From: Uwe Hermann <redacted>
Date: Tue, 1 Apr 2014 20:41:02 +0000 (+0200)
Subject: chronovu-la: Document that streaming is not possible.
X-Git-Tag: libsigrok-0.3.0~95
X-Git-Url: https://sigrok.org/gitweb/?a=commitdiff_plain;ds=sidebyside;h=b0efc84e12c97afc59ae53225a4e59c2fa9459ef;p=libsigrok.git

chronovu-la: Document that streaming is not possible.

This closes bug #261.
---

diff --git a/hardware/chronovu-la/api.c b/hardware/chronovu-la/api.c
index d783f4fe..228d632a 100644
--- a/hardware/chronovu-la/api.c
+++ b/hardware/chronovu-la/api.c
@@ -410,7 +410,14 @@ static int receive_data(int fd, int revents, void *cb_data)
 
 	sr_dbg("Sampling finished, sending data to session bus now.");
 
-	/* All data was received and demangled, send it to the session bus. */
+	/*
+	 * All data was received and demangled, send it to the session bus.
+	 *
+	 * Note: Due to the method how data is spread across the 8MByte of
+	 * SDRAM, we can _not_ send it to the session bus in a streaming
+	 * manner while we receive it. We have to receive and de-mangle the
+	 * full 8MByte first, only then the whole buffer contains valid data.
+	 */
 	for (i = 0; i < NUM_BLOCKS; i++)
 		cv_send_block_to_session_bus(devc, i);