Mass Storage Device Drivers [cracked] -

Sets up DMA transfers to move data directly between device and system memory without CPU involvement. Driver must allocate DMA buffers, ensure cache coherency, and handle scatter-gather lists.

This allowed for Native Command Queuing (NCQ), where the drive could reorder commands internally to optimize seek times, requiring the driver to support up to 32 concurrent commands. mass storage device drivers

Many modern drivers are —e.g., a USB flash drive uses usb-storage + scsi_mod + sd_mod . Sets up DMA transfers to move data directly