Summary of how to test SERIAL function of USB gadget. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx> --- Documentation/usb/gadget-testing.txt | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/Documentation/usb/gadget-testing.txt b/Documentation/usb/gadget-testing.txt index 61bc5f5..bc57c65 100644 --- a/Documentation/usb/gadget-testing.txt +++ b/Documentation/usb/gadget-testing.txt @@ -14,6 +14,7 @@ provided by gadgets. 11. OBEX function 12. PHONET function 13. RNDIS function +14. SERIAL function 1. ACM function @@ -529,3 +530,33 @@ Configure IP addresses of the device and the host. Then: On the device: ping <host's IP> On the host: ping <device's IP> + +14. SERIAL function +=================== + +The function is provided by usb_f_gser.ko module. + +Function-specific configfs interface +------------------------------------ + +The function name to use when creating the function directory is "gser". +The SERIAL 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 SERIAL function +--------------------------- + +On host: insmod usbserial + echo VID PID >/sys/bus/usb-serial/drivers/generic/new_id +On host: cat > /dev/ttyUSB<X> +On target: cat /dev/ttyGS<Y> + +then the other way round + +On target: cat > /dev/ttyGS<Y> +On host: cat /dev/ttyUSB<X> -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
