| Function Name | Purpose | Page |
|---|
| ds_ctostr | Look up a string in a table using an integer key. | page 95 |
| ds_vtostr | Look up a string in a table using an integer key. | page 95 |
| dsopen | Open a device special file and allocate a dsreq for use with it. | page 92 |
| dsclose | Free the dsreq structure and close the device. | page 92 |
| doscsireq | Perform an operation on a device as specified in a dsreq. | page 93 |
| filldsreq | Set values in fields of a dsreq structure. | page 93 |
| fillg0cmd | Set up the dsreq structure for a group 0 SCSI command. | page 94 |
| fillg1cmd | Set up the dsreq structure for a group 1 SCSI command. | page 94 |
| inquiry12 | Issue an Inquiry command and retrieve information from the device concerning such things as its type. | page 96 |
| modeselect15 | Issue a group 0 Mode Select command to a SCSI device. | page 96 |
| modesense1a | Send a group 0 Mode Sense command to a device to retrieve a parameter page from the device. | page 97 |
| read08 | Issue a group 0 Read command in disk-drive form. | page 98 |
| readextended28 | Issue a group 1 Read command in disk-drive form. | page 98 |
| readcapacity25 | Issue a Read Capacity command. | page 99 |
| requestsense03 | Issue a Request Sense command and test or probe for the device. | page 100 |
| reserveunit16 | Issue a Reserve Unit command. | page 100 |
| releaseunit17 | Issue a Release Unit command. | page 100 |
| senddiagnostic1d | Issue a Send Diagnostic command to test if the device or the SCSI bus is online, or run a self-test on the device. | page 101 |
| testunitready00 | Issue a Test Unit Ready command to the SCSI device. | page 102 |
| write0a | Issue a group 0 Write command to the SCSI device. | page 102 |
| writeextended2a | Issue an extended Write command to the SCSI device. | page 102 |