Learn about bus alsa, we have the largest and most updated bus alsa information on alibabacloud.com
Relationship between bus, device, and driver in Linux 1. Bus: As the connection channel between the host and peripherals, some buses are relatively standard and form many protocols. Such as PCI, USB, 1394, and IIC. Any device can select a suitable bus to connect to the host. Of course, the host may be the CPU itself. The memory is also connected to the host throu
8.5 system bus Optimization The system bus service requests a bus proxy (such as a logic processor) to obtain data or code from the memory subsystem. The performance impact caused by retrieving data traffic from the memory depends on the features of the workload, and the degree to which the software optimizes access to the memory, and the position implemented in
Intel's QuickPath Interconnect technology is abbreviated as QPI, which translates to fast channel interconnection. In fact its official name is called the Csi,common System interface public interface, used to achieve direct interconnection between chips, rather than connecting to the North Bridge via FSB, directed at AMD's HT bus. Regardless of speed, bandwidth, the bandwidth of each stitch, power consumption and other specifications are beyond the HT
Preface: Otto Event Bus-the communication framework between components for the previous situation between the activity or fragment between the jump value is generally used bundle, intent, etc., from Activitya--- Activityb with StartActivity, with Startactivityforresult () can accept the latter to the former parameters and can do some updates UI and other operations. This is to determine which of the buttons from a jumps to B, set a unique identifier t
Many Ford and Mazda models (approximately since 2003-2004) is equipped with MS CAN bus, in addition to the regular HS CAN Bus. In contrast to HS can bus, MS can bus isn't supported by the stock ELM327, because Ms can is a manufacturer-specific solu tion and located on non-obd2 pins. However, ELM327 is very flexible too
Author: Yang Shuo,Hua Qing vision embedded college lecturer. 1. Concept of Bus In computer systems, different subsystems must have interfaces to connect to each other. For example, the memory and processor need to communicate, and the processor and I/O devices also need to communicate. These tasks are completed by the bus. A bus is a shared communication link tha
This article introduces Recently, CPCI was used in the project, and the information about PCI was collected online. CPCI is a subset of PCI. The bridge chip used is divided into two types: master and slave. As for PCI, I will describe it as follows: With the rapid development of Windows Graphical User interfaces and the wide application of multimedia technology, the system requires high-speed graphic processing and I/O throughput, this makes the original ISA and eisa
Abstract: This paper introduces the specifications and features of the PXI bus, the features, functions and usage of the plx9030 chip, and provides the use of plx9030 interface chip, hardware and software implementation method of A/D data acquisition card based on PXI specification.Key words: PXI bus; plx9030; A/D data collection The PCI extension for instrumentation bu
Nowadays, there is no uniformity in the naming of the same thing on the Internet. It seems like there are many types of things, so it is necessary to clarify the clues first, find out the equivalence relationships between different names: 1. CPU external frequency = External frequency 2. CPU frequency = clock speed 3. Frontend bus frequency 4. System bus frequency 5. MultiplierRelationships: The externa
Driven:Taking Sdio as an example, it uses Mmc_attach_sdio to match the driver and the device, and its essence is to match the Sdio_bus matching rules. In Mmc_attach_sdio, the MMC first matches a bus, that is, what bus to use for the MMC bus to process host. One thing to understand here is that in Sdio, for SD card memory MMC is a physical device, and for non-SD c
3. Sightseeing bus (Bus.cpp/c/pas)"Problem description"The charming small city of Y City, has n a beautiful scenic spot. Because of the increasing number of visitors, Y City SpecialArranged a sightseeing bus, to provide more convenient transportation services for tourists. The sightseeing bus appears at 1 in the first 0 minutes.Attractions, followed by the 2, 3,
I2C (Inter-IntegratedCircuit1 bus is a 2-line serial bus developed by Philips, used to connect 1 Introduction I2C (Inter-Integrated Circuit1 bus is a two-line serial bus developed by Philips to connect the microcontroller and its peripheral devices. It is a special form of synchronous communication. it has the advantag
The D-Bus method is very important in mobile phone operating systems, including Linux-based operating systems such as Maemo and Moblin. It is estimated that Andriod is also widely used. For more information about D-Bus, see http://www.freedesktop.org/wiki/Software/dbus. , There are a lot of learning materials on the Internet, in http://blog.chinaunix.net/u3/111961/ There are a lot of Chinese materials and
I believe that most of the fans are not unfamiliar to Alipay, in particular, the net to buy people, now Alipay in everyone's quick to use more and more widely used, and now it can be filled with bus cards, the following for everyone to pay the Po-filled bus card method, want to know how it can be filled with public transport cards to refer to. Note: Mobile phones must be NFC, it is reported that at present
Registering a SDIO driver will call the following function: /*** Sdio_register_driver-register a function driver* @drv: SDIO function Driver*/int sdio_register_driver (struct sdio_driver *drv){Drv->drv.name = drv->name;Drv->drv.bus = sdio_bus_type;Return Driver_register (DRV->DRV);} In fact, very good understanding sdio_driver is actually driver encapsulation, and the driver bus for Sdio_bus_type. The drive of this device is very simple. Look at the s
pc/104 bus brief pc/104 is a specially designed for embedded Control-defined industrial control bus, is a derivative product of PC bus in embedded applications, a stack-type structure, widely popular in the world, is defined by IEEE Association as ieee-p996.1. We know that ieee-p996 is pc/xt and pc/. At
widely heard. for programming in Linux or windows, the addresses operated by the program are all virtual addresses. Virtual Address is a combination of hardware MMU and Software Memory Management to facilitate more efficient use of RAM. Memory Management is a big article. I will not talk about details here. For details, refer to the memory addressing chapter of utlk. Logical Address virtual address can be operated by software developers Based on System Programming and bare coding. 3. physical
Hardware Design of Image Processing Platform Based on PCI Bus and DSP chip [Date:] Source: Electronic Technology Application Author: Kong Xianggang, Zhu Jing [Font:Large Medium Small] With the rapid development of computer, multimedia and data communication technologies, digital image technology has gained great attention and development in recent years, it has been widely used in scientific research, industrial production, medi
Bt/emule Download --> free bt Download bt software Download Bus No. 8th BT Download 1 Bus No. 8th BT Download 2 Bus No. 8th BT Download 3
The message bus and activity system penetrate into the Linux desktop-general Linux technology-Linux programming and kernel information. The following is a detailed description. D-BUS is a promising message bus and activity system that is starting to penetrate into Linux®Desktop. Understand the reason for creating it, its purpose, and development prospects. D-
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
