Operating systems, development tools, and professional services
for connected embedded systems
for connected embedded systems
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usbd_free_urb()
Free the USB Request Block allocated by usbd_alloc_urb()
Synopsis:
#include <sys/usbdi.h> struct usbd_urb *usbd_free_urb( struct usbd_urb *urb );
Arguments:
- urb
- A pointer to the URB to be freed.
Library:
libusbdi
Description:
The usbd_free_urb() function frees the memory allocated by usbd_alloc_urb().
Returns:
- EOK
- Success.
Classification:
| Safety: | |
|---|---|
| Cancellation point | No |
| Interrupt handler | No |
| Signal handler | No |
| Thread | Yes |
See also:
usbd_alloc(), usbd_alloc_urb(), usbd_free(), usbd_mphys()
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