<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[wutu_csdn_blog的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/wutu_csdn_blog</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; wutu_csdn_blog]]></copyright><item><title><![CDATA[晶视算能实现u盘功能和usb device 存储功能]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/150427692</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/150427692</guid><author>wutu_csdn_blog</author><pubDate>Fri, 15 Aug 2025 17:34:44 +0800</pubDate><description><![CDATA[etc/run_usb.sh probe msc /dev/mmcblk1p1（对应需要识别的磁盘分区）3，最后要同时支持host和device功能，默认情况下是只支持host功能。/dev/sda*，即可进行格式化挂载等，启动默认host。2，支持usb device 存储功能。5，usb device 存储功能。打开usb device 存储。打开usb Gadget。1，打开usb存储功能。插上U盘既可以识别到。]]></description><category></category></item><item><title><![CDATA[GB28181，sdk，设备集成和平台测试]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/132801270</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/132801270</guid><author>wutu_csdn_blog</author><pubDate>Mon, 11 Sep 2023 11:05:38 +0800</pubDate><description><![CDATA[本文章主要测试记录集成gb28181的arm端，用公开的平台测试gb2818的视频传输等]]></description><category></category></item><item><title><![CDATA[Qt，设计小型多客户端，多线程，互斥，可收发tcp服务端]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/128002409</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/128002409</guid><author>wutu_csdn_blog</author><pubDate>Wed, 23 Nov 2022 16:45:51 +0800</pubDate><description><![CDATA[这是基于QT5开发的一个Tcp服务端，日志简易tcp服务器，实现了多线程，多客户端，互斥，链表，高并发，接收数据，按文件夹分类写入到文件中，是一个用于调试接收打印log，debug等数据的小型tcp服务器]]></description><category></category></item><item><title><![CDATA[不用海思himm,使用海思api写寄存器]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/106815186</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/106815186</guid><author>wutu_csdn_blog</author><pubDate>Wed, 17 Jun 2020 17:51:56 +0800</pubDate><description><![CDATA[HI_S32 HI_MPI_SYS_SetReg(HI_U32 u32Addr, HI_U32 u32Value);
HI_S32 HI_MPI_SYS_GetReg(HI_U32 u32Addr, HI_U32 *pu32Value);

]]></description><category></category></item><item><title><![CDATA[cron 添加任务]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/73163027</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/73163027</guid><author>wutu_csdn_blog</author><pubDate>Tue, 13 Jun 2017 10:42:02 +0800</pubDate><description><![CDATA[只能
crontab -e

编辑，不可通过vim这样创建文件]]></description><category></category></item><item><title><![CDATA[获取外网ip]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/72975537</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/72975537</guid><author>wutu_csdn_blog</author><pubDate>Sat, 10 Jun 2017 15:44:47 +0800</pubDate><description><![CDATA[1，wget http://ddns.nat123.com/
2，wget www.ip138.com
解析index.html]]></description><category></category></item><item><title><![CDATA[android layout]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/72835431</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/72835431</guid><author>wutu_csdn_blog</author><pubDate>Thu, 01 Jun 2017 22:35:56 +0800</pubDate><description><![CDATA[1,gravity 子控件现对于父控件（当前控件的属性，比如居中），一般设置在父控件的属性里；
layout_gravity 是当前控件的属性，一般设在子控件里；]]></description><category></category></item><item><title><![CDATA[android studio 添加码云git]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/71750964</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/71750964</guid><author>wutu_csdn_blog</author><pubDate>Fri, 12 May 2017 18:21:39 +0800</pubDate><description><![CDATA[git pull origin master --allow-unrelated-histories
git push origin master:master --force]]></description><category></category></item><item><title><![CDATA[ffmpeg 没有ffplay]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/70208914</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/70208914</guid><author>wutu_csdn_blog</author><pubDate>Mon, 17 Apr 2017 11:12:08 +0800</pubDate><description><![CDATA[1，安装sdl2
sudo apt-get install libsdl2-dev

2，配置参数configure
--enable-sdl2
--enable-ffplay 

3,可查看config.mak
看相应的编译宏前是否有！
没有说明配置成功]]></description><category></category></item><item><title><![CDATA[java jni]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/70141275</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/70141275</guid><author>wutu_csdn_blog</author><pubDate>Wed, 12 Apr 2017 13:40:04 +0800</pubDate><description><![CDATA[生成 jni .h 文件


点中相应类，即可生成。]]></description><category></category></item><item><title><![CDATA[linux 命令]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/56841260</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/56841260</guid><author>wutu_csdn_blog</author><pubDate>Fri, 24 Feb 2017 14:58:47 +0800</pubDate><description><![CDATA[删除隐藏文件
rm -rf  .[!.]*

查找空文件夹
find -type d -empty 

查找空文件，并在空文件下创建 .keep文件
find -type d -empty -exec touch {}/.keep \;]]></description><category></category></item><item><title><![CDATA[java 的stream流]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/55050557</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/55050557</guid><author>wutu_csdn_blog</author><pubDate>Mon, 13 Feb 2017 17:02:18 +0800</pubDate><description><![CDATA[引用http://www.runoob.com/java/java-files-io.html]]></description><category></category></item><item><title><![CDATA[java学习笔记]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/54949046</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/54949046</guid><author>wutu_csdn_blog</author><pubDate>Thu, 09 Feb 2017 16:57:18 +0800</pubDate><description><![CDATA[java类不做表示，默认为defaul类型;

public： Java语言中访问限制最宽的修饰符，一般称之为“公共的”。被其修饰的类、属性以及方法不仅可以跨类访问，而且允许跨包（package）访问。
private: Java语言中对访问权限限制的最窄的修饰符，一般称之为“私有的”。被其修饰的类、属性以及方法只能被该类的对象访问，其子类不能访问，更不能允许跨包访问。
protect:]]></description><category></category></item><item><title><![CDATA[ssh ubuntu 14.04.5 无密码登陆出错]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/54615587</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/54615587</guid><author>wutu_csdn_blog</author><pubDate>Thu, 19 Jan 2017 16:36:46 +0800</pubDate><description><![CDATA[sshd为了安全，对属主的目录和文件权限有所要求。如果权限不对，则ssh的免密码登陆不生效。

当不知道什么问题的时候，可以更改/etc/ssh/sshd_config里的
LogLevel 的等级改为 DEBUG3
然后重启运行ssh，
然后登陆ssh
ssh -i username@ip
这样就可以在一般在/var/log/auth.log就会有登陆失败的具体原因。


一]]></description><category></category></item><item><title><![CDATA[XPHSF]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/54409796</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/54409796</guid><author>wutu_csdn_blog</author><pubDate>Fri, 13 Jan 2017 16:24:18 +0800</pubDate><description><![CDATA[1,a^0+a^1+a^2+a^3+...+a^n=(a^(n+1)-1)/(a-1),a>1]]></description><category></category></item><item><title><![CDATA[opencv一些事]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/54020576</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/54020576</guid><author>wutu_csdn_blog</author><pubDate>Wed, 04 Jan 2017 16:18:14 +0800</pubDate><description><![CDATA[1，出现“opencv2/core/core.hpp:1708:18: note:   ‘cv::Mat’”错误，只需文件中添加using namespace cv;]]></description><category></category></item><item><title><![CDATA[求以log2为底的对数值]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/53929946</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/53929946</guid><author>wutu_csdn_blog</author><pubDate>Thu, 29 Dec 2016 16:41:25 +0800</pubDate><description><![CDATA[如 log2（65）=6；
经验算，最大支持2^32-1值的输入
Uint8 Log2EX(Uint32 x)  
{   Uint8 i=0;
for(i=31;i>=0;i--)
{
if(1 ==(x>>i)&0x1){
break;
}
}
    return i;  
}]]></description><category></category></item><item><title><![CDATA[makefile]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/53896253</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/53896253</guid><author>wutu_csdn_blog</author><pubDate>Tue, 27 Dec 2016 16:03:14 +0800</pubDate><description><![CDATA[1,解析字符串的第一，二字符
str=D12162701
send:=$(shell echo $(str) | head -c 1)
  
send:=$(shell echo $(str) | head -c 2) 

send:=$(shell echo $(SECOND) | tail -c 2)

send:=$(subst D,R,$(SECOND)) //
$(su]]></description><category></category></item><item><title><![CDATA[Git]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/53786031</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/53786031</guid><author>wutu_csdn_blog</author><pubDate>Wed, 21 Dec 2016 15:51:41 +0800</pubDate><description><![CDATA[1，误删本地文件，从本地仓库中拿取，恢复。
要查看删除的文件： git ls-files
 –deleted

恢复则需要从新checkout： git checkout – 
多个文件同时操作可以使用xargs
git ls-fies -d | xargs git checkout --]]></description><category></category></item><item><title><![CDATA[CentOS7]]></title><link>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/53762317</link><guid>https://blog.youkuaiyun.com/wutu_csdn_blog/article/details/53762317</guid><author>wutu_csdn_blog</author><pubDate>Tue, 20 Dec 2016 14:12:39 +0800</pubDate><description><![CDATA[1，虚拟机中除去虚拟网桥virbr0：
a，安装了虚拟化相关的软件包，会自动创建虚拟网桥和虚拟网卡，ifconfig就会看到多了一个virbr0网卡；
b，卸载，删除它
#
 virsh net-listName
  
#
 virsh net-destroy default
#
 virsh net-undefine default
#
 service libvirtd]]></description><category></category></item></channel></rss>