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From: Helmut Schaa <helmut.schaa@googlemail.com>
To: Ivo Van Doorn <ivdoorn@gmail.com>
Subject: Re: Rate control & USB
Date: Mon, 12 Jul 2010 21:14:09 +0200
Cc: "linux-wireless" <linux-wireless@vger.kernel.org>,
	Johannes Berg <johannes@sipsolutions.net>,
	Felix Fietkau <nbd@openwrt.org>
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Am Montag 12 Juli 2010 schrieb Ivo Van Doorn:
> I am currently looking into the old problem of the mac80211 rate
> control algorithms
> and USB devices. The Ralink USB devices (and as far as I know, the
> other USB devices
> as well), do not work well with the PID and Minstrel algorithms. This
> is caused by the
> fact that USB devices do not report the TX status to mac80211.

Ivo, do you know by any chance if the USB devices also have a TX_STA_FIFO
register like the PCI variants? Does it contain useful data or just crap?

Helmut