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authorAndrzej Pietrasiewicz <andrzej.p@samsung.com>2014-12-16 13:56:37 (GMT)
committerFelipe Balbi <balbi@ti.com>2015-01-12 18:13:25 (GMT)
commitddb722449cfcfe30d3c3ed2cd404551e1c3c3670 (patch)
treed366f090ca562cceb788ee7c0a1e3e822f92e6d4 /Documentation/usb
parentda2907d2b08c2495c2e39f799b9ccbf76fd1aa58 (diff)
Documentation: usb: RNDIS function testing
Summary of how to test RNDIS function of USB gadget. 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.txt36
1 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/usb/gadget-testing.txt b/Documentation/usb/gadget-testing.txt
index 02d4366..61bc5f5 100644
--- a/Documentation/usb/gadget-testing.txt
+++ b/Documentation/usb/gadget-testing.txt
@@ -13,6 +13,7 @@ provided by gadgets.
10. NCM function
11. OBEX function
12. PHONET function
+13. RNDIS function
1. ACM function
@@ -493,3 +494,38 @@ $ ./pnxmit -a 0x10 -r
On the device:
$ ./pnxmit -a 0x6c -s 0x10
+
+13. RNDIS function
+==================
+
+The function is provided by usb_f_rndis.ko module.
+
+Function-specific configfs interface
+------------------------------------
+
+The function name to use when creating the function directory is "rndis".
+The RNDIS function provides these attributes in its function directory:
+
+ ifname - network device interface name associated with this
+ function instance
+ qmult - queue length multiplier for high and super speed
+ host_addr - MAC address of host's end of this
+ Ethernet over USB link
+ dev_addr - MAC address of device's end of this
+ Ethernet over USB link
+
+and after creating the functions/rndis.<instance name> they contain default
+values: qmult is 5, dev_addr and host_addr are randomly selected.
+Except for ifname they can be written to until the function is linked to a
+configuration. The ifname is read-only and contains the name of the interface
+which was assigned by the net core, e. g. usb0.
+
+By default there can be only 1 RNDIS interface in the system.
+
+Testing the RNDIS function
+--------------------------
+
+Configure IP addresses of the device and the host. Then:
+
+On the device: ping <host's IP>
+On the host: ping <device's IP>

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