How to input req to make the simulator feedback the result?

[Faker-LL]

Hi,maintainer
I run a black box script, how do I input the ssd read/write request to get the result, do I need any other tools?
Can you tell me how to use this emulator？

[huaicheng]

You should be able to see the device "/dev/nvme0n1" (or similar), then issue I/Os (using "fio" or other IO benchmark tools) to this device will trigger the FEMU side SSD emulation logic.