usb_fill_int_urb — macro to help initialize a interrupt urb
void usb_fill_int_urb ( | struct urb * | urb, |
| struct usb_device * | dev, | |
| unsigned int | pipe, | |
| void * | transfer_buffer, | |
| int | buffer_length, | |
| usb_complete_t | complete_fn, | |
| void * | context, | |
| int | interval); |
urbpointer to the urb to initialize.
devpointer to the struct usb_device for this urb.
pipethe endpoint pipe
transfer_bufferpointer to the transfer buffer
buffer_lengthlength of the transfer buffer
complete_fnpointer to the usb_complete_t function
contextwhat to set the urb context to.
intervalwhat to set the urb interval to, encoded like the endpoint descriptor's bInterval value.
Initializes a interrupt urb with the proper information needed to submit it to a device. Note that high speed interrupt endpoints use a logarithmic encoding of the endpoint interval, and express polling intervals in microframes (eight per millisecond) rather than in frames (one per millisecond).