. open ();
// Create a channel and bind it to port 9000Serversocketchannel SSC = serversocketchannel. open ();Inetsocketaddress address = new inetsocketaddress (inetaddress. getlocalhost (), 9000 );SSC. socket (). BIND (Address );
// Enable non-blocking.SSC. configureblocking (false );
// Register the channel and events we are interested in with SelectorSelectionkey S =
Wireless networks are available everywhere, so many of us also want to choose a suitable wireless network card, but can you tell us the types of wireless network cards? When 802.11n is officially approved, low-configuration laptops may only be compatible with 802.11a, 802.11b, or 802.11 GB, but cannot meet the new needs of the 802.11n era. At present, wireless network interfaces are widely used, and the price of wireless network interfaces is very approachable, while the performance is more powe
:00.0 Ethernet Controller:realtek Semiconductor Co., Ltd. rtl8111/8168b PCI Express Gigabit Ethernet contr Oller (Rev 06)View all network interfaces of the system# ifconfig-aeth0 link encap: Ethernet Hardware address b8:97:5a:17:b3:8f ... lo Link encap: Local loopback .....or aIP link show1:lo: If you want to view the details of a network interface, such as detailed parameters and metrics for eth0# Ethtool Eth0settin
partition distribution# lsblkname maj:min RM SIZE RO TYPE mountpointsda 8:0 0 465.8G 0 disk├─sda1 8:1 0 1gDisplay is intuitiveIf you want to see hard disk and partition details# fdisk-ldisk/dev/sda:500.1 GB, 500107862016 bytes255 heads, sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * bytessector size (logical/physical): bytes/4096 bytesi/o size (minimum/optimal): 40 bytes/4096 bytesdisk identifier:0x00023728 Device Boot Start E
282231808 83 LinuxNetwork cardViewing NIC hardware information# Lspci | Grep-i ' ETH ' 02:00.0 Ethernet Controller:realtek Semiconductor Co., Ltd. rtl8111/8168b PCI Express Gigabit Ethernet contr Oller (Rev 06)View all network interfaces of the system# ifconfig-aeth0 link encap: Ethernet Hardware address b8:97:5a:17:b3:8f ... lo Link encap: Local loopback .....or aIP link show1:lo: If you want to view the detai
==============================================================================Installed RESOURCE LISTThe following are installed on the machine.-+-= Added or deleted from Resource List.* = Diagnostic support not available.Model ARCHITECTURE:CHRPModel implementation:multiple Processor, PCI bus+ SYS0 System objects+ sysplanar0 System plane* PCI1 P1 PCI bus* Pci6 P1 PCI
Article Title: Implementation of ACPIPCIHot-Plug in Linux2. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
1. Introduction to ACPI hot plugging
The Advanced Configuration Power Interface (ACPI), developed jointly by INTEL, MICROSOFT, and toshba, enables software, hardware, and operating systems (OS ), the motherboard and peripheral devices manage power u
markets. The installation of PCI cards is relatively simple, as long as the kernel supports, the system correctly identifies the number of cards at startup. The installation of the ISA card is not complex. For details, refer to my previous article.Www.nyfzns.net www.520cat.comThe following figure shows the network interfaces that I have actually used:★Intel etherexpress pro pci100m★RealTek 8029/8139 PCI 10
This article only discusses the general Writing of network device drivers. The Code related to the hardware is omitted because of the different hardware specifications. Are there any mistakes or supplements? You are welcome to raise them.
1. Loading and uninstalling the driver moduleIf the network device (including wireless) is PCI compliant, first register the PCI device (pci_register_driver) with the kern
packets from The miniport driver, and then use the ndis api of miniport characteristics to send data packets to the proto. The biggest advantage of NIDs intermediate driver is that all the data packets of miniport driver must be handed over to protocol driver. Therefore, the network firewall is regarded as a perfect place. Nowadays, many network firewalls use the NDIS intermediate driver to filter and intercept data packets. The filtering rules are set to the mpsendpackets, ptreceive, and ptrec
uses and who is compatible with before looking for a Linux driver, such as 3c509, ne2000, and etherexpress. such models are usually printed on the largest fast chip on the network card. Just copy them.
The most common use may be the best network adapter, or the ne2000 compatibility card. I use it as an example. Note that many cheap cards are actually ne2000 compatible.
For the ne2000 card, the first thing to do is to set the NIC to jumpless mode. many NICs use the PNP mode by default, which
How to find available network adapters on Ubuntu
Do you want to know what Nic you are using in Linux? In Linux, it is easy to find the network card manufacturer. Open a terminal and enter the following command:
Sudo lshw-C network
If the above command cannot be used in sudo, do not use sudo's privileged mode. Its output looks strange but useful.
*-Network
Description: Wirelessinterface
Product: BCM4360 802.11 acWirelessNetworkAdapter
Vendor: BroadcomCorporation
Physical id: 0
Bus info
The content of ACPI is complex. Learning ACPI can at least help us understand the configuration information. This information is obtained from the configuration of the legacy PNP device, to the multi-processor, to NUMA. For example, the current Multiple Core information can only be obtained from ACPI. Many codes for Linux Startup Process the configuration information, such as Linux acpi off and IOAPIC settings.
ACPI related devices. Laptop-related devices, including power buttons, batteries, ext
1. Loading and uninstalling the driver moduleIf the network device (including wireless) is PCI compliant, first register the PCI device (pci_register_driver) with the kernel ), then, the probe function pointer in the pci_driver data structure points to the detection function to initialize the PCI device and register and initialize the network device at the same t
Starting with 2.6.13-RC3, the Linux kernel provides the ability to dynamically bind and Unbind devices and device drivers in user space. Prior to this, the insmod can only be bound and reconciled through the modprobe and rmmod, and this binding and bundling is for the driver and all devices. The new feature can set the connection between the driver and the individual device.Here, we take the NVMe SSD for PCI bus as an example, first execute LSPCI disp
Starting with 2.6.13-RC3, the Linux kernel provides the ability to dynamically bind and Unbind devices and device drivers in user space. Prior to this, the insmod can only be bound and reconciled through the modprobe and rmmod, and this binding and bundling is for the driver and all devices. The new feature can set the connection between the driver and the individual device.Here, we take the NVMe SSD for PCI bus as an example, first execute LSPCI disp
can be achieved to increase the volume of traffic
So:250mhz x 8 = 2G, or: 100MHz x = 2G
But: Obviously the width of the road is better than the number of bars, the PC is the same, generally will not use the latter formula, lower FSB will greatly affect performance.
However, FSB on some AMD CPU is inaccurate, but the theory is the same, outside the forest to note that most of the current CPU frequency is locked, can not be lowered or raised.
Some people say: understand, add FSB is finished,
CardBus Bus network adapter
Onboard NIC onboard network card
The level of the boot Post's hardware check for post: set to "minimal" (default setting) The post is checked only for BIOS upgrades, memory module changes, or previous power-on self-test. Set to "thorough" performs a full set of hardware checks at post.
Config Warnings Warning Setting: This option is used to set the alarm when the system uses a lower voltage power adapter or other unsupported configuration, set to "DISABLED" Disabl
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