Modifying the protocol

Sharad Mittal sharad_mittal12 at
Wed May 28 01:39:51 EDT 2003

    As far as I know, the firmware is responsible for setting only few bits 
out of the whole 802.11 packet. So even if you use the reserved combination 
of bits for your work, i guess it should work. There is no harm in trying 


>Message: 13
>Date: Tue, 27 May 2003 15:33:06 -0400 (EDT)
>From: Rahul Mangharam <rahulm at>
>To: hostap at
>Subject: Modifying the protocol
>Hi All,
>I am trying to adapt the 802.11 protocol for my research and would like to
>know if it is possible to set two bits in the MAC header that the Prism
>firmware writes but ignores otherwise. These could be reserved (but
>unused) bits in the MAC header mentioned in the 802.11 spec. There are
>reserved bits for Management/Control/Data sub-types.
>Is anyone aware of any registers that are writable that set unused bits in
>the MAC header? If this is possible, would the same read register
>functions work for them (will they be passed up to the driver)?

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