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linux/usb/hcd.h?

usb_hcd_submit_urb

Top / usb_hcd_submit_urb

http://lxr.onakasuita.org/ident?i=usb_hcd_submit_urb

/* may be called in any context with a valid urb->dev usecount
 * caller surrenders "ownership" of urb
 * expects usb_submit_urb() to have sanity checked and conditioned all
 * inputs in the urb
 */

int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)

実装

• drivers/usb/core/hcd.c

呼び出し

• get_urb? - increments the reference count of the urb
• atomic_inc?
• usbmon_urb_submit?
• if is_root_hub?
  • rh_urb_enqueue
• else
  • map_urb_for_dma?
  • hc_driver.urb_enqueue
  • unmap_urb_for_dma?
• unlikely
• usbmon_urb_submit_error?
• usb_kill_urb_queue?
• usb_put_urb? -> usb_free_urb?

呼び出し元

• usb_submit_urb

関連

• usb_hcd