diff --git a/libc/kernel/uapi/linux/usb/ch9.h b/libc/kernel/uapi/linux/usb/ch9.h
index 89d772a..2d69abd 100644
--- a/libc/kernel/uapi/linux/usb/ch9.h
+++ b/libc/kernel/uapi/linux/usb/ch9.h
@@ -380,6 +380,8 @@
 #define USB_BESL_SUPPORT (1 << 2)
 #define USB_BESL_BASELINE_VALID (1 << 3)
 #define USB_BESL_DEEP_VALID (1 << 4)
+#define USB_SET_BESL_BASELINE(p) (((p) & 0xf) << 8)
+#define USB_SET_BESL_DEEP(p) (((p) & 0xf) << 12)
 #define USB_GET_BESL_BASELINE(p) (((p) & (0xf << 8)) >> 8)
 #define USB_GET_BESL_DEEP(p) (((p) & (0xf << 12)) >> 12)
 } __attribute__((packed));
diff --git a/libc/kernel/uapi/linux/usb/f_accessory.h b/libc/kernel/uapi/linux/usb/f_accessory.h
new file mode 100644
index 0000000..d4c5efe
--- /dev/null
+++ b/libc/kernel/uapi/linux/usb/f_accessory.h
@@ -0,0 +1,46 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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_LINUX_USB_F_ACCESSORY_H
+#define _UAPI_LINUX_USB_F_ACCESSORY_H
+#define USB_ACCESSORY_VENDOR_ID 0x18D1
+#define USB_ACCESSORY_PRODUCT_ID 0x2D00
+#define USB_ACCESSORY_ADB_PRODUCT_ID 0x2D01
+#define ACCESSORY_STRING_MANUFACTURER 0
+#define ACCESSORY_STRING_MODEL 1
+#define ACCESSORY_STRING_DESCRIPTION 2
+#define ACCESSORY_STRING_VERSION 3
+#define ACCESSORY_STRING_URI 4
+#define ACCESSORY_STRING_SERIAL 5
+#define ACCESSORY_GET_PROTOCOL 51
+#define ACCESSORY_SEND_STRING 52
+#define ACCESSORY_START 53
+#define ACCESSORY_REGISTER_HID 54
+#define ACCESSORY_UNREGISTER_HID 55
+#define ACCESSORY_SET_HID_REPORT_DESC 56
+#define ACCESSORY_SEND_HID_EVENT 57
+#define ACCESSORY_SET_AUDIO_MODE 58
+#define ACCESSORY_GET_STRING_MANUFACTURER _IOW('M', 1, char[256])
+#define ACCESSORY_GET_STRING_MODEL _IOW('M', 2, char[256])
+#define ACCESSORY_GET_STRING_DESCRIPTION _IOW('M', 3, char[256])
+#define ACCESSORY_GET_STRING_VERSION _IOW('M', 4, char[256])
+#define ACCESSORY_GET_STRING_URI _IOW('M', 5, char[256])
+#define ACCESSORY_GET_STRING_SERIAL _IOW('M', 6, char[256])
+#define ACCESSORY_IS_START_REQUESTED _IO('M', 7)
+#define ACCESSORY_GET_AUDIO_MODE _IO('M', 8)
+#endif