From: Alexandru Gagniuc <redacted>
Date: Sun, 2 Dec 2012 18:43:37 +0000 (-0600)
Subject: radioshack-dmm: Fix opening of serial port.
X-Git-Tag: dsupstream~492
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=ae95ffebfa0d8c0992332b33631a26d898957b34;p=libsigrok.git

radioshack-dmm: Fix opening of serial port.

During scan the serial port is opened with SERIAL_RDONLY | SERIAL_NONBLOCK,
which works fine, but when acquisition starts, it is opened only with
SERIAL_RDONLY. On Linux, if cdc_acm can make a claim to the USB to serial
converter, opening the port will fail.

Open port with SERIAL_RDONLY | SERIAL_NONBLOCK.

Signed-off-by: Alexandru Gagniuc <redacted>
---

diff --git a/hardware/radioshack-dmm/api.c b/hardware/radioshack-dmm/api.c
index 47620e3c..789685dd 100644
--- a/hardware/radioshack-dmm/api.c
+++ b/hardware/radioshack-dmm/api.c
@@ -217,7 +217,7 @@ static int hw_dev_open(struct sr_dev_inst *sdi)
 		return SR_ERR_BUG;
 	}
 
-	if (serial_open(devc->serial, SERIAL_RDONLY) != SR_OK)
+	if (serial_open(devc->serial, SERIAL_RDONLY | SERIAL_NONBLOCK) != SR_OK)
 		return SR_ERR;
 
 	sdi->status = SR_ST_ACTIVE;