Am 02.05.2013 18:55, schrieb Adrian Chadd:
On 2 May 2013 01:11, Oleksij Rempel <linux@xxxxxxxxxxxxxxxx> wrote:
+#define WLAN_RC_TX_STBC_FLAG 0x20 /* TX STBC */
+#define WLAN_RC_RX_STBC_FLAG 0xC0 /* RX STBC ,2 bits */
I thought we covered this; why are you marking two bits here?
becouse firmware checks for two bits (and then use it as bool ;)), so i
pass what firmware can handle.
Atheros 11n hardware only supports 1-stream STBC RX.
Did you got my email with lots of assumptions and questions?
What do you mean by 1-stream STBC RX? After i did some home work on STBC
i see that it encoded from at least two spatial streams.
Is
1-stream STBC RX = 2 spatial streams with mirrored data?
and
2-stream STBC RX = 4 spatial streams with mirrored data?
or
1-stream STBC RX = compatibility mode for one stream hardware(so only of
two streams received)?
That would make sense for 1x1:1 hardware, but if you say all atheros N
hardware support only 1-stream STBC RX, will mean that STBC is useless
on this hardware.
Have you verified that we're actually negotiating 1-stream STBC RX
with a peer? (Ie, by looking at packet captures?)
Yes, i wrote this too :) I verified it, we negotiate only 1-stream STBC RX.
--
Regards,
Oleksij
--
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
