HAL_TXDESC_RTSENA
if (flags & (HAL_TXDESC_RTSENA | HAL_TXDESC_CTSENA)) {
if (flags & (HAL_TXDESC_RTSENA | HAL_TXDESC_CTSENA)) {
if ((flags & HAL_TXDESC_RTSENA) &&
flags |= HAL_TXDESC_RTSENA; /* RTS based on frame length */
if (flags & (HAL_TXDESC_RTSENA|HAL_TXDESC_CTSENA)) {
if (flags & HAL_TXDESC_RTSENA) { /* SIFS + CTS */