_gadget_check_config(9)
• dwc3_gadget_init(9)

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and that's the whole page bestie, no crumbs left 🍓 — brought to you by the ./drivers/usb/dwc3 girlies, dated October 2026, under the dwc3_prepare_last_sg(9) era. periodt. 💅✨🌈