dvb_ringbuffer_avail
avail = dvb_ringbuffer_avail(src);
while (dvb_ringbuffer_avail(rbuf) > DVB_RINGBUFFER_PKTHDRSIZE) {
while ((dvb_ringbuffer_avail(rbuf) - consumed) > DVB_RINGBUFFER_PKTHDRSIZE) {
EXPORT_SYMBOL(dvb_ringbuffer_avail);
alen = dvb_ringbuffer_avail(&dev->tsout_rbuf);
dvb_ringbuffer_avail(&dev->tsin_rbuf) > 0) < 0)
avail = dvb_ringbuffer_avail(&dev->tsin_rbuf);
avail = dvb_ringbuffer_avail(cibuf);
len = dvb_ringbuffer_avail(buf);
avail = dvb_ringbuffer_avail(cibuf);
extern ssize_t dvb_ringbuffer_avail(struct dvb_ringbuffer *rbuf);