+	if ((tid_num >= 100) && (tid_num <= 115)) {
+		/* toggle Rx aggregation command */

I think that's a bit odd, but I guess everything else is more work.

+		printk(KERN_ERR "%s tried switching tid=%u %s\n", __func__,
+				tid_num, state);

+		printk(KERN_ERR "%s tried switching tid=%u %s, return=%d\n",
+				__func__, tid_num, state, rs);

KERN_ERR is a bit excessive, don't you think?

johannes