USB_FREE_URB(9)                           USB Core APIs                           USB_FREE_URB(9)



NAME
       usb_free_urb - frees the memory used by a urb when all users of it are finished

SYNOPSIS
       void usb_free_urb(struct urb * urb);

ARGUMENTS
       urb
           pointer to the urb to free, may be NULL

DESCRIPTION
       Must be called when a user of a urb is finished with it. When the last user of the urb
       calls this function, the memory of the urb is freed.

NOTE
       The transfer buffer associated with the urb is not freed unless the URB_FREE_BUFFER
       transfer flag is set.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                           USB_FREE_URB(9)