Network Port Literacy One: Network card preliminary understandingThe network adapter is also known as a NIC or network interface card (NIC), and the English name is Interface Card. It is a device that makes computers networked. What is commonly referred to as a NIC is the network adapter that connects the PC to the LAN
control and media access control, as well as a unique hardware address, MAC address, and a cache on the NIC. The network card must be assigned interrupt IRQ and basic I/O port address, The base memory address and transceiver (transceiver) must also be set
Network card control chip: The most important component of the network
Article Title: how to set serial port multi-user card in Linux. 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.
OS: RedHat 6.1
Hardware: serial port multi-user card
Serial
Ubuntu Server default is not to enable the wireless network card, think of how the actual server can have wireless network card, hehe. So we need to manually enable the wireless card, the difficulty is here.Using the Ifconfig command, it is found that there is no WLAN port, but using1. Sudo lshw-numeric-class network2.
Use XILINX and ModelSim in LINUX and set the PCMCIA to serial port card-Linux Enterprise Application-Linux server application information. For more information, see the following. This document is mainly based on how to use XILINX in gentoo-wiki. I have made some modifications to apply to the amd64 architecture and require that the gentoo configuration be multilib, because the latest ise 9.2i webpack versio
Function: tcsetattr (fd,tcsanow,newtio)
Open serial port is also successful, one into this serial port Setup function, the program is stuck to death, out of;
If FD is occupied, it must be open is failed, you can use PID to see what resources the process occupies: ls-l/proc/304/fd;
Solve:
I tried a lot of the open parameters, I used the attribute o_noctty to open, accidentally found, no
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