The logical Host Controller Interface does not consider multiplexing/routing over the Host Controller Transport Layer(s). The Host designer must consider this in deciding which of the multiple controller configurations it will support. Each logical A…

1 End-to-end Protocols(端到端协议) 传输层协议往往是主机对主机(host-to-host)或者说是端到端(end-to-end).通常希望传输层协议可以提供如下service: 1. 保证资料可以成功传输给对方.例如TCP,就是一个非常可靠的protocol,在做文件传输时,必须保证100%正确,因此往往使用TCP. 2. 保证封包原来的顺序.在做文件传输时,资料比较大,需要切割,送达目的地时要保证顺序不能乱掉. 3. 对每一个message最多只收到一份copy.资料传…

Protecting computer systems from attacks that attempt to change USB topology and for ensuring that the system's information regarding USB topology is accurate is disclosed. A software model is defined that, together with secure USB hardware, provides…

在Vmware里安装完Ubuntu16.10,启动时出现'SMBus Host Controller not enabled'错误提示,进不到图形界面.网上搜了一下,解决办法是在图形界面里进终端窗口,编辑blacklist.conf文件,禁止i2c_piix4驱动的加载.但现在系统还没加载完,进不去终端窗口,如何处理呢? 解决办法如下(亲测可用): 在虚拟机上运行Linux内核版本为4.7或以上的系统都在安装过程中或在启动时会因为加载intel_powerclamp驱动而导致崩溃.解决办法:1.…

The Host Controller (HC) contains a set of on-chip operational registers which are mapped into a noncacheable portion of the system addressable space. These registers are used by the Host Controller Driver (HCD). According to the function of these re…

1. 主机控制器(Host Controller) • UHCI: Universal Host Controller Interface (通用主机控制接口, USB1.0/1.1)      • OHCI: Open Host Controller Interface (开放主机控制接口,USB1.0/1.1)      • EHCI: Enhanced Host Controller Interface (用于USB2.0高速设备的“增强主机控制接口”) USB的拓扑结构决定了主机控制器就…

1 Principles behind Transport Layer Services 1.1 Multiplexing/Demultiplexing Multiplexing at sender side, Demultiplexing at receiver side. How Demultiplexing Index with: IP + Port num This part indicates that transport layer processes data with multi…

http://stackoverflow.com/questions/13333794/networking-difference-between-transport-layer-and-networking-layer Transport Layer: The fourth and “middle” layer of the OSI Reference Model protocol stack is the transport layer. I consider the transport l…

问题描述:Ubuntu开机时提示“piix4_smbus 0000:00:07.3: SMBus Host controller not enabled” 版本:Ubuntu 18.04    VMware 14.0 出现原因:系统装入i2c_piix4模块所致,因为系统找不到这个模块,所以报错 解决办法:1,查明装入模块的确切名字.命令:lsmod | grep i2c (查询结果为:i2c_piix4 模块) 2,将该模块列入不装入名单.编辑文件命令:sudo vi  /etc/modpro…

实验系统:ubuntu-16.04.6-server-amd64 我在VMware安装完这个系统后进入发现卡在了’SMBus Host Controller not enabled‘里,后来查过网络发现,需要禁止i2c_piix4驱动的加载,禁止需要编辑blacklist.conf: 方法如下: 1.在ubuntu开机时进入grub启动选项 2.选择Advanced options for Ubuntu 3.进入Ubuntu的恢复模式(recovery mode) 4.在Recovery Men…