From: Martin Ling <redacted>
Date: Tue, 16 Sep 2014 01:11:05 +0000 (+0100)
Subject: agilent-dmm: Make serial write call block in scan.
X-Git-Tag: libsigrok-0.4.0~979
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=485b9ae34d37395ef1a77b5aedb337446aafddb9;p=libsigrok.git

agilent-dmm: Make serial write call block in scan.

This call is executed at scan time so is free to block. There is no
handling for a partial write and a response is expected immediately
afterwards. It should therefore be a blocking call.
---

diff --git a/src/hardware/agilent-dmm/api.c b/src/hardware/agilent-dmm/api.c
index 1c18c99c..c89d18ed 100644
--- a/src/hardware/agilent-dmm/api.c
+++ b/src/hardware/agilent-dmm/api.c
@@ -116,7 +116,7 @@ static GSList *scan(GSList *options)
 		return NULL;
 
 	serial_flush(serial);
-	if (serial_write(serial, "*IDN?\r\n", 7) == -1) {
+	if (serial_write_blocking(serial, "*IDN?\r\n", 7) == -1) {
 		sr_err("Unable to send identification string: %s.",
 		       strerror(errno));
 		return NULL;