[deliverable/linux.git] / Documentation / usb / gadget-testing.txt

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>
Commit	Line	Data
e38eb2c8 AP	1	This file summarizes information on basic testing of USB functions
	2	provided by gadgets.
	3
	4	1. ACM function
	5
	6
	7	1. ACM function
	8	===============
	9
	10	The function is provided by usb_f_acm.ko module.
	11
	12	Function-specific configfs interface
	13	------------------------------------
	14
	15	The function name to use when creating the function directory is "acm".
	16	The ACM function provides just one attribute in its function directory:
	17
	18	port_num
	19
	20	The attribute is read-only.
	21
	22	There can be at most 4 ACM/generic serial/OBEX ports in the system.
	23
	24
	25	Testing the ACM function
	26	------------------------
	27
	28	On the host: cat > /dev/ttyACM<X>
	29	On the device : cat /dev/ttyGS<Y>
	30
	31	then the other way round
	32
	33	On the device: cat > /dev/ttyGS<Y>
	34	On the host: cat /dev/ttyACM<X>