centos man page for usb_ep_dequeue

Query: usb_ep_dequeue

OS: centos

Section: 9

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

USB_EP_DEQUEUE(9)					      Kernel Mode Gadget API						 USB_EP_DEQUEUE(9)

NAME
usb_ep_dequeue - dequeues (cancels, unlinks) an I/O request from an endpoint
SYNOPSIS
int usb_ep_dequeue(struct usb_ep * ep, struct usb_request * req);
ARGUMENTS
ep the endpoint associated with the request req the request being canceled
DESCRIPTION
if the request is still active on the endpoint, it is dequeued and its completion routine is called (with status -ECONNRESET); else a negative error code is returned. note that some hardware can't clear out write fifos (to unlink the request at the head of the queue) except as part of disconnecting from usb. such restrictions prevent drivers from supporting configuration changes, even to configuration zero (a "chapter 9" requirement).
AUTHOR
David Brownell <dbrownell@users.sourceforge.net> Author.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 USB_EP_DEQUEUE(9)
Related Man Pages
usb_unlink_urb(9) - suse
usb_gadget_config_buf(9) - centos
usb_unlink_urb(9) - centos
struct_usb_composite_dev(9) - suse
usb_gadget_config_buf(9) - suse
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