Hi all,
I want to know the details of device(not physical ram device) registers via mapped memory on /dev/mem.
For example, a Soc CPU has some internal device register resources, the driver will map the memory
block to a virtual memory to kernel. But, the user application can use /dev/mem to access it(devmem2).
I want to know why? and what's happened on the backend?
Thanks.
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