CXUSB_VIDEO_PKT_SIZE
BUILD_BUG_ON(CXUSB_VIDEO_URB_MAX_SIZE / CXUSB_VIDEO_PKT_SIZE >
*npackets = min_t(int, (framelen + CXUSB_VIDEO_PKT_SIZE - 1) /
CXUSB_VIDEO_PKT_SIZE,
CXUSB_VIDEO_URB_MAX_SIZE / CXUSB_VIDEO_PKT_SIZE);
urblen = *npackets * CXUSB_VIDEO_PKT_SIZE;
streambuf = kmalloc_array(npackets, CXUSB_VIDEO_PKT_SIZE,
surb->transfer_buffer_length = npackets * CXUSB_VIDEO_PKT_SIZE;
CXUSB_VIDEO_PKT_SIZE * framen;
CXUSB_VIDEO_PKT_SIZE;
CXUSB_VIDEO_PKT_SIZE)