ppb_sleep
if (ppb_sleep(ppbus, lptdev, LPPRI | PCATCH, "lptinit",
if (ppb_sleep(ppbus, lptdev, LPPRI | PCATCH, "lpclose",
err = ppb_sleep(ppbus, dev, LPPRI,
if ((err = ppb_sleep(ppbus, lptdev,
extern int ppb_sleep(device_t, void *, int, const char *, int);
ppb_sleep(ppbus, ppi, PPBPRI, "ppiread", 2 * hz);
error = ppb_sleep(ppbus, ppi, PCATCH | PPBPRI, "ppiwrite", 0);