skedaddle bus

===============================This article is the original site, welcome to reprint!Reprint please indicate the source: http://www.cnblogs.com/gdt-a20 =============================== The kernel developer will be the bus, device, drive the three are abstracted from the software idea, cleverly established the relationship between the two, make it more visualization. Combined with the knowledge that we have learned before, in general, the relationship b

After the Linux PC/mobile phone is started, the kernel-daemo is started. If a program is started, a connection will be mounted to executor-daemon, and the service of the program is maintained. You can run the send-send command to check which services are mounted on the system bus or session bus, that is, which programs are currently mounted. Is associated with your-daemon: 1. view the service mounte

Open Alipay "City Service", click on "Bus Payment" (First use need to click "Open immediately"), will generate two-dimensional code on the bus card reader scan, hear "ding dong" sound after the completion of payment! Currently, Hangzhou No. 506 Bus line is being piloted. This function is actually very simple like we are in the phone to brush the payme

Test instructions: To a number of attractions, each attraction has a number of one-way side to other attractions, require planning for bus routes, so that each attraction has a car to reach, and each attraction can only have 1 cars through 1 times, the bus must go back to the starting point of the ring (starting point 2 times). Ask if there is such a line? If there is the length of the road that all the bus

); G_value_set_boolean (return_value, v_return ); } G_end_decls # Endif/* _ dbus_glib_marshal_com_wei_marshal_h __*/ # Include Static constDBusGMethodInfo Dbus_glib_com_wei_methods [] = { {(Gcallback)Com_wei_test , Dbus_glib_marshal_com_wei_boolean _ uint_pointer_pointer, 0 }, }; ConstDBusGObjectInfo Dbus_glib_com_wei_object_info = { 0, Dbus_glib_com_wei_methods, 1, "Com. Wei. myobject. Sample/0 test/0 s/0x/0i/0u/0d_ret/0o/0f/0n/0d/0/0/0 ", "/0 ", "/0" }; Step

In the front of "talking about I2C bus" and "talking about the SPI Bus", we introduce the I2C, SPI Bus for the short transmission distance, simple protocol, small amount of data, mainly for IC (integrated circuit) communication between the "lightweight" occasions. But can bus is different, can

Springcloud (ix): Configuration Center and message bus (configuration center finalization)In Springcloud (vii): Configuration Center svn example and refresh, refresh we can use the mechanism of Webhook to flush the client each time the client gets the latest configuration information if it needs to be executed, and when clients are getting more and more , which requires each client to be executed again, this scenario is less appropriate. Using spring

I became a blog expert after finishing the original embedded Linux Series blog post, now launched to let more readers benefit."Understanding the Linux series from a demand perspective: bus, device, and drive" is a methodological article on how to learn embedded Linux systems, and the beginning of understanding Linux system software from the perspective of demand, expecting this series of articles to be the benchmark for learning Embedded Linux in the

Bus tycoon task Audit completed, small part of the 24 hours before the completion of the audit, in fact, the actual audit faster, the task of the morning, now has received the results, show the audit through, then now can go to the present, and then the small series to experience. 1, the bus monopoly how to complete the task, we can refer to the previous experience of small series, the following figure i

Since I bought a car, I seldom take the bus. However, the perception of the bus for a long time, these daily Mercedes-Benz in the city on the road of the big guys, year after day, without a clear say to carry who on the road, but does not affect them always on schedule from the starting point, shun smooth to reach the end. Share a little bit about bus and softwar

Absrtact: This paper introduces the interaction and coupling problems in the process of informatization construction of modern enterprises, expounds the solution of service-oriented enterprise application--ESB Enterprise Service Bus, gives the detailed design of this solution, and presents the implementation example. Keywords: service oriented; enterprise solution; Enterprise Service Bus Middle Figure categ

Simple Bus transfer algorithm: Three tables (most simplistic, do not consider fuzzy query, one-way street and other things):1, the Site table Stop (stop_id,stop_name)2, route table line (line_id,line_name)3, Route site table (point line Relational table) Linestops (line_id, stop_id, seq) the SEQ here refers to the order of a site in a line. Now analyze the algorithm:1, Direct LineFirst of all, according to two site names to obtain the respective IDs o

Some time ago to implement a RABBITMQ message bus, the implementation of the process itself is also constantly have to think, summarize and revise. You need to consider the various dimensions: efficiency, performance, network, throughput, and even the ability to envision the possible use of the API scenarios, patterns. But can have one thing, oneself willing to do, walk, eat, take a bus when all thinking ho

Four drive units: the D-bus bus and S-bus bus for the CONTEXT-M3 core, the Universal DMA1, and the general purpose DMA2. Four driven units: internal Flash (internal Mountain village memory), internal SRAM, FSMC, AHB to APB Bridge Ahp2apbx. The Icode bus is the

Forwarded from: http://blog.sina.com.cn/s/blog_4af327e10101irie.htmladvantages and disadvantages of D-busLinux does not have a good IPC mechanism. Windows, Mac OS, Android also has "binder" subsystem. Linux has sockets, FIFO, shared memory and other mechanisms, which are not very good for the application layer. Kdbus attempts to create a mechanism that is similar to other systems for Linux.D-bus is the closest approach to this standard on Linux. Pros:

What does the bus do? Plainly, it is used to transfer data between parts of the computer. For example, my main memory stored in the data CPU to use, need a line to pass it, the CPU internal registers between, register and Alu, CU and various parts and so on, and so on many places, in short, the parts need to transfer data The transmitted data is divided into three kinds, corresponding to three kinds of functions of the

Time: 2016-12-12 huaqing Vision1. PrefaceThe CAN (Controller area Network) bus, which is a control LAN bus, is an effective serial communication network that supports distributed control or real-time control. It is widely used in industrial field control, intelligent buildings, medical devices, transportation and sensors due to its high performance, high reliability, unique design and suitable price, and ha

I²C transmits data between devices connected to the bus using only two lines (SDA and SCL). Each device is identified by a unique address (whether it is a microprocessor, LCD driver, memory, or keyboard interface) and can be used as a transmitter or receiver depending on the function of the device. The LCD driver may be just a receiver, and the memory can send and receive data. In addition to transmitters and receivers, the device can be used as a hos

Loaded from http://blog.csdn.net/sjwangjinbao/article/details/6077225When writing a bus device driver, it was found that the struct device in the 2.6.33.2 kernel had no members of BUS_ID, and the const char *init_name member was found. However, this member cannot be used directly to set and read the device name.The method for kernel operation is dev_name and Dev_set_name. The definition in the kernel is:1) dev_nameStatic inline const char *dev_name (c

transmitted from inside the computer to the output serial data stream. A serial that is external to the computerThe data is converted to bytes for use by devices inside the computer that use parallel data. In the output serial data stream, add theParity bit and parity with the data stream received from the outside. Add a start-stop flag to the output data stream,And remove the start-stop flag from the receiving data stream. Handles interrupt signals issued by the keyboard or mouse (keyboard and