diff --git a/libc/kernel/uapi/linux/usb/audio.h b/libc/kernel/uapi/linux/usb/audio.h
index 87b8bd5..7d36157 100644
--- a/libc/kernel/uapi/linux/usb/audio.h
+++ b/libc/kernel/uapi/linux/usb/audio.h
@@ -154,6 +154,12 @@
 #define UAC_OUTPUT_TERMINAL_ROOM_SPEAKER 0x305
 #define UAC_OUTPUT_TERMINAL_COMMUNICATION_SPEAKER 0x306
 #define UAC_OUTPUT_TERMINAL_LOW_FREQ_EFFECTS_SPEAKER 0x307
+#define UAC_BIDIR_TERMINAL_UNDEFINED 0x400
+#define UAC_BIDIR_TERMINAL_HANDSET 0x401
+#define UAC_BIDIR_TERMINAL_HEADSET 0x402
+#define UAC_BIDIR_TERMINAL_SPEAKER_PHONE 0x403
+#define UAC_BIDIR_TERMINAL_ECHO_SUPPRESSING 0x404
+#define UAC_BIDIR_TERMINAL_ECHO_CANCELING 0x405
 #define UAC_DT_FEATURE_UNIT_SIZE(ch) (7 + ((ch) + 1) * 2)
 #define DECLARE_UAC_FEATURE_UNIT_DESCRIPTOR(ch) struct uac_feature_unit_descriptor_ ##ch { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bUnitID; __u8 bSourceID; __u8 bControlSize; __le16 bmaControls[ch + 1]; __u8 iFeature; \
 } __attribute__((packed))
diff --git a/libc/kernel/uapi/linux/usb/ch11.h b/libc/kernel/uapi/linux/usb/ch11.h
index e31c37b..55387fe 100644
--- a/libc/kernel/uapi/linux/usb/ch11.h
+++ b/libc/kernel/uapi/linux/usb/ch11.h
@@ -109,6 +109,8 @@
 #define USB_EXT_PORT_STAT_TX_SPEED_ID 0x000000f0
 #define USB_EXT_PORT_STAT_RX_LANES 0x00000f00
 #define USB_EXT_PORT_STAT_TX_LANES 0x0000f000
+#define USB_EXT_PORT_RX_LANES(p) (((p) & USB_EXT_PORT_STAT_RX_LANES) >> 8)
+#define USB_EXT_PORT_TX_LANES(p) (((p) & USB_EXT_PORT_STAT_TX_LANES) >> 12)
 #define HUB_CHAR_LPSM 0x0003
 #define HUB_CHAR_COMMON_LPSM 0x0000
 #define HUB_CHAR_INDV_PORT_LPSM 0x0001
diff --git a/libc/kernel/uapi/linux/usb/g_uvc.h b/libc/kernel/uapi/linux/usb/g_uvc.h
new file mode 100644
index 0000000..0aeba3d
--- /dev/null
+++ b/libc/kernel/uapi/linux/usb/g_uvc.h
@@ -0,0 +1,44 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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 __LINUX_USB_G_UVC_H
+#define __LINUX_USB_G_UVC_H
+#include <linux/ioctl.h>
+#include <linux/types.h>
+#include <linux/usb/ch9.h>
+#define UVC_EVENT_FIRST (V4L2_EVENT_PRIVATE_START + 0)
+#define UVC_EVENT_CONNECT (V4L2_EVENT_PRIVATE_START + 0)
+#define UVC_EVENT_DISCONNECT (V4L2_EVENT_PRIVATE_START + 1)
+#define UVC_EVENT_STREAMON (V4L2_EVENT_PRIVATE_START + 2)
+#define UVC_EVENT_STREAMOFF (V4L2_EVENT_PRIVATE_START + 3)
+#define UVC_EVENT_SETUP (V4L2_EVENT_PRIVATE_START + 4)
+#define UVC_EVENT_DATA (V4L2_EVENT_PRIVATE_START + 5)
+#define UVC_EVENT_LAST (V4L2_EVENT_PRIVATE_START + 5)
+struct uvc_request_data {
+  __s32 length;
+  __u8 data[60];
+};
+struct uvc_event {
+  union {
+    enum usb_device_speed speed;
+    struct usb_ctrlrequest req;
+    struct uvc_request_data data;
+  };
+};
+#define UVCIOC_SEND_RESPONSE _IOW('U', 1, struct uvc_request_data)
+#endif
diff --git a/libc/kernel/uapi/linux/usb/tmc.h b/libc/kernel/uapi/linux/usb/tmc.h
index c93096e..6e276de 100644
--- a/libc/kernel/uapi/linux/usb/tmc.h
+++ b/libc/kernel/uapi/linux/usb/tmc.h
@@ -18,6 +18,7 @@
  ****************************************************************************/
 #ifndef __LINUX_USB_TMC_H
 #define __LINUX_USB_TMC_H
+#include <linux/types.h>
 #define USBTMC_STATUS_SUCCESS 0x01
 #define USBTMC_STATUS_PENDING 0x02
 #define USBTMC_STATUS_FAILED 0x80
@@ -36,6 +37,10 @@
 #define USBTMC488_REQUEST_REN_CONTROL 160
 #define USBTMC488_REQUEST_GOTO_LOCAL 161
 #define USBTMC488_REQUEST_LOCAL_LOCKOUT 162
+struct usbtmc_termchar {
+  __u8 term_char;
+  __u8 term_char_enabled;
+} __attribute__((packed));
 #define USBTMC_IOC_NR 91
 #define USBTMC_IOCTL_INDICATOR_PULSE _IO(USBTMC_IOC_NR, 1)
 #define USBTMC_IOCTL_CLEAR _IO(USBTMC_IOC_NR, 2)
@@ -43,11 +48,16 @@
 #define USBTMC_IOCTL_ABORT_BULK_IN _IO(USBTMC_IOC_NR, 4)
 #define USBTMC_IOCTL_CLEAR_OUT_HALT _IO(USBTMC_IOC_NR, 6)
 #define USBTMC_IOCTL_CLEAR_IN_HALT _IO(USBTMC_IOC_NR, 7)
+#define USBTMC_IOCTL_GET_TIMEOUT _IOR(USBTMC_IOC_NR, 9, __u32)
+#define USBTMC_IOCTL_SET_TIMEOUT _IOW(USBTMC_IOC_NR, 10, __u32)
+#define USBTMC_IOCTL_EOM_ENABLE _IOW(USBTMC_IOC_NR, 11, __u8)
+#define USBTMC_IOCTL_CONFIG_TERMCHAR _IOW(USBTMC_IOC_NR, 12, struct usbtmc_termchar)
 #define USBTMC488_IOCTL_GET_CAPS _IOR(USBTMC_IOC_NR, 17, unsigned char)
 #define USBTMC488_IOCTL_READ_STB _IOR(USBTMC_IOC_NR, 18, unsigned char)
 #define USBTMC488_IOCTL_REN_CONTROL _IOW(USBTMC_IOC_NR, 19, unsigned char)
 #define USBTMC488_IOCTL_GOTO_LOCAL _IO(USBTMC_IOC_NR, 20)
 #define USBTMC488_IOCTL_LOCAL_LOCKOUT _IO(USBTMC_IOC_NR, 21)
+#define USBTMC488_IOCTL_TRIGGER _IO(USBTMC_IOC_NR, 22)
 #define USBTMC488_CAPABILITY_TRIGGER 1
 #define USBTMC488_CAPABILITY_SIMPLE 2
 #define USBTMC488_CAPABILITY_REN_CONTROL 2