Lines Matching refs:buffer
183 struct mutex read_lock; /* Guards FIFO buffer read access. */
184 DECLARE_KFIFO(buffer, u8, 512);
415 INIT_KFIFO(client->buffer);
478 if (kfifo_is_empty(&client->buffer)) {
485 !kfifo_is_empty(&client->buffer) ||
507 status = kfifo_to_user(&client->buffer, buf, count, &copied);
536 if (!kfifo_is_empty(&client->buffer))
609 if (likely(kfifo_avail(&client->buffer) >= len))
610 kfifo_in(&client->buffer, (const u8 *)evt, len);
612 dev_warn(ddev->dev, "event buffer overrun\n");
1128 * big this event buffer is and how it behaves on overruns).