ARM做为USB从设备的实现 include, linux, 网上

yuyang911220

ARM做为USB从设备的实现,在linux内核中有例程,很遗憾,不能直接拿过来用.

主要有两方面原因:
1,内核缺少一个头文件.
#include/linux/usb/g_hid.h
时间太久了,记得不太清楚.好像是这个文件.从网上down下来之后,扔到内核头文件里面即可.
里面的内容为:
[cpp] view plaincopy

• /*
• * g_hid.h -- Header file for USB HID gadget driver
• *
• * Copyright (C) 2010 Fabien Chouteau <fabien.chouteau@barco.com>
• *
• * This program is free software; you can redistribute it and/or modify
• * it under the terms of the GNU General Public License as published by
• * the Free Software Foundation; either version 2 of the License, or
• * (at your option) any later version.
• *
• * This program is distributed in the hope that it will be useful,
• * but WITHOUT ANY WARRANTY; without even the implied warranty of
• * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
• * GNU General Public License for more details.
• *
• * You should have received a copy of the GNU General Public License
• * along with this program; if not, write to the Free Software
• * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
• */
  
• 
  
• #ifndef __LINUX_USB_G_HID_H
  
• #define __LINUX_USB_G_HID_H
  
• 
  
• struct hidg_func_descriptor {  
•         unsigned char           subclass;  
•         unsigned char           protocol;  
•         unsigned short          report_length;  
•         unsigned short          report_desc_length;  
•         unsigned char           report_desc[];  
• };  
• #endif /* __LINUX_USB_G_HID_H */