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This file summarizes information on basic testing of USB functions
provided by gadgets.

1. ACM function


1. ACM function
===============

The function is provided by usb_f_acm.ko module.

Function-specific configfs interface
------------------------------------

The function name to use when creating the function directory is "acm".
The ACM function provides just one attribute in its function directory:

	port_num

The attribute is read-only.

There can be at most 4 ACM/generic serial/OBEX ports in the system.


Testing the ACM function
------------------------

On the host: cat > /dev/ttyACM<X>
On the device : cat /dev/ttyGS<Y>

then the other way round

On the device: cat > /dev/ttyGS<Y>
On the host: cat /dev/ttyACM<X>