diff --git a/libc/kernel/uapi/linux/phantom.h b/libc/kernel/uapi/linux/phantom.h
new file mode 100644
index 0000000..d436ec1
--- /dev/null
+++ b/libc/kernel/uapi/linux/phantom.h
@@ -0,0 +1,53 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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 __PHANTOM_H
+#define __PHANTOM_H
+#include <linux/types.h>
+struct phm_reg {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u32 reg;
+ __u32 value;
+};
+struct phm_regs {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u32 count;
+ __u32 mask;
+ __u32 values[8];
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PH_IOC_MAGIC 'p'
+#define PHN_GET_REG _IOWR(PH_IOC_MAGIC, 0, struct phm_reg *)
+#define PHN_SET_REG _IOW(PH_IOC_MAGIC, 1, struct phm_reg *)
+#define PHN_GET_REGS _IOWR(PH_IOC_MAGIC, 2, struct phm_regs *)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PHN_SET_REGS _IOW(PH_IOC_MAGIC, 3, struct phm_regs *)
+#define PHN_NOT_OH _IO(PH_IOC_MAGIC, 4)
+#define PHN_GETREG _IOWR(PH_IOC_MAGIC, 5, struct phm_reg)
+#define PHN_SETREG _IOW(PH_IOC_MAGIC, 6, struct phm_reg)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PHN_GETREGS _IOWR(PH_IOC_MAGIC, 7, struct phm_regs)
+#define PHN_SETREGS _IOW(PH_IOC_MAGIC, 8, struct phm_regs)
+#define PHN_CONTROL 0x6
+#define PHN_CTL_AMP 0x1
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PHN_CTL_BUT 0x2
+#define PHN_CTL_IRQ 0x10
+#define PHN_ZERO_FORCE 2048
+#endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */