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Can somebody explain to me what is a character driver? Can somebody explain to me what is a character driver? Can somebody explain to me what is a character driver?

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A "character driver" is a "character device driver", a device driver for a character device (such as a terminal). A "character device" is a special device which is intended for programs to read and/or write in one or more characters. Any Unix-like system has those present as special devices in /dev.

For example:

/dev/console
/dev/tty
/dev/null
/dev/zero

The device driver is the program which makes the special device work.

Further reading:

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