DeviceDateien
DeviceDateien, or device files, are special files found in Unix-like operating systems that provide interfaces to hardware devices or kernel subsystems. They do not store user data themselves; instead, they serve as access points through which software can perform input, output, or control operations with the corresponding hardware or driver.
There are two main types: character devices and block devices. Character devices handle data as a stream,
Creation and management of device files has evolved. Traditionally, they could be created with the mknod command
Interaction with device files occurs through standard system calls such as open, read, write, and ioctl (for