Quadros Unveils RNDIS For USB Software Solution

Quadros Systems has announced a remote NDIS (network driver interface standard) driver for its USB software suite. RNDIS is said to offer embedded developers an easy way to connect a Windows-based laptop or PC to an embedded. One application gives technicians and field personnel access to deployed systems using a laptop and USB cable. RNDIS is a standard in the Microsoft Windows operating system and is designed for use with plug-and-play buses such as USB.

Embedded systems require a special library to connect to a Windows-based computer using this standard. When a PC is connected to the embedded system the RNDIS interface enables a standard TCP/IP connection over USB. The web browser on the laptop can then view dynamic web pages served up by the http server in the embedded system. Such pages could include device status, maintenance schedules, system logs, and other information.

Quadros Systems provides all of the software components to support an RNDIS interface including USB device stack, RNDIS driver and the RTXC Quadnet TCP/IP software and web server, which makes possible the exchange of Ethernet-like communications. The RTXCusb RNDIS driver is a standard implementation for USB connectivity to a PC or laptop and does not require any custom Windows drivers. RTXCusb is a suite of stacks, class drivers and controller drivers for host, device and OTG implementations in embedded devices.

It supports USB 1.1 and 2.0. This solution was specifically developed to support embedded developers who want to integrate USB plug-and-play functionality into their products. The RTXCusb host software supports OHCI, UHCI and EHCI standards side and offers class drivers for mass storage, human interface (HID) and printer. Device-side drivers include mass storage, serial emulation and, now, RNDIS. The RTXCusb class driver structure is readily extensible to support other classes and applications.

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