femtocell device

about how to write a misc device, in the previous article has introduced the approximate process, now let us implement a simplest Misc device driver. http://blog.csdn.net/morixinguan/article/details/52700146The following four articles about the preceding character device can be used as a reference:http://blog.csdn.net/morixinguan/article/details/55002774http://bl

Linux Device driver inductive summary (eight): 3. The layering and object-oriented thought of equipment management Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx The previous section describes the relationships and operations of the bus, device, and driver functions. Starting from this section, we introduce the layered thinking and object-oriented thinking in equipme

Tags: important contex ICA mod options map kernel variable EALLinux network devices are different from character devices and block devices, and no files correspond to network devices. The application operates the network device through the socket.The network device driver belongs to the data link layer, communicates with the IP/ARP protocol, and directly operates the physical layer chip (NIC Chip). The thre

20150225 IMX257 Device Driver Model Sysfs file system knowledge Point integration (II.)2012-02-25 Li Hai alongThe day before yesterday we realized a simple Sysfs kobject driver, but did not find a lot of things do not understand, the reason is that in our work on SYSFS and Kobject do not understand, although I have been not advocating all day contact with those boring knowledge points, also has not liked to talk about too much knowledge points , but s

SPI is "Serial peripheral Interface" abbreviation, is a four-wire synchronous serial communication interface, used to connect microcontrollers, sensors, storage devices, SPI device sub-primary device and two from the device, for communication and control of the four lines are: CS Chip Selection Signal SCK Clock Signal Miso the data input from the

Memory mapping is one of the most interesting features of modern Unix systems. As for drivers, memory mappings can be implemented to provide direct access to device memory by user programs. A clear example of a mmap usage can be seen from a subset of the virtual memory areas that are viewed to the X Windows system server: Cat/proc/731/maps 000a0000-000c0000 rwxs 000a0000 03:01 282652/dev/mem 000f0000-00100000 r-xs 000f0000 03:01 282652/dev/mem 004000

In the Windows operating system, Device Manager is a tool for managing computer hardware devices, and we can use Device Manager to view the hardware devices installed on your computer, set device properties, install or update drivers, deactivate or uninstall devices, which can be said to be very powerful. But sometimes you see a fork, question mark, or exclamatio

Terms: Physical device physical device is the actual hard drive connected to the system A port port is a physical connector/adapter card connected to a physical device on the system, and many ports are programmed by the system software to enable different types of devices to be added. Device drivers are software tha

Linux Device Model Looking at the device model chapter in LDD3, I felt a bit confused. Here we will take a holistic approach. This article summarizes some content from four aspects: 1. Underlying data structure: kobject, kset. 2. linux device Model Hierarchy: bus_type, device, device_driver. 3. Integration: Simple Anal

Turn from: http://blog.chinaunix.net/uid-23795818-id-2385141.htmlWhat the host will do: Hardware and softwareThe hardware required for the host side is: USB host controller and a root hub with one or more USB ports.The SOFTWARE is: an operating system, enables device drivers to communicate with Lower-level, that access the USB drivers.A host controller is always combined with a root hub (but it is still not possible to combine the two into a single

ASP.net in the previous article I used to introduce devicespecific/choice constructs and device filters, when we were still in asp.net Define device filters and Devicespecific/choice constructs by manually encoding in the HTML view of the mobile page or in the Web.config file of the site program. However, if you are using Visual Studio 2005, we can directly use a convenient, visual way to define Devicespeci

This idea has been in the head before, recently the company's products to use, so more to do some understanding.1. Introduction to USBUSB is Universal Serial bus abbreviation, literally, is the meaning of universal serial bus. Physically, it is a pair of differential lines, connected to two devices, data transmission between each other. With the other two power supplies (5V and GND), there are altogether 4 lines.So, since there is only a pair of differential lines, then how to decide who to pass

Kernel device model (switch) This article summarizes some content from four aspects:1. Underlying data structure: kobject, kset.2. Linux Device Model Hierarchy: bus_type, device, device_driver.3. Integration: Simple Analysis of PCI Device Driver Model instances and devices and dev