Am 02.05.2013 18:55, schrieb Adrian Chadd: > On 2 May 2013 01:11, Oleksij Rempel <li...@rempel-privat.de> 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 _______________________________________________ ath9k-devel mailing list ath9k-devel@lists.ath9k.org https://lists.ath9k.org/mailman/listinfo/ath9k-devel
