1USB_EP_ALLOC_REQUEST(9) Kernel Mode Gadget API USB_EP_ALLOC_REQUEST(9)
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6 usb_ep_alloc_request - allocate a request object to use with this
7 endpoint
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10 struct usb_request * usb_ep_alloc_request(struct usb_ep * ep,
11 gfp_t gfp_flags);
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14 ep
15 the endpoint to be used with with the request
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17 gfp_flags
18 GFP_* flags to use
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21 Request objects must be allocated with this call, since they normally
22 need controller-specific setup and may even need endpoint-specific
23 resources such as allocation of DMA descriptors. Requests may be
24 submitted with usb_ep_queue, and receive a single completion callback.
25 Free requests with usb_ep_free_request, when they are no longer needed.
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27 Returns the request, or null if one could not be allocated.
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30 David Brownell <dbrownell@users.sourceforge.net>
31 Author.
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34Kernel Hackers Manual 2.6. November 2011 USB_EP_ALLOC_REQUEST(9)