diff --git a/libc/kernel/uapi/linux/ultrasound.h b/libc/kernel/uapi/linux/ultrasound.h
new file mode 100644
index 0000000..33c4b5b
--- /dev/null
+++ b/libc/kernel/uapi/linux/ultrasound.h
@@ -0,0 +1,65 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _ULTRASOUND_H_
+#define _ULTRASOUND_H_
+#define _GUS_NUMVOICES 0x00
+#define _GUS_VOICESAMPLE 0x01
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define _GUS_VOICEON 0x02
+#define _GUS_VOICEOFF 0x03
+#define _GUS_VOICEMODE 0x04
+#define _GUS_VOICEBALA 0x05
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define _GUS_VOICEFREQ 0x06
+#define _GUS_VOICEVOL 0x07
+#define _GUS_RAMPRANGE 0x08
+#define _GUS_RAMPRATE 0x09
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define _GUS_RAMPMODE 0x0a
+#define _GUS_RAMPON 0x0b
+#define _GUS_RAMPOFF 0x0c
+#define _GUS_VOICEFADE 0x0d
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define _GUS_VOLUME_SCALE 0x0e
+#define _GUS_VOICEVOL2 0x0f
+#define _GUS_VOICE_POS 0x10
+#define _GUS_CMD(chn, voice, cmd, p1, p2)   {_SEQ_NEEDBUF(8); _seqbuf[_seqbufptr] = SEQ_PRIVATE;  _seqbuf[_seqbufptr+1] = (chn); _seqbuf[_seqbufptr+2] = cmd;  _seqbuf[_seqbufptr+3] = voice;  *(unsigned short*)&_seqbuf[_seqbufptr+4] = p1;  *(unsigned short*)&_seqbuf[_seqbufptr+6] = p2;  _SEQ_ADVBUF(8);}
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define GUS_NUMVOICES(chn, p1) _GUS_CMD(chn, 0, _GUS_NUMVOICES, (p1), 0)
+#define GUS_VOICESAMPLE(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICESAMPLE, (p1), 0)
+#define GUS_VOICEON(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEON, (p1), 0)
+#define GUS_VOICEOFF(chn, voice) _GUS_CMD(chn, voice, _GUS_VOICEOFF, 0, 0)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define GUS_VOICEFADE(chn, voice) _GUS_CMD(chn, voice, _GUS_VOICEFADE, 0, 0)
+#define GUS_VOICEMODE(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEMODE, (p1), 0)
+#define GUS_VOICEBALA(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEBALA, (p1), 0)
+#define GUS_VOICEFREQ(chn, voice, p) _GUS_CMD(chn, voice, _GUS_VOICEFREQ,   (p) & 0xffff, ((p) >> 16) & 0xffff)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define GUS_VOICEVOL(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEVOL, (p1), 0)
+#define GUS_VOICEVOL2(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_VOICEVOL2, (p1), 0)
+#define GUS_RAMPRANGE(chn, voice, low, high) _GUS_CMD(chn, voice, _GUS_RAMPRANGE, (low), (high))
+#define GUS_RAMPRATE(chn, voice, p1, p2) _GUS_CMD(chn, voice, _GUS_RAMPRATE, (p1), (p2))
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define GUS_RAMPMODE(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_RAMPMODE, (p1), 0)
+#define GUS_RAMPON(chn, voice, p1) _GUS_CMD(chn, voice, _GUS_RAMPON, (p1), 0)
+#define GUS_RAMPOFF(chn, voice) _GUS_CMD(chn, voice, _GUS_RAMPOFF, 0, 0)
+#define GUS_VOLUME_SCALE(chn, voice, p1, p2) _GUS_CMD(chn, voice, _GUS_VOLUME_SCALE, (p1), (p2))
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define GUS_VOICE_POS(chn, voice, p) _GUS_CMD(chn, voice, _GUS_VOICE_POS,   (p) & 0xffff, ((p) >> 16) & 0xffff)
+#endif