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Get the physical address of memory allocated by usbd_alloc()
#include <sys/usbdi.h>
paddr_t usbd_mphys( const void *ptr );
- ptr
- A pointer to the block of memory.
libusbdi
The usbd_mphys() function obtains the physical
address used by usbd_alloc() to
allocate memory for a data transfer.
Physical address.
QNX Neutrino, QNX 4
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
No |
Thread |
Yes |
usbd_alloc(),
usbd_alloc_urb(),
usbd_free(),
usbd_free_urb(),
usbd_mphys()
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