| USTORE(9) | Kernel Developer's Manual | USTORE(9) | 
ustore, ustore_8,
  ustore_16, ustore_32,
  ustore_64, ustore_char,
  ustore_short, ustore_int,
  ustore_long, ustore_ptr
  —
#include <sys/systm.h>
int
  
  ustore_8(const
    uint8_t *uaddr, uint8_t
    val);
int
  
  ustore_16(const
    uint16_t *uaddr, uint16_t
    val);
int
  
  ustore_32(const
    uint32_t *uaddr, uint32_t
    val);
int
  
  ustore_64(const
    uint64_t *uaddr, uint64_t
    val);
int
  
  ustore_char(const
    unsigned char *uaddr,
    unsigned char val);
int
  
  ustore_short(const
    unsigned short *uaddr,
    unsigned short val);
int
  
  ustore_int(const
    unsigned int *uaddr,
    unsigned int val);
int
  
  ustore_long(const
    unsigned long *uaddr,
    unsigned long val);
int
  
  ustore_ptr(const
    void **uaddr, void
    *val);
ustore functions provide a way to store a value to
  single memory cells in user-space. In each case, the value
  val is stored in the user-space memory location
  referenced by uaddr.
The ustore_64 function is only available
    on systems employing the ‘LP64’ memory model, which can be
    determined by testing for the presence of the _LP64
    C preprocessor macro.
ustore functions return 0 on success and an error
  number on failure.
| March 18, 2019 | NetBSD 9.3 |