USBlyzer is an easy to use software USB protocol analyzer for Windowswhich provides a complete yet simple to understand view for analyzing USB Host Controllers, USB Hubs and USB Devices activity.

With USBlyzer you can view detailed information about all USB devices and their child components.

USBlyzer allows you to capture, decode and display important information such as URB requests and related structures used by USB drivers, IRP used by PnP subsystem, kernel-mode and user-mode I/O requests used by USB client drivers and user-mode applications.

USBlyzer can be successfully used for application, device driver and hardware development and can help you test and troubleshoot software and hardware.
USBlyzer is a complete software solution, so you won't have to install any additional hardware or software.

You'll find USBlyzer extremely useful for understanding how system-supplied and vendor-supplied USB device drivers communicate with the USB driver stack.

Here are some key features of "USBlyzer":

· Completely customizable interface with docked windows and user-defined screen sets.
· Display all plugged USB devices in a hierarchical auto-refreshed tree-view.
· View and explore the USB Devices and their components.
· View detailed USB-related information about each USB device: Device Descriptor, Configuration, Interfaces, Endpoints, etc.
· View detailed PnP-related information about each USB device: Hardware IDs, Instance ID, Software Key, PDO Name.
· Real-Time monitoring at any level in the USB driver stack from USB Host Controller to target USB Device.
· Capture several USB devices simultaneously.
· Separate log records for request issue and completion.
· Capture almost all types of USB Request Block (URB).
· URB_FUNCTION_SELECT_CONFIGURATION
· URB_FUNCTION_SELECT_INTERFACE
· URB_FUNCTION_ABORT_PIPE
· URB_FUNCTION_TAKE_FRAME_LENGTH_CONTROL
· URB_FUNCTION_RELEASE_FRAME_LENGTH_CONTROL
· URB_FUNCTION_GET_FRAME_LENGTH
· URB_FUNCTION_SET_FRAME_LENGTH
· URB_FUNCTION_GET_CURRENT_FRAME_NUMBER
· URB_FUNCTION_CONTROL_TRANSFER
· URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER
· URB_FUNCTION_ISOCH_TRANSFER
· URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE
· URB_FUNCTION_SET_DESCRIPTOR_TO_DEVICE
· URB_FUNCTION_SET_FEATURE_TO_DEVICE
· URB_FUNCTION_SET_FEATURE_TO_INTERFACE
· URB_FUNCTION_SET_FEATURE_TO_ENDPOINT
· URB_FUNCTION_CLEAR_FEATURE_TO_DEVICE
· URB_FUNCTION_CLEAR_FEATURE_TO_INTERFACE
· URB_FUNCTION_CLEAR_FEATURE_TO_ENDPOINT
· URB_FUNCTION_GET_STATUS_FROM_DEVICE
· URB_FUNCTION_GET_STATUS_FROM_INTERFACE
· URB_FUNCTION_GET_STATUS_FROM_ENDPOINT
· URB_FUNCTION_VENDOR_DEVICE
· URB_FUNCTION_VENDOR_INTERFACE
· URB_FUNCTION_VENDOR_ENDPOINT
· URB_FUNCTION_CLASS_DEVICE
· URB_FUNCTION_CLASS_INTERFACE
· URB_FUNCTION_CLASS_ENDPOINT
· URB_FUNCTION_SYNC_RESET_PIPE_AND_CLEAR_STALL
· URB_FUNCTION_CLASS_OTHER
· URB_FUNCTION_VENDOR_OTHER
· URB_FUNCTION_GET_STATUS_FROM_OTHER
· URB_FUNCTION_CLEAR_FEATURE_TO_OTHER
· URB_FUNCTION_SET_FEATURE_TO_OTHER
· URB_FUNCTION_GET_DESCRIPTOR_FROM_ENDPOINT
· URB_FUNCTION_SET_DESCRIPTOR_TO_ENDPOINT
· URB_FUNCTION_GET_CONFIGURATION
· URB_FUNCTION_GET_INTERFACE
· URB_FUNCTION_GET_DESCRIPTOR_FROM_INTERFACE
· URB_FUNCTION_SET_DESCRIPTOR_TO_INTERFACE
· URB_FUNCTION_GET_MS_FEATURE_DESCRIPTOR
· URB_FUNCTION_SYNC_RESET_PIPE
· URB_FUNCTION_SYNC_CLEAR_STALL
· Capture almost all types of Kernel-Mode I/O Requests.
· IOCTL_INTERNAL_USB_GET_PORT_STATUS
· IOCTL_INTERNAL_USB_ENABLE_PORT
· IOCTL_INTERNAL_USB_RESET_PORT
· IOCTL_INTERNAL_USB_CYCLE_PORT
· IOCTL_INTERNAL_USB_GET_DEVICE_HANDLE
· IOCTL_INTERNAL_USB_GET_ROOTHUB_PDO
· IOCTL_INTERNAL_USB_GET_HUB_COUNT
· IOCTL_INTERNAL_USB_GET_HUB_NAME
· IOCTL_INTERNAL_USB_GET_CONTROLLER_NAME
· IOCTL_INTERNAL_USB_GET_BUS_INFO
· IOCTL_INTERNAL_USB_SUBMIT_IDLE_NOTIFICATION
· Capture almost all types of User-Mode I/O Requests to USB Host Controller and USB Hub.
· IOCTL_USB_GET_ROOT_HUB_NAME
· IOCTL_GET_HCD_DRIVERKEY_NAME
· IOCTL_USB_HCD_DISABLE_PORT
· IOCTL_USB_HCD_ENABLE_PORT
· IOCTL_USB_HCD_GET_STATS_1
· IOCTL_USB_HCD_GET_STATS_2
· IOCTL_USB_DIAGNOSTIC_MODE_ON
· IOCTL_USB_DIAGNOSTIC_MODE_OFF
· IOCTL_USB_DIAG_IGNORE_HUBS_ON
· IOCTL_USB_DIAG_IGNORE_HUBS_OFF
· IOCTL_USB_GET_NODE_INFORMATION
· IOCTL_USB_GET_NODE_CONNECTION_INFORMATION
· IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX
· IOCTL_USB_GET_NODE_CONNECTION_ATTRIBUTES
· IOCTL_USB_GET_NODE_CONNECTION_NAME
· IOCTL_USB_GET_NODE_CONNECTION_DRIVERKEY_NAME
· IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION
· IOCTL_USB_GET_HUB_CAPABILITIES
· IOCTL_USB_HUB_CYCLE_PORT
· Capture state transition PnP IRPs.
· IRP_MN_START_DEVICE
· IRP_MN_QUERY_REMOVE_DEVICE
· IRP_MN_REMOVE_DEVICE
· IRP_MN_CANCEL_REMOVE_DEVICE
· IRP_MN_STOP_DEVICE
· IRP_MN_QUERY_STOP_DEVICE
· IRP_MN_CANCEL_STOP_DEVICE
· IRP_MN_SURPRISE_REMOVAL
· Automatically capture hot plugged devices. Can be used to monitor device enumeration process.
· Display detailed information about IRP, IO_STACK_LOCATION and URB structures associated with each captured request.
· Display the buffer contents, if any, associated with the request in hex format.
· Configurable filtering to exclude non-essential information from the view.
· Search feature to search the capture log for the particular request types.
· Saving captured requests in binary log file for later viewing.
· Export all or range of log records as plain text, CSV or HTML file.

Requirements:

· Any Intel x86 compatible CPU (233 MHz required, 1 GHz or faster recommended)
· 64 MB of RAM or more (At least 256 MB recommended)
· At least one USB 1.1 or 2.0 Host Controller
· 2 MB of available hard disk space (At least 16 MB of extra disk space for temporary capture file recommended)

Limitations:

· 30 days trial
· Nag screen

What's New in This Release: [ read full changelog ]

· Windows 7 OS support added.
· Minor bug fixes and improvements.