TECHSHIP IS A GLOBAL SUPPLIER OF WIRELESS COMPONENTS
The Techship Starter kit for Huawei ME909s is a complete easy-to-use testing platform for the Huawei ME909s.
The starter kit uses a Mini PCI Express to USB adapter board with
standard SIM card push connector and external power cable for USB power adapters included.
Besides the board this kit contains 2 pcs u.fl.-SMA-F interface cables, 2 pcs T-blade antennas and 1 pcs Huawei ME909s-120 mPCIe module.
For more information about Huawei MU709s please see 10278, Huawei ME909s-120 mPCIe.
This guide instructs the kernel driver integration development for Huawei modules based on Linux operating system (OS), such as Android, Ubuntu and Chrome OS. It is intended for the driver developers of the products based on Linux kernel OS.
This guide will make it easier to migrate from one Huawei module to another. This version also includes the ME909s modules.
This guide describes a workaround method for how to enable the serial (AT/NMEA) interfaces in Windows 8 and 10 for Huawei HiSilicon based cellular modules that normally only expose MBIM interface.
This archive contains the guide, library and sample code for accessing Huawei extended AT commands over MBIM interface in Microsoft Windows 8 and newer systems where no AT serial ports are available from Huawei Modules.
This archive contains the Windows drivers for Huawei modules with HiSilicon chipset
This archive contains the Windows drivers V.5.06.04.05 for Huawei modules with HiSilicon chipset
HUAWEI only provides Windows CE driver package. It is a stream driver framework. MDD (Model Device Driver) layer supplies the serial device's interface, and PDD (Platform Dependent Driver) layer is responsible for interacting with USB stack. Please refer to MSDN (Microsoft Developer Network) for more information.
How-to change the cellular modulesUSB composition mode to Mobile Broadband Interface Model (MBIM) used by Windows 8 and 10 systems for controlling and establishing data connectivity through the built-in connection manager in Windows?
This is done by sending a set of AT commands to the cellular modules Modem or AT serial interface found in Windows Device Manager. Please see list below for associated AT commands.
(For additional details, refer to the product specific software, ports, and AT commands guides found on the Techship product web pages under technical documentation tab).
After the AT commands have been received by the module and has restarted, the USB interface endpoint composition should have changed to include MBIM interface as well.
You can find the correct Serial COM port number by checking Windows Device Manager, under the Modems drop down -> (right click and see properties for selected COM port info) or under the Ports (COM & LPT) drop down.
Vendor specific commands to use:
Sierra Wireless EM74xx, MC74xx series module:
(See test command AT!USBCOMP=? for full usage description)
Sierra Wireless EM75xx series module:
(See test command AT!USBCOMP=? for full usage description)
Sierra Wireless EM73xx, MC73xx series module:
Simcom SIM7100, SIM7500 and SIM7600 series modules:
ZTE Welink ME3630 series:
Telit LE910C1 and LE910C4 series:
Telit LM940 and LM940A11:
Telit LM960 and LM960A18:
Telit LE910 V2 series:
On Huawei and Telit LN94x series modules the USB mode changing is done automatically by the modules Windows drivers based on current Windows version.
Please be aware that some USB mode configurations do not include any serial interfaces, making it impossible to revert the changes using AT commands.
What Linux kernel modules and configs are commonly used for communicating with cellular modules over their USB interface?
Most cellular modules can be supported in Linux by using som of the in-kernel drivers. The physical data interface to the host Linux system is usually done over USB which enumerates a set of different endpoints/interfaces. A set of serial interfaces for Modem/PPP, AT commands, NMEA location data and chipset debug information are almost always available in all configurations.
In addition some type of network endpoint/interface are also available and exposed. This can vary between manufacturers and chipset vendors and can also commonly be configurable by using USB configuration mode switching or through vendor specific AT commands.
Recommended kernel configurations to enable are listed bellow. Many cellular modules base their Linux support on these modules and drivers. Once included in the kernel build, the USB interfaces will be detected and bound correctly out-of-the-box or after applying source code patches to the driver modules.
Configs for USB serial drivers:
Configs for Modem/PPP support:
Configs for USB network drivers:
Please relate to the Techship product specific web pages for vendor specific Linux integration guides.
Below is a selection of kernel commits relating to cellular module support in Linux kernels:
qmi_wwan: Add support for Fibocom NL678 series
qmi_wwan: Added support for Telit LN940 series
qmi_wwan: Added support for Fibocom NL668 series
USB: serial: option: add support for GosunCn ME3630 RNDIS mode
USB: serial: option: add support for Simcom SIM7500/SIM7600 RNDIS mode
USB: serial: option: add Simcom SIM7500/SIM7600 (MBIM mode)
USB: serial: option: add Fibocom NL678 series
USB: serial: option: add Telit LN940 series
USB: serial: option: add Fibocom NL668 series
USB: serial: option: add GosunCn ZTE WeLink ME3630
qmi_wwan: apply SET_DTR quirk to the SIMCOM shared device ID
If you use any of the listed cellular modules, drivers and specified USB modes in the commits above, ensure that your kernel version already include the patch or apply it to your build.
Why is there no serial interface for AT-commands available in Microsoft Windows 8/10 and newer, while in Windows 7 all the traditional module serial interfaces are available?
Microsoft demands cellular module vendors to use the Mobile Broadband Interface Model (MBIM) interface for signaling in newer operating systems like Windows 8 and 10 rather than the previous serial based control channels with AT commands.
The serial ports are phased out and enumeration in the host system of these are dropped by many manufacturers because of Microsofts requirements.
The connections can be controlled graphically in Windows by the systems built in connection manager as well as by commands in the command prompt starting with: netsh mbn
Microsoft: Overview of mobile broadband