I got confused when people use kernel module and driver interchangeably. For an example, from nvidia.com you can download Linux Display Driver NVIDIA_lernel-1.0-2960.rh73up.rpm. After compilation, the NVdriver will be copied to /lib/modules/2.4.18-3/kernel/drivers/video/ directory. I also notice there is nvidia_drv.o in /usr/X11R6/lib/modules/drivers/ directory.
How and when term kernel module should be used? Is it synonym of device driver? Should each device driver has a corresponding kernel module under /lib/modules/?
Thanks,
-Hong
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