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-rw-r--r--sound/pci/emu10k1/tina2.h18
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diff --git a/sound/pci/emu10k1/tina2.h b/sound/pci/emu10k1/tina2.h
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+++ b/sound/pci/emu10k1/tina2.h
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
+ * Driver tina2 chips
+ * Version: 0.1
+ */
+
+/********************************************************************************************************/
+/* Audigy2 Tina2 (notebook) pointer-offset register set, accessed through the PTR2 and DATA2 registers */
+/********************************************************************************************************/
+
+#define TINA2_VOLUME 0x71 /* Attenuate playback volume to prevent distortion. */
+ /* The windows driver does not use this register,
+ * so it must use some other attenuation method.
+ * Without this, the output is 12dB too loud,
+ * resulting in distortion.
+ */
+