The Linux-USB Host Side API | ||
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host controller returning the URB
urb being returned to the USB device driver.
pt_regs, passed down to the URB completion handler
This hands the URB from HCD to its USB device driver, using its completion function. The HCD has freed all per-urb resources (and is done using urb->hcpriv). It also released all HCD locks; the device driver won't cause problems if it frees, modifies, or resubmits this URB.
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usb_bus_start_enum | Up | usb_hcd_irq |