The
ncrsc driver provides an abstraction layer between the SCSI hardware fitted to Motorola MVME167 and MVME177 single board computers (NCR73C710), and the machine independent SCSI drivers described in
scsibus(4).
In addition to sending the required SCSI commands to target devices on the SCSI bus, the
ncrsc driver deals with DMA, device interrupts, sync/async negotiation and target disconnects/reconnects.