This article from the csdn blog, reproduced please indicate the source: http://blog.csdn.net/aaa6695798/archive/2009/11/06/4776202.aspx
All struct declarations can be found in the kernel source file USB. H. If you are interested, read the source code.
USB devices are actually complicated, but the Linux Kernel provides a subsystem called USB core to handle most of the complicated work. Therefore, the interface between the driver and USB core is described here.
In the USB device organization s
Summary:Overview of the Windows Communication Foundation (WCF) architecture and its main concepts. The code example demonstrates WCF conventions, endpoints, and behaviors. Contents of this pageBrief introductionWCF Basicscode exampleSummaryBrief introductionThis document provides an overview of the Windows Communication Foundation (WCF) architecture. This article is intended to illustrate the main concepts in WCF and how they coordinate work. There are several code examples that explain these co
and interfaces.(Interface) and the endpoint, the USB device is bound to the interface, rather than the entire USB device. As shown in:
The most basic form of USB communication is through the terminal (USB endpoint interrupt, batch, and other time, controlThe USB endpoint can only transmit data to one direction, from the host to the device or from the device to
This article was reproduced from: http://blog.csdn.net/zqixiao_09/article/details/50984074In the end user's view, USB device provides a variety of additional functions, such as file transfer, sound playback, etc., but it is consistent with the interface of all USB devices for USB host. A USB device consists of 3 function modules:USB bus interface ,USB logic device and functional unit:A--the USB bus interface here refers to the USB device in the serial Interface Engine (SIE);B--USB logic device i
This article from Csdn Blog, reproduced please indicate the source: http://blog.csdn.net/aaa6695798/archive/2009/11/06/4776202.aspx
This part of all the structure of the Declaration can be found in the kernel source file usb.h, interested friends can read the source code.
USB devices are complex, but the Linux kernel provides a subsystem called USB core to handle most of the complex work, so this is what is described here as the interface between the driver and the USB core.
In the USB devi
problems. Chapter 8 summarizes the full text and concluding remarks. 2. Basic Concepts This section describes the basic Nat terms used in this article, and focuses on the general NAT traversal technology applicable to UDP and TCP Protocols. 2.1. The vast majority of terms and classifications in this article are defined in RFC 2663, and some are defined in the new RFC 3489. It is important to understand the session. A tcp or UDP session endpoint is co
and EndpointA host is a typical physical entity with one or more IP addresses.Endpoint (sctp endpoint)The endpoint is the basic logic concept of sctp. It is the logic sender and receiver of the datagram, and is a typical entity of the collections.A transfer address (IP address + sctp port number) uniquely identifies an endpoint. One
line segment, the control parameter actually has only two endpoint coordinates and the line width.From the above analysis, we know that given a series of points (n) and the width of the line, the number of vertices required to draw a segment is n * 2.How to calculate verticesTwo end-point scenariosHow should n vertex data be calculated at that time? Let's start with an example of a simple 2-dimensional drawing and now assume that there are two endpoi
Boost.asio Fundamentals This chapter covers some of the things you must know when you use Boost.asio. We will also delve deeper into asynchronous programming that is more alert and fun than synchronous programming.This section of the network API contains the things you must know when writing Web applications using Boost.asio.Everything in the Boost.asio namespace Boost.asio needs to be included in the namespace of Boost::asio or within its sub-namespace. Boost::asio: This is where the core class
Windows Communication Foundation (WCF) (formerly known as "Indigo") will fundamentally change the distributed programming interface for developers using Microsoft. NET Framework. The entire set of existing. net distributed technology is integrated into a programming model, which improves your experience through stable structure, greatly improved functionality and interoperability, and all the scalability you want. This article will introduce you to WCF programming and how to get started quickly.
; // process the transmitter information; used for low-speed, full-speed devices, and high-speed hubint ttport; // The device port unsigned int toggle located in the TT hub [2]; // occupies one position for each endpoint, indicates the direction of the endpoint ([0] = In, [1] = out) struct usb_device * parent; // The upper-level hub pointer struct usb_bus * bus; // The bus pointer struct usb_host_endpoint e
The Xmlweb Service-based Java API (JAX-ws) uses annotations to specify the metadata associated with a Web service implementation and simplifies the development of Web service. The comment describes how to use the server-side service implementation as a Web service access or how the Java class of the client accesses the Web service.The JAX-WS programming Standard supports commenting on a Java class with metadata that defines the service endpoint applic
In 1991, one introduced the concept of pipelines in Linux and used pipelines in many places, such as file systems and device drivers. So we can see that there are various pipelines in Linux. But the same thing is that all pipelines are used to transmit things, but some pipelines transmit real material while some pipelines transmit data.
The pipe we see in the USB code is used for data transmission and communication. Communication is from both parties, and it is impossible to speak to yourself.
at How to configure Database mirroring : This should be the people feel very excited, because listen to me west to pull the talk for half a day. Finally no longer have to suffer. In fact, the configuration is very simple, just pay attention to a few steps on the line.
preparing A mirrored database to prepare a mirrored database on the mirror server
To create a database mirroring endpoint to configure the mirroring
Protocol: streamprotocol singleopprotocol multiplexprotocol
Streamprotocol: 0x4b
Singleopprotocol: 0x4c
Multiplexprotocol: 0x4d
Messages: Message messages Message
Messages will be packaged in a specific protocol specified by protocol. For singleopprotocol, heA message may be followed by one message, and the message does not wrap other data. SingleOpprotocol is used for Embedded calls in HTTP requests. Both requests and responses can be one request.
For streamprotocol and multiplexprotocol, the
I. Overview of the ContentUsing STM32 internal USB controller outside the larger page NAND FLASH k9f1g08u0a implementation of a 128M u disk.1, STM32 USB controller stm32f103of theMCUcomes withUSBfrom the controller, in accordance withUSBspecification of communication connections;PCThe data transfer between the host and the microcontroller is accomplished by sharing a dedicated data buffer that can beUSBdirect access to peripherals. The size of this dedicated data buffer is determined by the n
USBDescriptor
The USB descriptor information is stored in the USB device. During the enumeration process, the USB Host sends a getdescriptor request to the USB device. After receiving the request, the USB descriptor information is returned to the USB host. The data returned by the USB host is analyzed to determine which USB device is used and a data link channel is established. What kind of data is the USB descriptor? The USB protocol has a detailed description.
General USB descriptors include
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.