mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
30 lines
690 B
30 lines
690 B
// SPDX-License-Identifier: GPL-2.0 |
|
/* |
|
* u_f.c -- USB function utilities for Gadget stack |
|
* |
|
* Copyright (c) 2013 Samsung Electronics Co., Ltd. |
|
* http://www.samsung.com |
|
* |
|
* Author: Andrzej Pietrasiewicz <[email protected]> |
|
*/ |
|
|
|
#include "u_f.h" |
|
#include <linux/usb/ch9.h> |
|
|
|
struct usb_request *alloc_ep_req(struct usb_ep *ep, size_t len) |
|
{ |
|
struct usb_request *req; |
|
|
|
req = usb_ep_alloc_request(ep, GFP_ATOMIC); |
|
if (req) { |
|
req->length = usb_endpoint_dir_out(ep->desc) ? |
|
usb_ep_align(ep, len) : len; |
|
req->buf = kmalloc(req->length, GFP_ATOMIC); |
|
if (!req->buf) { |
|
usb_ep_free_request(ep, req); |
|
req = NULL; |
|
} |
|
} |
|
return req; |
|
} |
|
EXPORT_SYMBOL_GPL(alloc_ep_req);
|
|
|