PP_IOCTL
#define PPGETTIME32 _IOR(PP_IOCTL, 0x95, s32[2])
#define PPSETTIME32 _IOW(PP_IOCTL, 0x96, s32[2])
#define PPGETTIME64 _IOR(PP_IOCTL, 0x95, s64[2])
#define PPSETTIME64 _IOW(PP_IOCTL, 0x96, s64[2])
#define PPSETMODE _IOW(PP_IOCTL, 0x80, int)
#define PPRSTATUS _IOR(PP_IOCTL, 0x81, unsigned char)
#define PPWSTATUS OBSOLETE__IOW(PP_IOCTL, 0x82, unsigned char)
#define PPRCONTROL _IOR(PP_IOCTL, 0x83, unsigned char)
#define PPWCONTROL _IOW(PP_IOCTL, 0x84, unsigned char)
#define PPFCONTROL _IOW(PP_IOCTL, 0x8e, struct ppdev_frob_struct)
#define PPRDATA _IOR(PP_IOCTL, 0x85, unsigned char)
#define PPWDATA _IOW(PP_IOCTL, 0x86, unsigned char)
#define PPRECONTROL OBSOLETE__IOR(PP_IOCTL, 0x87, unsigned char)
#define PPWECONTROL OBSOLETE__IOW(PP_IOCTL, 0x88, unsigned char)
#define PPRFIFO OBSOLETE__IOR(PP_IOCTL, 0x89, unsigned char)
#define PPWFIFO OBSOLETE__IOW(PP_IOCTL, 0x8a, unsigned char)
#define PPCLAIM _IO(PP_IOCTL, 0x8b)
#define PPRELEASE _IO(PP_IOCTL, 0x8c)
#define PPYIELD _IO(PP_IOCTL, 0x8d)
#define PPEXCL _IO(PP_IOCTL, 0x8f)
#define PPDATADIR _IOW(PP_IOCTL, 0x90, int)
#define PPNEGOT _IOW(PP_IOCTL, 0x91, int)
#define PPWCTLONIRQ _IOW(PP_IOCTL, 0x92, unsigned char)
#define PPCLRIRQ _IOR(PP_IOCTL, 0x93, int)
#define PPSETPHASE _IOW(PP_IOCTL, 0x94, int)
#define PPGETTIME _IOR(PP_IOCTL, 0x95, struct timeval)
#define PPSETTIME _IOW(PP_IOCTL, 0x96, struct timeval)
#define PPGETMODES _IOR(PP_IOCTL, 0x97, unsigned int)
#define PPGETMODE _IOR(PP_IOCTL, 0x98, int)
#define PPGETPHASE _IOR(PP_IOCTL, 0x99, int)
#define PPGETFLAGS _IOR(PP_IOCTL, 0x9a, int)
#define PPSETFLAGS _IOW(PP_IOCTL, 0x9b, int)