Lines Matching defs:ring_head
143 unsigned int ring_head;
267 __func__, dev->ring_head, dev->ring_tail);
268 next_ring_head = (dev->ring_head + 1) % ring_buffer_size;
271 memcpy(&((*dev->ring_buffer)[dev->ring_head]),
273 dev->ring_head = next_ring_head;
362 dev->ring_head = 0;
462 if (dev->ring_head != dev->ring_tail)
500 while (dev->ring_head == dev->ring_tail) {
518 while ((c < count) && (dev->ring_tail != dev->ring_head)) {
528 __func__, dev->ring_head, dev->ring_tail);