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How to determine if a specific module is loaded in linux kernel

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I am just curious is there any way to determine if a particular module is loaded/installed.

$ lsmod lists all modules (device driver loaded).

Is there any way to check or a command that returns true/false boolean output if a module name is polled. For eg. if keyboard.o exists return true else false. I need this tip to complete my driver auto refresh program.

PS: tried modinfo. I am using busybox client in my test DUT so can you give some alternatives other than modinfo?


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