User`s guide

Aironet Wireless Communications, Inc. 7-36 Confidential and Proprietary
FID with 802.3 Header – Station Mode
Station drivers will typically configure the PC4500/4800 to have 802.3 headers in the FID. This allows
the driver to ignore the details of the 802.11 wireless network header and simply transfer ethernet or LLC
packets.
For receive, this mode allows the host driver to efficiently read the most common fields with only one
BAP setup. Typically the driver only needs to read the 802.3 Header and payload.
For transmit, the Control Header fields must be initialized, and then the 802.3 Header and payload
written. If the transmit FID is being reused after completion, then the initialization of the Control
Header need only be done the first time after the transmit FID is initially allocated. This allows for
further efficiency, since the driver need only write the 802.3 Header and payload for each subsequent
transmission.