fusb_sysconfig_linux.cc

来自「嵌入式开发板USB测试」· CC 代码 · 共 51 行

 /* -*- c++ -*- */ 
 /* 
  * Copyright 2003 Free Software Foundation, Inc. 
  *  
  * This file is part of GNU Radio 
  *  
  * GNU Radio 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 3, or (at your option) 
  * any later version. 
  *  
  * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to 
 * the Free Software Foundation, Inc., 51 Franklin Street, 
  * Boston, MA 02110-1301, USA. 
  */ 
  
 #include <fusb.h> 
 #include <fusb_linux.h> 
 
 static const int MAX_BLOCK_SIZE     =  16 * 1024;       // hard limit 
 static const int DEFAULT_BLOCK_SIZE =   4 * 1024;       // fewer kernel memory problems 
 static const int FUSB_BUFFER_SIZE   =   1 * (1L << 20); // 1MB 
  
 fusb_devhandle * 
 fusb_sysconfig::make_devhandle (usb_dev_handle *udh) 
 { 
   return new fusb_devhandle_linux (udh); 
 } 
  
 int fusb_sysconfig::max_block_size () 
 { 
   return MAX_BLOCK_SIZE; 
 } 
  
 int fusb_sysconfig::default_block_size () 
 { 
   return DEFAULT_BLOCK_SIZE; 
 } 
  
 int fusb_sysconfig::default_buffer_size () 
 { 
   return FUSB_BUFFER_SIZE; 
}