卸载了包 : opkg remove kmod-ath9k - 3.10.49+2014-05-22-1 重新进行安装时出现如下错误: root@hbg:/tmp# opkg install /tmp/kmod-cfg80211_3.10.49+2014-05-22-1_ar71xx.ipk Installing kmod-cfg80211 (3.10.49+2014-05-22-1) to root...Collected errors: * satisfy_dependencies_for:…

系统结构 在上一章我们已经完成了刷机工作,这个时候系统进行了首次启动,并且格式化了它的"可写"分区.那么在设备里分区到底是怎么样进行的呢?我们首先需要知道:不同的处理器下OpenWRT分区是略微有所区别,不是所有的分区都完全相同的.在路由器的FLASH上,内核中所使用的驱动是MTD设备驱动. MTD(Memory Technology Devices,内存技术设备)是用于访问内存类设备(ROM.FLASH)的Linux驱动子系统.它的主要目的使FLASH类设备更加容易被访问,为此它在硬…

1.简介 https://oldwiki.archive.openwrt.org/doc/techref/opkg Opkg 是一个基于 ipkg 的轻量级的软件包管理系统,主要用于嵌入式系统,目前应用opkg的有Open WRT 和 Open Embedded. Opkg的详细使用方法可以参考OpenWRT的 WIKI页面,不再赘述,本文将重点解释opkg的工作原理. OpenWRT Barrier Breaker 14.07 与 潘多拉不一样的系统(尤其注意源) root@OpenWrt:~…

1.安装libc 什么是libc,这里贴一个gnu官方的解释 Any Unix-like operating system needs a C library: the library which defines the ``system calls'' and other basic facilities such as open, malloc, printf, exit... The GNU C Library is used as the C library in the GNU sys…

//Linux设备驱动之HID驱动 源码分析 http://blog.chinaunix.net/uid-20543183-id-1930836.html HID是Human Interface Devices的缩写.翻译成中文即为人机交互设备.这里的人机交互设备是一个宏观上面的概念,任何设备,只要符合HID spec,都可以称之为HID设备.常见的HID设备有鼠标键盘,游戏操纵杆等等.在接下来的代码分析中,可以参考HID的spec.这份spec可以在www.usb.org上找到.分析的代码主要…

http://www-personal.umich.edu/~ppannuto/writings/makefiles.html Makefiles Makefiles (or, the GNU automake system), is a programming language all its own, and you can do some pretty spectacular things with them (it). This is a basic introduction to wh…

转自: apt-get 总结 1.apt-get install <package_name> install a new package. 2.apt-get build-dep <package_name> search the repositories and install the build dependcies for <package_name>. build-dep causes apt-get to install/remove packages in…

转自:https://medium.com/@joshua_robinson/stateful-kubernetes-applications-made-easier-pso-and-flashblade-aa3e2ebb0248 For stateful applications on Kubernetes, Pure Storage Orchestrator automates and productionizes those services with FlashBlade as shar…

原位地址:http://jeffreypalermo.com/blog/the-onion-architecture-part-2/. In part 1, I introduced an architectural pattern that I have named "Onion Architecture".  The object-oriented design concepts are not new, but I'm pulling together a lot of tech…

apt-get 里面有个 build-dep参数,手册写着:build-dep causes apt-get to install/remove packages in an attempt to satisfy the build dependencies for a source package. build-dep参数是指: 根据源码编译时所需的关系包进行搜索并下载安装. 建立要编译软件的环境,可以这样理解:比如我们现在要手工编译pidgin,那如果想让编译正常通过,你可以事先把编译过程中…

apt-get build-dep命令详解 - 星星之火的Blog - CSDN博客  https://blog.csdn.net/starflame/article/details/7416311 今天看到一位网友的签名档写着:“用 Debian 的感觉就象家里开超市一样不管要什么只需一个 apt-get”.实在太贴切了,我也觉得有这种感觉- 今天在ubuntu中文上看到 apt-get 里面有个 build-dep参数,上网查了好久都没有找到答案,手册英文写着: build-dep caus…

| Main | Site Index | Download | mimetic A free/GPL C++ MIME Library mimetic is a free/GPL Email library (MIME) written in C++ designed to be easy to use and integrate but yet fast and efficient. It is based on the C++ standard library and heavily us…

Multitier architecture - Wikipedia https://en.wikipedia.org/wiki/Multitier_architecture Common layers In a logical multilayered architecture for an information system with an object-oriented design, the following four are the most common: Presentatio…

在做OTA升级包的时候,我编译了好多次都没过.老是IO异常.刚開始以为是我 make 的错误.后来多次检查 Error 发现是我的配置信息写错了,与驱动project师一起检查源代码, 改动配置信息后再次 OTA 成功.顺便记下这个这个过程,避免以后再次犯这种错误 make -jxx otapackage / make -jxx 成功后 make -j24 otapackage 运行上述当中一个命令,将ROM打包到ZIP.可mv到TF运行安装升级等 出现的错误提示: <span style=&quo…

DY@MacBook-Pro bin$brew install chromedriver Error: No available formula with the name "chromedriver" It was migrated from homebrew/core to homebrew/cask. You can access it again by running: brew tap homebrew/cask And then you can install it by…

1.uboot的目标就是启动内核kernel: 2.kernel的目的就是启动应用程序,而第一个应用程序即是Init,构建根文件系统. 从uboot初始化配置后,引导内核的启动,启动函数为:start_kernel(void) 其他可以先不管,我们需要的是看看rest_init()函数; 代码如下: asmlinkage void __init start_kernel(void) { char * command_line; extern struct kernel_param __start…

$ composer install Loading composer repositories with package information Updating dependencies (including require-dev) Your requirements could not be resolved to an installable set of packages. Problem 1 - phpunit/phpunit 5.7.5 requires php ^5.6 ||…

Applications based on the Prism Library are composite applications that potentially consist of many loosely coupled types and services. They need to interact to contribute content and receive notifications based on user actions. Because they are loos…

原文链接: https://zhuanlan.zhihu.com/p/29855253 在一个Node.js项目中,package.json几乎是一个必须的文件,它的主要作用就是管理项目中所使用到的外部依赖包,同时它也是npm命令的入口文件. npm 目前支持以下几类依赖包管理: dependencies devDependencies peerDependencies optionalDependencies bundledDependencies / bundleDependencies 如…

今天从git上面download我们项目,然后向往常一样安装Cocoapods.可是却突然发现报错了,尝试了几遍.发现一直报错. 然后我这才看了一下,安装Cocoapods的日志,发现抛出了一个报错. [!] Unable to satisfy the following requirements: - `MJExtension` required by `Podfile` - `MJExtension (= 2.4.4)` required by `Podfile.lock`        …

一个大兄弟本地用了 PHP 7.1 进行开发,而我本地是 PHP 7.0, 于是悲剧发生了. composer install 之后报错 Loading composer repositories with package information Installing dependencies (including require-dev) from lock file Your requirements could not be resolved to an installable set o…

本篇是实战文章,从代码的角度分析这两种方式.本文参考自下列文章: http://www.jianshu.com/p/1d42d2e6f4a5 http://www.jianshu.com/p/94d47da32656 一般在项目中我们需要全局使用app或者其他,这个时候就需要有一个全局的Component作为桥梁,提供给使用方使用.一个Component可以依赖一个或多个Component,并拿到被依赖Component 暴露 出来的实例. <一>依赖关系 全局提供App实例类.上下文Cont…

今日,在学习AnimatorSet时,使用play.with.after.before时,代码书写如下: ObjectAnimator animator1 = ObjectAnimator.ofFloat(v,"translationX",300f); ObjectAnimator animator2 = ObjectAnimator.ofFloat(v,"scaleX",1f,0f,1f); ObjectAnimator animator3 = ObjectAni…

一个错误会浪费好多青春绳命 鉴于此,为了不让大家也走弯路,分享解决方案. [错误代码提示] StandardWrapper.Throwableorg.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userHandler': Injection of resource dependencies failed; [完整错误代码] StandardWrapper.Throwable…

在进行版本的迭代更新时,新功能需求需要对主页面的UI进行重新的布局,但是,报了错误,出了好多约束方面的问题: Unable to simultaneously satisfy constraints. Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out whi…

Is there any way in which I can clean a database in SQl Server 2005 by dropping all the tables and deleting stored procedures, triggers, constraints and all the dependencies in one SQL statement? REASON FOR REQUEST: I want to have a DB script for cle…

这个报错有些长: Unable to simultaneously satisfy constraints.    Probably at least one of the constraints in the following list is one you don't want.     Try this:         (1) look at each constraint and try to figure out which you don't expect;         (2…

为了加强安全性,MySQL5.7为root用户随机生成了一个密码,在error log中,关于error log的位置,如果安装的是RPM包,则默认是/var/log/mysqld.log. 一般可通过log_error设置 mysql> select @@log_error; +---------------------+ | @@log_error | +---------------------+ | /var/log/mysqld.log | +---------------------…

使用cordova开发ios项目的时候,在上传图片碰到一个问题.使用html的<input type="file"/>标签来选择照片或者拍照片,引起了布局报错,然后图片上传过程中很容易崩溃闪退. html页面代码: <html><head></head> <body> <input type="file" /> </body> </html> 然后在真机测试,点击选择文件…

./gradlew app:dependencies or install this Android Studio Plugin https://github.com/rholder/gradle-view…