From cc031d41ab89daa06789fb28c0c1992a7928847a Mon Sep 17 00:00:00 2001
From: Amaury Pouly <amaury.pouly@gmail.com>
Date: Sun, 21 Aug 2016 20:27:17 +0100
Subject: wm8731: document audiohw settings

Change-Id: I78ec26a00a3e14a95c591ac81d96e1b480b9138e
---
 firmware/drivers/audio/wm8731.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'firmware/drivers/audio/wm8731.c')

diff --git a/firmware/drivers/audio/wm8731.c b/firmware/drivers/audio/wm8731.c
index 18e04618bf..98155a71eb 100644
--- a/firmware/drivers/audio/wm8731.c
+++ b/firmware/drivers/audio/wm8731.c
@@ -268,6 +268,8 @@ void audiohw_disable_recording(void)
     codec_set_active(true);
 }
 
+/* Line in: 0 .. 31 => Volume -34.5 .. +12 dB
+ * Microphone: 0 or 20 dB */
 void audiohw_set_recvol(int left, int right, int type)
 {
     switch (type)
-- 
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