Shimano Port Devices Driver Download For Windows

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Versions supported

  • Windows 10
  • Windows 8.1

Applies to

  • Device manufacturers of CDC Control devices

Microsoft-provided in-box driver (Usbser.sys) for your Communications and CDC Control device.

In Windows 10, the driver has been rewritten by using the Kernel-Mode Driver Framework that improves the overall stability of the driver.

  • Improved PnP and power management by the driver (such as, handling surprise removal).
  • Added power management features such as USB Selective Suspend.

In addition, UWP applications can now use the APIs provided by the new Windows.Devices.SerialCommunication namespace that allow apps to talk to these devices.

Usbser.sys installation

Shimano Port Devices Driver Download For Windows

Load the Microsoft-provided in-box driver (Usbser.sys) for your Communications and CDC Control device.

Note

If you trying to install a USB device class driver included in Windows, you do not need to download the driver. They are installed automatically. If they are not installed automatically, contact the device manufacturer. For the list of USB device class driver included in Windows, see USB device class drivers included in Windows.

Windows 10

In Windows 10, a new INF, Usbser.inf, has been added to %Systemroot%Inf that loads Usbser.sys as the function device object (FDO) in the device stack. If your device belongs to the Communications and CDC Control device class, Usbser.sys is loaded automatically.You do not need to write your own INF to reference the driver. The driver is loaded based on a compatible ID match similar to other USB device class drivers included in Windows.

USBClass_02

USBClass_02&SubClass_02

  • If you want to load Usbser.sys automatically, set the class code to 02 and subclass code to 02 in the Device Descriptor. For more information, see USB communications device class. With this approach, you are not required to distribute INF files for your device because the system uses Usbser.inf.
  • If your device specifies class code 02 but a subclass code value other than 02, Usbser.sys does not load automatically. Pnp Manager tries to find a driver. If a suitable driver is not found, the device might not have a driver loaded. In this case, you might have to load your own driver or write an INF that references another in-box driver.
  • If your device specifies class and subclass codes to 02, and you want to load another driver instead of Usbser.sys, you have to write an INF that specifies the hardware ID of the device and the driver to install. For examples, look through the INF files included with sample drivers and find devices similar to your device. For information about INF sections, see Overview of INF Files.

Note

Microsoft encourages you to use in-box drivers whenever possible. On mobile editions of Windows, such as Windows 10 Mobile, only drivers that are part of the operating system are loaded. Unlike desktop editions, it is not possible to load a driver through an external driver package. With the new in-box INF, Usbser.sys is automatically loaded if a USB-to-serial device is detected on the mobile device.

Windows 8.1 and earlier versions

In Windows 8.1 and earlier versions of the operating system, Usbser.sys is not automatically loaded when a USB-to-serial device is attached to a computer. To load the driver, you need to write an INF that references the modem INF (mdmcpq.inf) by using the Include directive. The directive is required for instantiating the service, copying inbox binaries, and registering a device interface GUID that applications require to find the device and talk to it. That INF specifies 'Usbser' as a lower filter driver in a device stack.

The INF also needs to specify the device setup class as Modem to use mdmcpq.inf. Under the [Version] section of the INF, specify the Modem and the device class GUID. for details, see System-Supplied Device Setup Classes.

For more information, see this KB article.

Configure selective suspend for Usbser.sys

Starting in Windows 10, Usbser.sys supports USB Selective Suspend. It allows the attached USB-to-serial device to enter a low power state when not in use, while the system remains in the S0 state. When communication with the device resumes, the device can leave the Suspend state and resume Working state. The feature is disabled by default and can be enabled and configured by setting the IdleUsbSelectiveSuspendPolicy entry under this registry key:

To configure power management features of Usbser.sys, you can set IdleUsbSelectiveSuspendPolicy to:

  • '0x00000001': Enters selective suspend when idle, that is, when there are no active data transfers to or from the device.

  • '0x00000000': Enters selective suspend only when there are no open handles to the device.

That entry can be added in one of two ways:

  • Write an INF that references the install INF and add the registry entry in the HW.AddReg section.

  • Describe the registry entry in an extended properties OS feature descriptor. Add a custom property section that sets the bPropertyName field to a Unicode string, 'IdleUsbSelectiveSuspendPolicy' and wPropertyNameLength to 62 bytes. Set the bPropertyData field to '0x00000001' or '0x00000000'. The property values are stored as little-endian 32-bit integers.

    For more information, see Microsoft OS Descriptors.

Develop Windows applications for a USB CDC device

If you install Usbser.sys for the USB CDC device, here are the application programming model options:

  • Starting in Windows 10, a Windows app can send requests to Usbser.sys by using the Windows.Devices.SerialCommunication namespace. It defines Windows Runtime classes that can use to communicate with a USB CDC device through a serial port or some abstraction of a serial port. The classes provide functionality to discover such serial device, read and write data, and control serial-specific properties for flow control, such as setting baud rate, signal states.

  • In Windows 8.1 and earlier versions, you can write a Windows desktop application that opens a virtual COM port and communicates with the device. For more information, see:

    Win32 programming model:

    • .NET framework programming model:

Related topics

Published September 8, 2019 by BetterShifting, Last updated January 24, 2021

Modern Di2 is basically a couple of controllers and servo motors that communicate with each other using the EW-SD50 wires. Shimano lets end-users configure their own Di2 systems using their e-tube project software. This page explains how to connect your bike to your computer.

Requirements - Road/MTB/GRX/Urban vs E-Bike

Shimano Port Devices Driver Download For Windows

Connecting a Di2 bike to a Windows computer is done via the charging / interface port on the Junction A.

Shimano Port Devices Driver Download For Windows 10

Modern road bikes, mountain bikes and gravel bikes will all have this junction and the required interface / charge port. Some urban bikes will too.

However, STEPS E-bikes or E-MTBs generally use a display without this port. Also, most E-bikes use larger, external batteries and they do not come with the SM-BCR2 charger. If your bikes is one of these I'm afraid you're out of luck - you can only connect your bike to a Windos computer using the SM-PCE1/SM-PCE02 diagnostics device.

Older road bikes with external batteries and the SM-EW67A junction can only be connected using the SM-PCE1/SM-PCE02 diagnostics device.

Locate the charging / interace port

You probably know where the charging port is - but just in case you don't, have a look at this image:

Make sure you have either the SM-PCE1/SM-PCE02 diagnostics device or the SM-BCR2 charger. Also, download an up to date version of the E-Tube Project software.

Connect using e-Tube Project

Plug your charger into the junction box and connect the other end to your computer – the order doesn’t really matter, but I tend to plug the connector into the bike first. Start the e-Tube Project software. Then just click the 'Next' button.

If you haven't already, the software will tell you to connect your SM-PCE1/02 or SM-BCR2.

It’ll then tell you that charging has stopped because you’ve connected the bike to the computer and started the software.

Also, it will tell you to use the disconnect button when you're done and then start unit recognition.

When the connection has been made successfully you will be show the Customize tab. This is where you can set up or tweak each component.

Cannot connect using the SM-BCR2? Need to update it?

When Shimano released E-Tube Project 4 they also introduced a lot of bugs. One of those actually prevents you from connecting to your bike using the SM-BCR2.

E-Tube Project displays a message, but won't actually update the SM-BCR2:

SM-BCR2 recognition. The process is interrupted because the version of SM-BCR2's firmware is old. Connect to the Internet and download the latest version of the firmware.

Now.. the workaround is relatively simple, if not a bit frustrating.

You need to download E-Tube Project 3.4.5 and update the SM-BCR2 that way. After that it's safe to use E-Tube Project 4.

E-Tube Project 3.4.5 can be found on the Shimano E-Tube Project site, or through this direct download link.

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View installed components

Sometimes it is useful to see the list of installed components. When troubleshooting unresponsive components for example. By checking the list of installed and connected components you can figure out what part of the Di2 'circuit' is broken. Almost all components are listed on the Update tab.

Shimano Port Devices Driver Download For Windows 7

If a component isn't listed here that means that it either isn't connected or it doesn't have any firmware that can be updated. Junction B (SM-JC41 / SM-JC40) and the external battery won't show up here for example.

Done? Use the disconnect button

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When you're done please use the disconnect button as seen at the top left of the window. If you do not, the bike may not respond or may end up draining the system battery until you reconnect it. It isn't hard, but it is something to keep in mind.

Other things you can do with E-Tube Project:

Shimano Port Devices Driver Download For Windows 7

Questions? Leave a comment or send me a message.