X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fcolead-slm%2Fprotocol.c;h=182c77bb4b4e7a98a20fe5fcee6a56e2226c2a4a;hb=9e6d9bee2a6771aab111ad95140caf520310b109;hp=ef58ab73c484ae8c02340060e946a9f1e9483df8;hpb=9a10ce65d62526a24cbca2ee9e1cf55e132d6f7a;p=libsigrok.git

diff --git a/src/hardware/colead-slm/protocol.c b/src/hardware/colead-slm/protocol.c
index ef58ab73..182c77bb 100644
--- a/src/hardware/colead-slm/protocol.c
+++ b/src/hardware/colead-slm/protocol.c
@@ -184,7 +184,7 @@ SR_PRIV int colead_slm_receive_data(int fd, int revents, void *cb_data)
 	const struct sr_dev_inst *sdi;
 	struct dev_context *devc;
 	struct sr_serial_dev_inst *serial;
-	int len;
+	int delay_ms, len;
 	char buf[128];
 
 	(void)fd;
@@ -201,20 +201,21 @@ SR_PRIV int colead_slm_receive_data(int fd, int revents, void *cb_data)
 
 	serial = sdi->conn;
 	if (devc->state == IDLE) {
-		if (serial_read(serial, buf, 128) != 1 || buf[0] != 0x10)
+		if (serial_read_nonblocking(serial, buf, 128) != 1 || buf[0] != 0x10)
 			/* Nothing there, or caught the tail end of a previous packet,
 			 * or some garbage. Unless it's a single "data ready" byte,
 			 * we don't want it. */
 			return TRUE;
 		/* Got 0x10, "measurement ready". */
-		if (serial_write(serial, "\x20", 1) == -1)
-			sr_err("unable to send command: %s", strerror(errno));
+		delay_ms = serial_timeout(serial, 1);
+		if (serial_write_blocking(serial, "\x20", 1, delay_ms) < 1)
+			sr_err("unable to send command");
 		else {
 			devc->state = COMMAND_SENT;
 			devc->buflen = 0;
 		}
 	} else {
-		len = serial_read(serial, devc->buf + devc->buflen,
+		len = serial_read_nonblocking(serial, devc->buf + devc->buflen,
 				10 - devc->buflen);
 		if (len < 1)
 			return TRUE;