Write a 16-bit value to a port
#include <hw/inout.h>
void out16( uintptr_t port,
uint16_t val );
#define outbe16( port,
val ) ...
#define outle16( port,
val ) ...
BlackBerry 10.0.0
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The out16() function writes the native-endian 16-bit value, specified by val, to the specified port.
The outbe16() and outle16() macros write the native-endian 16-bit value, specified by val, to the specified port in big-endian or little-endian format, respectively.
| Safety: | |
|---|---|
| Cancellation point | No |
| Interrupt handler | Yes |
| Signal handler | Yes |
| Thread | Yes |
The calling thread must have the PROCMGR_AID_IO ability enabled and must have I/O privileges; see procmgr_ability() , and ThreadCtl() 's _NTO_TCTL_IO command for details.
The calling process must also use mmap_device_io() to access the device's I/O registers.
outbe16() and outle16() are implemented as macros.