diff --git a/libc/kernel/uapi/linux/pktcdvd.h b/libc/kernel/uapi/linux/pktcdvd.h
new file mode 100644
index 0000000..c80e8eb
--- /dev/null
+++ b/libc/kernel/uapi/linux/pktcdvd.h
@@ -0,0 +1,73 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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 _UAPI__PKTCDVD_H
+#define _UAPI__PKTCDVD_H
+#include <linux/types.h>
+#define PACKET_DEBUG 1
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define MAX_WRITERS 8
+#define PKT_RB_POOL_SIZE 512
+#define PACKET_WAIT_TIME (HZ * 5 / 1000)
+#define USE_WCACHING 0
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PACKET_CDR 1
+#define PACKET_CDRW 2
+#define PACKET_DVDR 3
+#define PACKET_DVDRW 4
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PACKET_WRITABLE 1
+#define PACKET_NWA_VALID 2
+#define PACKET_LRA_VALID 3
+#define PACKET_MERGE_SEGS 4
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PACKET_DISC_EMPTY 0
+#define PACKET_DISC_INCOMPLETE 1
+#define PACKET_DISC_COMPLETE 2
+#define PACKET_DISC_OTHER 3
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PACKET_MODE1 1
+#define PACKET_MODE2 2
+#define PACKET_BLOCK_MODE1 8
+#define PACKET_BLOCK_MODE2 10
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PACKET_SESSION_EMPTY 0
+#define PACKET_SESSION_INCOMPLETE 1
+#define PACKET_SESSION_RESERVED 2
+#define PACKET_SESSION_COMPLETE 3
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PACKET_MCN "4a656e734178626f65323030300000"
+#undef PACKET_USE_LS
+#define PKT_CTRL_CMD_SETUP 0
+#define PKT_CTRL_CMD_TEARDOWN 1
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define PKT_CTRL_CMD_STATUS 2
+struct pkt_ctrl_command {
+ __u32 command;
+ __u32 dev_index;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u32 dev;
+ __u32 pkt_dev;
+ __u32 num_devices;
+ __u32 padding;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+#define PACKET_IOCTL_MAGIC ('X')
+#define PACKET_CTRL_CMD _IOWR(PACKET_IOCTL_MAGIC, 1, struct pkt_ctrl_command)
+#endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */