How to use pre-defined read/write in Jetson TX2?

Through the Jetson TX2 Kernel, I confirmed that the Jetson TX2 Board reads / writes via Stop Command.
I would like to change the kernel to perform Pre-Defined Read / Write, but I’m not sure which part to change.
Which part should I change?

Not really understand your question. Please have more detail should be greate.
Remove below topic let stick on this topic.

The eMMC of the Jetson TX2 Board knows that Pre-Defined Operation is not used when reading or writing data. (CMD18, CMD12)
I would like to know how to use Pre-Defined Operation (CMD18, CMD25, CMD23) when reading or writing eMMC data.