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| author | Andrzej Pietrasiewicz <andrzej.p@samsung.com> | 2014-12-16 14:56:25 +0100 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-01-12 12:13:24 -0600 |
| commit | e38eb2c8cb435729579576b2b5bc5247ebcd6f5b (patch) | |
| tree | 3e7735bda61774ddb07c768aed0a9c9eab1d226a /Documentation/usb | |
| parent | b797ef4e167b68dc5d6bfcb1b77f7f077dddb825 (diff) | |
| download | linux-0-day-e38eb2c8cb435729579576b2b5bc5247ebcd6f5b.tar.gz linux-0-day-e38eb2c8cb435729579576b2b5bc5247ebcd6f5b.tar.xz | |
Documentation: usb: ACM function testing
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>
Diffstat (limited to 'Documentation/usb')
| -rw-r--r-- | Documentation/usb/gadget-testing.txt | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/usb/gadget-testing.txt b/Documentation/usb/gadget-testing.txt new file mode 100644 index 0000000000000..2a448f812f0e0 --- /dev/null +++ b/Documentation/usb/gadget-testing.txt @@ -0,0 +1,34 @@ +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> |