dwc2_update_isoc_urb_state(9)

💫 dwc2_update_isoc_urb_state — the kernel API glow-up 💫

Okay so bestie, welcome to the Kernel API Manual page for dwc2_update_isoc_urb_state, and honestly? It's giving "tiny function, big responsibilities" energy. 👑

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🌸 NAME 🌸

dwc2_update_isoc_urb_state — updates the state of an Isochronous URB when the transfer is stopped for any reason. ✨

So here's the vibe: the fields of the current entry in the frame descriptor array get set based on the transfer state and the input halt_status. And if all the URB frames have been completed? It completes the Isochronous URB. Slay. 💅

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🎀 SYNOPSIS 🎀

enum dwc2_halt_status dwc2_update_isoc_urb_state (struct dwc2_hsotg
*hsotg , struct dwc2_host_chan *chan , int chnum , struct dwc2_qtd *qtd
, enum dwc2_halt_status halt_status );

Not me swooning over a five-argument signature 😭 but like, it's iconic, we respect it.

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🦋 ARGUMENTS 🦋

• hsotg — programming view of the DWC_otg controller 🌈
• chan — programming view of the host channel
• chnum — the channel number, bestie 🔢
• qtd — queue transfer descriptor
• halt_status — the reason for halting a host channel 💀

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⭐ RETURN ⭐

Returns DWC2_HC_XFER_COMPLETE if there are still more frames remaining to be transferred in the URB. 🙈

Otherwise? It returns DWC2_HC_XFER_URB_COMPLETE. Periodt. 💜

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🧚 SEE ALSO 🧚

• Kernel file ./drivers/usb/dwc2/hcd_intr.c — like, go read it, iykyk 📖
• dwc2_update_urb_state(9)
• dwc2_release_channel(9)

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💖 lowkey a reminder: this page lives under ./drivers/usb/dwc2, so that's the neighborhood. no cap.

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okay that's the whole page, bestie 🫶 huge thank you to the ./drivers/usb/dwc2 crew — this one's dated October 2026, and it's dwc2_update_isoc_urb_state(9) til the end 💅✨🎀