caching - manipulate on chip cache of HDD -


i'm newbie on linux kernel development. i've read i/o ports ioremap virtual memory address space.

one of specifications of hdd cache - 32mb/64mb not rare.

here's questions:

how should driver developer handle such cache?

are transparent devs?

or shall map cache kernel address space, can use them directly?

any explanation/source code appreciated.

the cache on hdd ram physically located within drive (down sata/pata/usb cable) , therefore not part of ram located on motherboard.

tbh, if struggling this, recommend bit simpler first kernel hack :-)


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