From: Lars-Peter Clausen <redacted>
Date: Sat, 23 Jan 2016 13:21:15 +0000 (+0100)
Subject: hung-chang-dso-2100: Fix session source fd
X-Git-Tag: libsigrok-0.4.0~11
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=b165a24234b44a39e87661132ee0c92b49dac5ea;p=libsigrok.git

hung-chang-dso-2100: Fix session source fd

For session sources without a file descriptor to poll a negative number
should be passed for the fd parameter. The hung-chang-dso-2100 driver
currently passes 0 instead, which is the stdin stream. Fix the issue by
passing -1 for the fd parameter.

Signed-off-by: Lars-Peter Clausen <redacted>
---

diff --git a/src/hardware/hung-chang-dso-2100/api.c b/src/hardware/hung-chang-dso-2100/api.c
index b3b4634d..45fff2bc 100644
--- a/src/hardware/hung-chang-dso-2100/api.c
+++ b/src/hardware/hung-chang-dso-2100/api.c
@@ -715,7 +715,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi,
 
 	std_session_send_df_header(cb_data, LOG_PREFIX);
 
-	sr_session_source_add(sdi->session, 0, 0, 8,
+	sr_session_source_add(sdi->session, -1, 0, 8,
 			      hung_chang_dso_2100_poll, (void *)sdi);
 
 	return SR_OK;
@@ -730,7 +730,7 @@ SR_PRIV int hung_chang_dso_2100_dev_acquisition_stop(const struct sr_dev_inst *s
 		return SR_ERR_DEV_CLOSED;
 
 	sr_session_send(cb_data, &packet);
-	sr_session_source_remove(sdi->session, 0);
+	sr_session_source_remove(sdi->session, -1);
 
 	hung_chang_dso_2100_move_to(sdi, 1);