USB_EP_ALLOC_REQUEST - Online Linux Manual PageSection : 9
Updated : June 2018
Source : Kernel Hackers Manual 2​.6​.
Note : Kernel Mode Gadget API

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NAMEusb_ep_alloc_request − allocate a request object to use with this endpoint

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SYNOPSISstruct usb_request * usb_ep_alloc_request(struct usb_ep * ep, gfp_t gfp_flags);

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ARGUMENTSep the endpoint to be used with with the request gfp_flags GFP_* flags to use

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DESCRIPTIONRequest objects must be allocated with this call, since they normally need controller−specific setup and may even need endpoint−specific resources such as allocation of DMA descriptors​. Requests may be submitted with usb_ep_queue, and receive a single completion callback​. Free requests with usb_ep_free_request, when they are no longer needed​. Returns the request, or null if one could not be allocated​.

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AUTHORDavid Brownell <​dbrownell@users.sourceforge.net​> Author.

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