www patience spelen USB is a subsystem in the Linux kernel, and utilizes a message passing paradigm. These messages are known as URBs (USB Request blocks). These requests can be sent by calling the usb_submit_urb with the following parameters usb_submit_urb(struct urb*, int mem_flags). The urb* structure pointer contains the information necessary to complete the request.
tierp-söderfors online dating One can also cancel a URB by utilizing the usb_unlink_urb() method. Similar to most older C style code, a URB must be allocated using usb_alloc_urb(), and freed using usb_free_urb(). You can find the structure above in the usb.h header file which resides under include/usb/ in the kernel source.