+ * BSS_ID_MASK:
+ * This mask is used to mask off bits 0 and 1 of byte 5 of the
+ * BSSID. This will make sure that those bits will be ignored
+ * when determining the MY_BSS of RX frames.
+ * 0: 1-BSSID mode (BSS index = 0)
+ * 1: 2-BSSID mode (BSS index: Byte5, bit 0)
+ * 2: 2-BSSID mode (BSS index: byte5, bit 1)
+ * 3: 4-BSSID mode (BSS index: byte5, bit 0 - 1)