thank you very much:)
On Sun, 2 Jan 2005 15:29:59 +1100, David Gibson
<david-xT8FGy+AXnRB3Ne2BGzF6laj5H9X9Tb+@xxxxxxxxxxxxxxxx> wrote:
> On Mon, Dec 27, 2004 at 02:22:47PM -0500, Thin Worm wrote:
> > I don't know how to find the seq_ctl information in the sending-out packet.
> > I think it should be found in the function orinoco_xmit(), but the
> > comment in this function make me confused,
> >
> > /* Clear the 802.11 header and data length fields -some
> > * firewares (e.g. Lucent/Agere 8.xx) appear to get confused
> > * if this isn't done. */
> > hermes_clear_words(hw, HERMES_DATA0,
> > HERMES_802_3_OFFSET - HERMES_802_11_OFFSET);
> > if all the 802.11 information is cleared, where can I find it? is it
> > useless for orinoco driver?
> >
> > the 802.11 header defined ad below:
> > struct ieee802_11_hdr {
> > u16 frame_ctl;
> > u16 duration_id;
> > u8 addr1[ETH_ALEN];
> > u8 addr2[ETH_ALEN];
> > u8 addr3[ETH_ALEN];
> > u16 seq_ctl;
> > u8 addr4[ETH_ALEN];
> > } __attribute__ ((packed));
>
> We don't fill in the 802.11 header ourselves when sending. Instead we
> fill in an 802.3 header, and the firmware converts it to 802.11 (this
> should probably be changed, but we no-one seems to have had time to do
> it).
>
> So the seq_ctl field will be filled in with whatever the firmware's
> default is, I guess.
>
> --
> David Gibson | I'll have my music baroque, and my code
> david AT gibson.dropbear.id.au | minimalist. NOT _the_ _other_ _way_
> | _around_!
> http://www.ozlabs.org/people/dgibson
>
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