femtocell device

first, device-driven layered thinking: Take platform device drive, input device driver as an example to see how they embody the layered ideology"1" at the core level: A class of device bus common features, if a device supported by the bus comparison can not use these feature

Transfer from http://www.ibm.com/developerworks/cn/linux/l-cn-networkdriver/Network Equipment IntroductionNetwork equipment is an essential part of computer architecture, and if the processor wants to communicate with the outside world, it usually chooses the network device as the communication interface. As is known to all, in the OSI (open Systems Interconnection, open Internet interconnection), the network is divided into seven levels, from bottom

○ DescriptionNote is applicable to linux kernels later than 2.6.10.Take note of the scull program provided by Linux Device driver3 (main. C and scull. h) as the record main line, and in the order of various system calls and function call flows in the driver. For example, module_init () and module_exit () are a pair of system calls, which are generally discussed together in books, but not in this note, therefore, module_init () is placed at the beginni

Original URL: http://www.cnblogs.com/biglucky/p/4059582.html The three main members of Linux I²C subsystem I2c_adapter, I2c_driver and I2c_client are briefly described in (a). The relationship of the three is also described in the previous section. There should be a preliminary understanding of the Linux I²c subsystem. The following further analysis of their relationship to the code layer, I think the better the understanding of their relationship, the more conducive to the development

USB Device Request Command: Bmrequesttype + brequest + wvalue + Windex + wlength Number Value Name (0) 0 Get_status: Used to return the status of a specific recipient(1) 1 clear_feature: To remove or prohibit certain features of the receiver (x) 2 for future retention(2) 3 set_feature: Some of the features used to enable or activate the command receiver (x) 2 for future retention(3) 5 set_address: Used to assign an address to a

Combinergn Combine two areas into a new zone Combinetransform Drive the world to transform. It's equivalent to two conversions in sequence. CreateCompatibleDC Create a memory device scenario that is consistent with a specific device scenario CreateDC Create a device scene for a specialized

In this paper, the concept of udev and related terminology, udev configuration files and rules files are expounded in a popular way, and some examples of managing device files and querying device information are presented on the platform of Red Hat Enterprise Server. This article will benefit users who need to manage Linux devices efficiently and easily, including Linux end-users,

1. Background Sampleblk is a Linux block device drive project for learning purposes. One of the Day1 source code to achieve a minimalist block device driver, the source codes only more than 200 lines. This article mainly revolves around these source code, discusses the Linux block device drive development the basic knowledge. Developing a Linux driver requires a

Overview: Linux users often have difficulty identifying device names of the same type, such as eth0, eth1, sda, and sdb. By observing the kernel device names of these devices, users usually know what types of devices they want, but do not know which devices they want. For example, in a device name list filled with ephemeral disks and Fiber-Optic Disks (/dev/sd*),

User Space Device ManagementAll the devices that the user space sees are placed in the/dev directory (of course, just a directory, which can be changed), and the partition where the file system resides is also placed in that directory as a separate device. The previous version of the 2.4 has been DEVFS, this idea is very good, in the kernel to achieve dynamic management of disk devices. It can be done when

1, what bare equipment? Character device? Block device?Bare devices: Also called bare partitions (raw partitions), is a special character device that is not formatted and is not unix/linux by the file system to read. A bare device, also called a bare partition (raw partition), is a special character

Overview: Linux users often find it difficult to identify the same type of device name, such as Eth0, Eth1, SDA, SDB, and so on. By observing the kernel device names of these devices, users usually know what type of device they are, but they don't know which device they want. For example, in a list of

Linux systems integrate devices and drivers into device-driven models to manageDevice driver Features:1, initialization and release of hardware devices2, manage the device, including the parameter setting, and provide the unified operation interface to the device.3. Read the data that the application passes to the device