264 See chapter 6 (Functions). 265 266 267 Chapter 5: Typedefs 268 269 Please don't use things like "vps_t". 270 271 It's a _mistake_ to use typedef for structures and pointers. When you see a 272 273 vps_t a; 274 275 in the source, what does it mean? 276 277 In ...
基于Linux和Qt的智能家居系统的设计与实现 针对智能家居的特点及应用背景,设计了一种家庭多功能控制系统。该系统采用飞思卡尔公司ARM Cortex A8系列的i.MX51处理器作为MCU,在其上移植嵌入式Linux作为软件开发平台,并利用Qt相关技术为基础设计友好的用户界面,实现了ARM板的各功能模块与服务器端的交互。系统同时具备数字...
For user-level analysis, CONFIG_UPROBES=y and CONFIG_UPROBE_EVENTS=y, for user-level dynamic tracing. 5. 如果打开了CONFIG_DEBUG_INFO,则可以在动态跟踪中打印内核变量的值。 If your kernel has debuginfo (CONFIG_DEBUG_INFO=y), you can fish out kernel variables from functions. This is a simpl...
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Finally, you can specify a set of default permissions with the umask shell command, which applies a predefined set of permissions to any new file you create. In general, use umask 022 if you want everyone to be able to see all of the files and directories that you create, and use umask...
One of the best features of standard streams is that you can easily manipulate them to read and write to places other than the terminal, as you’ll learn in 2.14 Shell Input and Output. In particular, you’ll learn how to connect streams to files and other processes. 标准流的一个最好的...
X clients don’t have to act like windowed user applications; they can act as services for other clients or provide other interface functions. A window manager is perhaps the most important client service application because it figures out how to arrange windows on screen and provides interactive...
The kernel, existing inside a hard OS shell, controls all primary functions of the respective hardware, independent of the device, including mobile, tablet, desktop or laptop, server, etc. The Linux kernel focuses on these critical functions: ...
This article provides a summary of the important features and bug fixes implemented in the Linux VMCI driver (vmw_vmci.ko) contributed to the upstream Linux kernel. Linux distro releases are expected to include all of the changes described below through the specific version of kernel that the di...
The functions of the platform and codec drivers are: tegra210-admaif : A kernel driver that represents the interface between audio DMA (ADMA) and audio hub (AHUB) tegra210-<xxxx> : Kernel drivers that represent various hardware accelerators in AHUB tegra210-ahub : A kernel driver t...