EB2_FIFO_DRAIN
for (x = 0; (reg & EB2_FIFO_DRAIN) && x < CS4231_TIMEOUT; x++) {
for (x = 0; (reg & EB2_FIFO_DRAIN) && x < CS4231_TIMEOUT; x++) {
for (x = 0; (csr & EB2_FIFO_DRAIN) && x < CS4231_TIMEOUT; x++) {
for (int x = 0; (csr & EB2_FIFO_DRAIN) && x < CS4231_TIMEOUT; x++) {