Typedefs starting with `h' in bsd/dev/ppc/drvUSBCMD

• Handle bsd/dev/ppc/drvUSBCMD/mactypes.h:255
• HFileParamPtr bsd/dev/ppc/drvUSBCMD/files.h:782
• HIOParamPtr bsd/dev/ppc/drvUSBCMD/files.h:753
• HParmBlkPtr bsd/dev/ppc/drvUSBCMD/files.h:1058
• HVolumeParamPtr bsd/dev/ppc/drvUSBCMD/files.h:819