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How to open, read, and write from serial port in C?
...a little bit confused about reading and writing to a serial port. I have a USB device in Linux that uses the FTDI USB serial device converter driver. When I plug it in, it creates: /dev/ttyUSB1.
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libevent对比libev的基准测试 - C/C++ - 清泛网 - 专注C/C++及内核技术
...置或更改事件观察器的成本显然比 libev 高得多，API 差异无法解释这一点（libev 中的原生 API 和仿真 API 之间的差异非常小）。这在实践中很重要，因为 libevent API 没有很好的接口来动态更改事件观察者或超时。
在文件描述符数...
How do you access a website running on localhost from iPhone browser
...
If you're using a Mac -
Connect your iPhone to your Mac via USB.
Go to Network Utility (cmd+space and type "network utility")
Go to the "Info" tab
Click on the drop down menu that says "Wi-Fi" and select "iPhone USB" as shown in the photo.
You'll find an IP address like "xxx.xx...
Android代码优化小技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...。这是一个好的习惯，因为你可以从方法声明中得知调用无法改变这个对象的状态。
常量声明为Static Final
先看下面这种声明的方式
static int intVal = 42;
static String strVal = "Hello, world!";
编译器会在类首次被使用到的时候，使用...
Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...正规的FQDN格式则拒绝
reject_unknown_sender_domain：如果DNS无法解析发件人则拒绝
reject_unknown_recipient_domain：如果DNS无法解析收件人则拒绝
reject_non_fqdn_sender：如果发件人的地址不是正规的FQDN格式则拒绝
reject_non_fqdn_recipi...
Android Debug Bridge (adb) device - no permissions [duplicate]
...55f15 device
???????????? no permissions
Investigation
If I run lsusb, I can see which devices I have connected, and where:
$ lsusb
...
Bus 002 Device 050: ID 04e8:6860 Samsung Electronics Co., Ltd GT-I9100 Phone ...
Bus 002 Device 049: ID 18d1:4e42 Google Inc.
This is showing my Samsun...
Eclipse error “ADB server didn't ACK, failed to start daemon”
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ADB will often fail if there is a newline in adb_usb.ini. Remove it, restart it, and that will often solve the problem (at least for me anyway).
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淘宝网采用什么技术架构来实现网站高负载的 - 更多技术 - 清泛网 - 专注C/C...
...拆分系统的。
首先我们来看以下这个图：（作者图片已无法打开，请见谅）
从上面的图可以看出淘宝系统的一个演变过程，在这个演变的过程中，我们所说的拆分就出现V2.2和V3.0之 间。在V2.2版 本中，淘宝几乎所有的逻辑都放...
来自微软的一手内幕：Windows 10是怎么出炉的 - 创意 - 清泛网 - 专注C/C++及内核技术
...种线上论坛也好，现实生活中也好，极力吐槽第一版丑到无法直视。＃往事不堪回首
有些时候，微软的用户会直接找上Myerson。有一次，因为Windows发言人的口误，让大家以为Windows 10会免费。然后，“有个在班格拉斯的小子，...
How to use ADB Shell when Multiple Devices are connected? Fails with “error: more than one device an
...b.html#commandsummary:
-d - Direct an adb command to the only attached USB device. Returns an error when more than one USB device is attached.
-e - Direct an adb command to the only running emulator. Returns an error when more than one emulator is running.
...