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Diffstat (limited to 'Documentation/usb/gadget-testing.txt')
| -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 000000000000..2a448f812f0e --- /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> |