e38eb2c8cb
The newly added file will be used to provide descriptions of how to test the functions of USB gadgets. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
35 lines
733 B
Plaintext
35 lines
733 B
Plaintext
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>
|