SCSI Adapter completion code

The SCSI Adapter Completion Code is the code that is returned by the device driver when the SCSI command is completed. These codes are shown in Table 1.

Table 1. SCSI Adapter Completion Code
Completion Code Contents	Description
00	Command completed without error.
21	Adapter command tag already in use, prior command with this tag not completed.
24	SCSI CDB byte count error.
25	Invalid SCSI ID.
41	Adapter data buffer pointer conflict.
42	Adapter data buffer pointer conflict.
43	Adapter DMA error.
44	SCSI bus parity error.
45	SCSI device disconnected on odd byte boundary.
47	Adapter unsuccessful in selecting target.
48	SCSI status byte not received from device.
81	Adapter detected differential sense fault.
82	Adapter detected bad SCSI terminator power.
83	Adapter detected SCSI bus timeout.
84	Adapter detected timeout.