<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[huihuiwith的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/lc250123</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; lc250123]]></copyright><item><title><![CDATA[Qml virtualkeyboard basic example 改写]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/123019275</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/123019275</guid><author>lc250123</author><pubDate>Sat, 19 Feb 2022 15:41:44 +0800</pubDate><description><![CDATA[TextArea.qml


/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit.
]]></description><category></category></item><item><title><![CDATA[Putty: Using pscp/plink for automated file transfer and command execution from a Windows host]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/122667770</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/122667770</guid><author>lc250123</author><pubDate>Mon, 24 Jan 2022 15:03:36 +0800</pubDate><description><![CDATA[The Putty suite contains several executables beyond the main application. It also has pscp.exe, a command line scp client, and plink.exe which is a command line ssh client.

These clients can be used to run file transfers and commands against hosts in con.]]></description><category></category></item><item><title><![CDATA[openssl 使用]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/122620511</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/122620511</guid><author>lc250123</author><pubDate>Fri, 21 Jan 2022 14:15:20 +0800</pubDate><description><![CDATA[1. 首先需要使用 openssl 生成一个 2048 位的密钥 rsa.key 文件 (rsa.key 密钥文件中包含了私钥和公钥)


# openssl genrsa -out rsa.key 2048

2. 然后从 rsa.key 密钥文件中提取出公钥 pub.key


# openssl rsa -in rsa.key -pubout -out pub.key

3. 使用 pub.key 公钥加密一个文件 (data.zip 为原始文件，back.zip 为加密之后的文件)


# open]]></description><category></category></item><item><title><![CDATA[指定网卡发送广播包]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/120541167</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/120541167</guid><author>lc250123</author><pubDate>Wed, 29 Sep 2021 08:23:33 +0800</pubDate><description><![CDATA[发送端：


#include &lt;sys/types.h&gt;
#include &lt;sys/socket.h&gt;
#include &lt;sys/ioctl.h&gt;
#include &lt;netinet/in.h&gt;
#include &lt;arpa/inet.h&gt;
#include &lt;time.h&gt;
#include &lt;string.h&gt;
#include &lt;stdio.h&gt;
#include &lt;unistd.h&gt;
#]]></description><category></category></item><item><title><![CDATA[WiFi troubleshooting - Linux]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/120314466</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/120314466</guid><author>lc250123</author><pubDate>Wed, 15 Sep 2021 18:34:19 +0800</pubDate><description><![CDATA[Please follow these WiFi troubleshooting steps:

Step 1: Check whether the kernel version customer uses supports this device:

The reference table of Wireless adapters and corresponding kernel versions is available by the link:en:users:drivers:iwlwifi [Li.]]></description><category></category></item><item><title><![CDATA[Ubuntu 安装 dhcp-server]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/120140918</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/120140918</guid><author>lc250123</author><pubDate>Mon, 06 Sep 2021 17:47:16 +0800</pubDate><description><![CDATA[1.安装 sudo apt-get install isc-dhcp-server

2.修改 sudo vim /etc/default/isc-dhcp-server
 NTERFACESv4="" 为指定网卡
 注释掉“#”号：#DHCPDv4_CONF #DHCPDv4_PID
 
 这是修改之后的：
 # Defaults for isc-dhcp-server (sourced by /etc/init.d/isc-dhcp-server)
 # Path ...]]></description><category></category></item><item><title><![CDATA[Enable coredump 调试程序]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/120097078</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/120097078</guid><author>lc250123</author><pubDate>Sat, 04 Sep 2021 11:24:30 +0800</pubDate><description><![CDATA[1. 打开内核 coredump 功能


sudo systemctl stop apport.service
sudo systemctl disable apport.service
sudo echo 'kernel.core_pattern=/var/crash/%e.%t.%s' &gt;&gt; /etc/sysctl.conf    # /etc/sysctl.conf 可能要改变权限才能读写
sudo echo '* soft core unlimited' &gt;&gt; /etc/s]]></description><category></category></item><item><title><![CDATA[libuv 编译使用，打印调用堆栈]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/119968708</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/119968708</guid><author>lc250123</author><pubDate>Sat, 28 Aug 2021 16:12:36 +0800</pubDate><description><![CDATA[libuv 编译选项：


CFLAGS='-g -O0 -funwind-tables' ./configure --disable-silent-rules --disable-udev --enable-debug-log

make -j8 V=1

其中 -funwind-tables 可以打印详细调用堆栈。

写程序使用：t1.cc


#include &lt;ux.h&gt;
#include &lt;unistd.h&gt;
#include &lt;signal.h&gt;
#inclu]]></description><category></category></item><item><title><![CDATA[Ubuntu 镜像]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/109069286</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/109069286</guid><author>lc250123</author><pubDate>Wed, 14 Oct 2020 11:42:20 +0800</pubDate><description><![CDATA[http://mirrors.aliyun.com/ubuntu-releases/
]]></description><category></category></item><item><title><![CDATA[systemd.service]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/107656603</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/107656603</guid><author>lc250123</author><pubDate>Wed, 29 Jul 2020 10:16:38 +0800</pubDate><description><![CDATA[Index · Directives systemd 246



Name

systemd.service — Service unit configuration

Synopsis

service.service



Description

A unit configuration file whose name ends in ".service" encodes information about a process controlled and supervised by systemd]]></description><category></category></item><item><title><![CDATA[AGX Xavier install pip3 and jtop]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/107553899</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/107553899</guid><author>lc250123</author><pubDate>Fri, 24 Jul 2020 09:38:30 +0800</pubDate><description><![CDATA[1. pip3

  sudo apt-get install python3-pip

2. jtop

 sudo -H pip3 install -U jetson-stats
]]></description><category></category></item><item><title><![CDATA[How To Install XRDP on Ubuntu 18.04 LTS]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/107033569</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/107033569</guid><author>lc250123</author><pubDate>Tue, 30 Jun 2020 09:16:55 +0800</pubDate><description><![CDATA[How To Install XRDP on Ubuntu 18.04 LTS

In this tutorial we will show you how to install XRDP on Ubuntu 18.04 LTS. For those of you who didn’t know, XRDP is an Open Source Remote desktop Protocol server, which allows you to RDP to your Linux server. The p]]></description><category></category></item><item><title><![CDATA[双线性插值]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/105089736</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/105089736</guid><author>lc250123</author><pubDate>Wed, 25 Mar 2020 10:55:24 +0800</pubDate><description><![CDATA[下面是关于双线性插值的经典说明图例：

首先，图中有5个像素点：Q_{00}，Q_{01}，Q_{10}，Q_{11}，P。其中四个红色点Q是原图的点，绿色点P就有意思了，理解了它的含义，对双线性插值原理就能有一个概念上的理解。
这个点P，其实是目标图的像素点在原图上的投影！
我们先跳出来想一下：
双线性插值用来做什么？在CV领域，通常是用来改变原图的尺寸。
那么目标图的每个像素点的像素值应该取多...]]></description><category></category></item><item><title><![CDATA["Loading initial ramdisk" is slow at boot]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/104939234</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/104939234</guid><author>lc250123</author><pubDate>Wed, 18 Mar 2020 10:39:16 +0800</pubDate><description><![CDATA[I found out that the slow boot comes from a large initrd. I also found out that at that point the system is relying on a slow but reliable access method from the BIOS to load the kernel. That all make...]]></description><category></category></item><item><title><![CDATA[configure 的依赖库搜索目录]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/104691927</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/104691927</guid><author>lc250123</author><pubDate>Fri, 06 Mar 2020 11:15:33 +0800</pubDate><description><![CDATA[转载：http://blog.sina.com.cn/s/blog_6e32babb0101l674.html

如果有某个依赖库XXX的版本不合，往往需要自己安装一个新的版本， 这时候往往可以用

./configure --with-XXX=/path1/path2/..

这样的方式把新安装的库指定进去。



但是有的时候，./configure --help 会发现，并没有对XXX...]]></description><category></category></item><item><title><![CDATA[version Qt_5 not defined in file libQt5Core.so.5 with link time reference]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/104003387</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/104003387</guid><author>lc250123</author><pubDate>Thu, 16 Jan 2020 13:42:03 +0800</pubDate><description><![CDATA[在 .pro 文件中加入：

 CONFIG -= qt
]]></description><category></category></item><item><title><![CDATA[OpenCV下载]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/103089580</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/103089580</guid><author>lc250123</author><pubDate>Fri, 15 Nov 2019 17:50:15 +0800</pubDate><description><![CDATA[转载：https://blog.youkuaiyun.com/qq_15698613/article/details/98360384


]]></description><category></category></item><item><title><![CDATA[交叉编译busybox]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/102698770</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/102698770</guid><author>lc250123</author><pubDate>Wed, 23 Oct 2019 11:52:37 +0800</pubDate><description><![CDATA[转载自:https://www.cnblogs.com/hnrainll/archive/2011/06/10/2077259.html

交叉编译器: 3.3.2
# wget -c http://www.busybox.net/downloads/busybox-1.7.0.tar.bz2
# tar jxvf busybox-1.7.0.tar.bz2修改源码、配置、编译
---------...]]></description><category></category></item><item><title><![CDATA[Qt css颜色对照表]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/100655685</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/100655685</guid><author>lc250123</author><pubDate>Mon, 09 Sep 2019 11:06:44 +0800</pubDate><description><![CDATA[转自：https://blog.youkuaiyun.com/zy_heu/article/details/78952173


]]></description><category></category></item><item><title><![CDATA[Windows 10 系统 注册表读写]]></title><link>https://blog.youkuaiyun.com/lc250123/article/details/99967457</link><guid>https://blog.youkuaiyun.com/lc250123/article/details/99967457</guid><author>lc250123</author><pubDate>Wed, 21 Aug 2019 15:38:16 +0800</pubDate><description><![CDATA[// 返回 ERROR_FILE_NOT_FOUND 表示没有，返回 ERROR_SUCCESS 表示成功
static LONG OpenKey(HKEY hRootKey, wchar_t* strKey, HKEY &amp;hKey)
{
	LONG nError = RegOpenKeyEx(hRootKey, strKey, NULL, KEY_ALL_ACCESS, &amp;hK...]]></description><category></category></item></channel></rss>