hpflip

The hpflip program reads a Vendor Unique mode page from an HP Optical disk drive and toggles or "flips" the device type between OPTICAL and DIRECT ACCESS. Typically, most systems include drivers that can deal with removable DIRECT ACCESS device types (which are often limited to 512 byte/sector formatted disks). Systems with these device types often do not also have device drivers for OPTICAL device types. The hpflip program enables you to control how an HP Optical Disk Drive reports itself, and thus makes the OPTICAL device type available where it otherwise would have required an additional device driver.

The following example describes the format and options available for the hpflip program:

hpflip -a b.t.l [-r] 

• You must use the required -a b.t.l argument to select a specific ordinal SCSI address, where "b" is the logical SCSI bus, "t" is the SCSI target, and "l" is the SCSI lun on that target.

• Use the -r option to reset the named device to OPTICAL, regardless of its current state. If you do not specify the -r option, the device type simply changes to the opposite of the current state.