parport_pc_frob_control
parport_pc_frob_control(pb, 0x20, 0x20);
parport_pc_frob_control(pb, 0x10, 0x10);
parport_pc_frob_control(port, PARPORT_CONTROL_STROBE, 0);
parport_pc_frob_control(port,
.frob_control = parport_pc_frob_control,
#define parport_frob_control(p,m,v) parport_pc_frob_control(p,m,v)