int drv_getparm(unsigned int parm, void *value_p);
In previous releases, value_p was defined as type
unsigned long. In the 64-bit kernel, drv_getparm(9F) can fetch both 32-bit and
64-bit quantities. The interface does not define data types of these quantities, and simple programming errors can occur.
The following new routines offer a safer alternative:
clock_t ddi_get_lbolt(void); time_t ddi_get_time(void); cred_t *ddi_get_cred(void); pid_t ddi_get_pid(void);
Driver writers are strongly urged to use these routines instead of drv_getparm(9F).