The c7xx host adapter driver enables SDI-compliant target SCSI drivers (such as sd01 and st01) to communicate on the SCSI bus with target controllers and logical units. This allows normal access to mass-storage devices using standard system interfaces and filesystems.
You can access the SCSI-bus subsystem directly by using the driver's pass-through interface. This allows the user to issue sb control blocks directly to a SCSI target device. To find the appropriate pass-through device to use for a particular target device, the user should open(2) the character special file for the device in question and then issue the B_GETDEV ioctl (see ioctl(2)). The device value returned should be used to create a character special file that, when opened, can be used for pass-through (SDI_SEND) ioctl.
53c7XX SCSI Controller | Device ID |
---|---|
MCA AT&T-GIS (NCR) Dual 53c710 Host Adapter | 0x01BA |