From 6a6dcf2a27f450129318c95b94d75dbe21e79448 Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@osmocom.org>
Date: Sat, 11 Jan 2020 17:33:08 +0100
Subject: WIP: firmware: sniffer: inbound USB handling

Change-Id: Ic953148600d82285281abcb573a07e2e9b8082a7
---
 firmware/libcommon/source/sniffer.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/firmware/libcommon/source/sniffer.c b/firmware/libcommon/source/sniffer.c
index 78413ec..7fd9961 100644
--- a/firmware/libcommon/source/sniffer.c
+++ b/firmware/libcommon/source/sniffer.c
@@ -977,8 +977,22 @@ static void usb_send_change(uint32_t flags)
 /* handle incoming message from USB OUT EP */
 static void dispatch_usb_out(struct msgb *msg, const struct usb_if *usb_if)
 {
-	/* currently we don't need any incoming data */
-	msgb_free(msg);
+	struct simtrace_msg_hdr *sh = (Struct simtrace_msg_hdr *) msg->l1h;
+
+	if (msg_length(msg) < sizeof(*sh)) {
+		usb_buf_free(msg);
+		return;
+	}
+	msg->l2h = msg->l1h + sizeof(*sh);
+
+	switch (sh->msg_class) {
+	case SIMTRACE_MSGC_GENERIC:
+		break;
+	default:
+		break;
+	}
+
+	usb_buf_free(msg);
 }
 
 static const struct usb_if sniffer_usb_if = {
-- 
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