For example they consist of a certain device class, but also an USB disk that has all the necessary drivers stored so that the device can be installed automatically, without the need to have access to a certain driver software. The communications device class is used for computer networking devices akin to a network card, providing an interface for transmitting Ethernet or ATM frames onto some physical media.Īn USB Composite Device is a peripheral device that supports more than one device class. USB communications device class (or USB CDC class) is a composite Universal Serial Bus device class. Refer to: CDC: Communication Device Class for an overview of the CDC class. The CDC ACM class in the USB Host Component is used for attaching communication devices to your system. USB CDC (Communications Device Class) ACM (Abstract Control Model) is a vendor-independent publicly documented protocol that can be used for emulating serial ports over USB.įurthermore, what is CDC Abstract Control Model ACM? USB Host functions to support Communication Device Class ( CDC) Abstract Control Model ( ACM) USB Devices. dev/ttyACM0 or COM1:) and as a USB thumb drive (e.g. This allows the device to be registered on a host computer as a seral port (e.g. To install the device on Linux Kernel 2.6.x and newer with CDC/ACM support, connect USB cable from the device to a USB port on your computer. The CDC ACM + Linux gadget MS driver is a USB composite gadget driver which implements the serial communication and mass storage functions. The Linux OS includes a generic USB driver for modems supporting CDC/ACM.
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