From c257eb1d7f455d79b8e59e0cb5081925ede83296 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Sun, 15 May 2022 16:13:36 +0200
Subject: scd4x: properly transmit read command

---
 src/driver/scd4x.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/driver/scd4x.cc b/src/driver/scd4x.cc
index dfb6ee0..3ad34a0 100644
--- a/src/driver/scd4x.cc
+++ b/src/driver/scd4x.cc
@@ -37,7 +37,7 @@ void SCD4x::read()
 	txbuf[0] = 0xec;
 	txbuf[1] = 0x05;
 
-	if (i2c.xmit(address, 1, txbuf, 9, rxbuf) == 0) {
+	if (i2c.xmit(address, 2, txbuf, 9, rxbuf) == 0) {
 		co2 = (rxbuf[0] << 8) + rxbuf[1];
 		rawTemperature = ((rxbuf[3] << 8) + rxbuf[4]);
 		rawHumidity = (rxbuf[6] << 8) + rxbuf[7];
-- 
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