X-Git-Url: https://jxself.org/git/?p=carl9170fw.git;a=blobdiff_plain;f=carlfw%2Fusb%2Fmain.c;h=1429607f891a1a7514457d797d247b3f669d6736;hp=d07eb25272c7ee3fc1dc54a9be4e5300ce74928a;hb=acca5dfdf46f522105f8181c8aff4392eecce8de;hpb=37e0334fc3746804825771fe87afaa5dca3d1e81

diff --git a/carlfw/usb/main.c b/carlfw/usb/main.c
index d07eb25..1429607 100644
--- a/carlfw/usb/main.c
+++ b/carlfw/usb/main.c
@@ -65,7 +65,14 @@ static struct carl9170_rsp *get_int_buf(void)
 {
 	struct carl9170_rsp *tmp;
 
-	tmp = &fw.usb.int_buf[fw.usb.int_tail_index++];
+	/* fetch the _oldest_ buffer from the ring */
+	tmp = &fw.usb.int_buf[fw.usb.int_tail_index];
+
+	/* assign a unique sequence for every response/trap */
+	tmp->hdr.seq = fw.usb.int_tail_index;
+
+	fw.usb.int_tail_index++;
+
 	fw.usb.int_tail_index %= CARL9170_INT_RQ_CACHES;
 	if (fw.usb.int_pending != CARL9170_INT_RQ_CACHES)
 		fw.usb.int_pending++;