參考原文：http://www.tldp.org/HOWTO/text/Module-HOWTO

15.7. Miscellaneous Device Driver15.7.1. misc: device driver for "miscellaneous" character devicesA whole bunch of device types that don't appear in large enough numbers on a system to deserve major numbers of their own share Major Number 10 and are collectively called "miscellaneous" character devices. This module provides the common interface to serve that major number, but there are individual drivers for the specific device types. Those drivers register themselves with this driver.Example: +---------------------------------------------------------------------------+ |modprobe misc | +---------------------------------------------------------------------------+There are no module parameters. -----------------------------------------------------------------------------
簡單翻譯就是一些用的不是很多的器件沒必要每個都占用一個主設備號，這樣容易導致主設備號不夠用，所以講這些“其它”設備都統一用一個主設備號10，提供了統一的驅動接口，但是每個器件擁有獨立的驅動程序。

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