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@@ -0,0 +1,31 @@
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+/*
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ */
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+
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+#ifndef __UAPI_SOUND_TLV_H
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+#define __UAPI_SOUND_TLV_H
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+
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+#define SNDRV_CTL_TLVT_CONTAINER 0 /* one level down - group of TLVs */
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+#define SNDRV_CTL_TLVT_DB_SCALE 1 /* dB scale */
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+#define SNDRV_CTL_TLVT_DB_LINEAR 2 /* linear volume */
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+#define SNDRV_CTL_TLVT_DB_RANGE 3 /* dB range container */
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+#define SNDRV_CTL_TLVT_DB_MINMAX 4 /* dB scale with min/max */
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+#define SNDRV_CTL_TLVT_DB_MINMAX_MUTE 5 /* dB scale with min/max with mute */
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+
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+/*
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+ * channel-mapping TLV items
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+ * TLV length must match with num_channels
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+ */
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+#define SNDRV_CTL_TLVT_CHMAP_FIXED 0x101 /* fixed channel position */
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+#define SNDRV_CTL_TLVT_CHMAP_VAR 0x102 /* channels freely swappable */
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+#define SNDRV_CTL_TLVT_CHMAP_PAIRED 0x103 /* pair-wise swappable */
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+
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+#endif
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