14.1.3 Block Device
14.1.3.1 Block Device Characteristics
The block device inputs and outputs data in unit of block when processing data in the device, and increases the processing performance by placing a intermediate buffer.
Raspberry Pi_Eng_14.1.2 Character Device
14.1.2 Character Device
14.1.2.1 Charateristics
The character device is the simplest of all Linux devices, and it inputs and outputs data in character unit when processing data in the device, and there is no intermediate buffer.
Raspberry Pi_Eng_14.1.1 Device Type and “/dev” Directory
14.1 Device Overview
14.1.1 Device Type and “/dev” Directory
In the devices used in Linux, there are character device such as keyboards, block device such as disk, and network device such as Ethernet.
Raspberry Pi_Eng_14.0 Chapter 14 Understanding Device
Chapter 14 Understanding Device
Chapter’s Main Topics
This charpter describes the various device available on Linux systems and the “/dev” file that contains information about these devices, and describes the characteristics of USB device.
It includes descriptions on the following topics:
■ Device type and “/dev” directory
■ Character device
■ Block device
■ Network device
■ Usb device