因此，您想编写一个内核模块。您知道C，您已经编写了一些可以作为进程运行的常规程序，现在您想知道真正的动作在哪里，一个通配指针可以擦掉文件系统，核心转储意味着重新启动。内核模块到底是什么？模块是可以根据需要加载和卸载的代码段。它们扩展了内核的功能，而无需重新引导系统。例如。模块驱动程序的一种类型是设备驱动程序，它允许内核访问没有模块的系统硬件，我们将不得不构建单片内核并将新功能直接添加到内核映像中，除了具有更大的内核之外，这还具有缺点每次我们想要新功能时都要求我们重建并重新启动内核的过程So, you want to write a kernel module. You know C, you, ve written a few normal programs to run as processes, and now you want to get to where the real action is, to where a single wild pointer can wipe out your file system and a core dump means a reboot.What exactly is a kernel module? Modules are pieces of code that can be loaded and unloaded into th upon demand. They extend the functionality of the kernel without the need to reboot the system. For example.one type of module is the device driver, which allows the kernel to access hardware connected to the syste without modules, we would have to build monolithic kernels and add new functionality directly into the em ernel image, Besides having larger kernels
标签： linux
上传时间： 2022-03-30
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本文首次设计并验证了基于macom三合一芯片设计的光模块电路,该电路旨在提供一种满足SFF-8472中规定的数字诊断功能的低成本SFP+模块。电路采用激光器驱动、限幅放大器、控制器以及时钟恢复单元集成的单芯片,在保证高精度数字诊断功能基础上,实现了低成本高可靠的特点。该电路在光接收接口组件与激光器驱动和限幅放大器单元的限幅放大器部分之间接入滤波器来提高模块的灵敏度及信号质量。在控制器单元的数字电位器的引脚上采用外加电阻的方式避免出现上电不发光的故障问题。该研究结果为下一代SFP-DD光模块设计与开发工作,奠定了一定的理论与实践基础。This paper designs and validates the optical module circuit based on the MACOM Trinity chip for the first time.This circuit aims to provide a low-cost SFP module which meets the digital diagnosis function specified in SFF-8472.The circuit uses a single chip integrated with laser driver,limiting amplifier,controller and clock recovery unit.On the basis of ensuring high precision digital diagnosis function,it achieves the characteristics of low cost and high reliability.The circuit connects a filter between the optical receiving interface module and the limiting amplifier part of the laser driver and limiting amplifier unit to improve the sensitivity and signal quality of the module.The pin of the digital potentiometer in the controller unit is equipped with an external resistance to avoid the problem of power failure.The research results lay a theoretical and practical foundation for optical module design in high-speed data center.
上传时间： 2022-04-03
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说明： 基于51单片机结合ps2手柄的智能小车程序(Smart car program based on 51 single chip combined with ps2 controller)
上传时间： 2022-04-20
上传用户：fliang
说明： 基于51单片机的数字直流电压表相关材料，内容有原理图，仿真文件，论文材料，程序源码等。(The related materials of digital DC voltmeter based on 51 single chip computer include schematic simulation files, paper materials, program source code, etc.)
上传时间： 2022-05-16
上传用户：fliang
说明： 基于stm32f103c8t6单片机的步进电机控制源码，固件库为3.5版本(Based on single-chip stepper motor control stm32f103c8t6 source firmware library version 3.5)
标签： stm32f103c8t6 单片机 步进电机
上传时间： 2022-05-16
上传用户：xsr1983
说明： STM8S单片机驱动CC1101 433无线模块 实现发送数据和接收数据。(STM8S single-chip microcomputer drives CC1101 433 wireless module to transmit data and receive data)
上传时间： 2022-05-16
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说明： 51单片机控制智能温控风扇，多档调节，pwd调速。包含源码和电路图(51 single chip computer control intelligent temperature control fan, multi-stage adjustment, PWD speed regulation. Contains source code and circuit diagrams)
上传时间： 2022-05-17
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说明： 液晶屏LCD12864，程序源码，C51单片机(LCD screen LCD 12864, program source code, C51 single chip)
上传时间： 2022-05-27
上传用户：zhanglei193
说明： C语言下的zmodem通讯源码，能够移植到单片机(C language zmodem communication source code, can be transplanted to the single chip microcomputer)
上传时间： 2022-05-27
上传用户：默默
说明： 51单片机无刷电机仿真源码 IR2101驱动(51 single source simulation brushless motor driver IR2101)
上传时间： 2022-05-27
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