Fixed volume values in set_volume and get_volume.

1 files changed, 2 insertions, 2 deletions

diff --git a/main.cpp b/main.cpp
index 6e46591..1cee450 100644
--- a/main.cpp
+++ b/main.cpp
@@ -102,10 +102,10 @@ class DAC {
 		uint8_t get_volume(uint8_t c) {
 			uint8_t buf;
 			i2c.read_reg(0x4a, 0x1a + c, 1, &buf);
-			return buf & 0x7f;
+			return ((buf & 0x7f) - 0x19) & 0x7f;
 		}
 		void set_volume(uint8_t c, uint8_t v) {
-			i2c.write_reg(0x4a, 0x1a + c, v & 0x7f);
+			i2c.write_reg(0x4a, 0x1a + c, (v + 0x19) & 0x7f);
 		}
 };