On Mon, Jun 11, 2007 at 11:38:30AM +0100, andy@xxxxxxxxxxx wrote: > bcm43xx-mac80211 is reporting bogus frequencies and channels back to > mac80211 at the moment (eg, actual ch1 (2412MHz) reported as 2424MHz). > > Prior to this patch, the hardware rx channel value is reported as > starting at 0x18 and rising by 0x0a per channel. Code in bcm43xx_xmit.c > tries to take this value and add 2400 to it to get the rx frequency. > It seems the intention is that the hardware reports the (rx freq - 2400), > so we want the value starting at 0x0c and rising by 0x05 per channel. > > If the value read is shifted one more bit to the right, it will > succeed in doing this. Therefore this patch increases the shifting constant > by one and reduces the mask by one lsb. > > The rx frequency reported in the radiotap rx and then, eg, tcpdump, > is then correct. I didn't test ch 14 but I guess the hardware is > consistent about it. > > CC: Larry Finger <larry.finger@xxxxxxxxxxxx> > CC: Michael Buesch <mb@xxxxxxxxx> > Signed-off-by: Andy Green <andy@xxxxxxxxxxx> Larry, Michael, Johannes -- ack/nak? John -- John W. Linville linville@xxxxxxxxxxxxx - To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
