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Commit 480a912b authored by Andrzej Pietrasiewicz's avatar Andrzej Pietrasiewicz Committed by Felipe Balbi
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Documentation: usb: SOURCESINK function testing 



Summary of how to test SOURCESINK function of USB gadget.

Signed-off-by: default avatarAndrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 4dfcec8a

Documentation/usb/gadget-testing.txt

+27 −0
Original line number Diff line number Diff line
@@ -15,6 +15,7 @@ provided by gadgets. 
12. PHONET function

13. RNDIS function

14. SERIAL function

15. SOURCESINK function





1. ACM function
@@ -560,3 +561,29 @@ then the other way round 


On target: cat > /dev/ttyGS<Y>

On host: cat /dev/ttyUSB<X>



15. SOURCESINK function

=======================



The function is provided by usb_f_ss_lb.ko module.



Function-specific configfs interface

------------------------------------



The function name to use when creating the function directory is "SourceSink".

The SOURCESINK function provides these attributes in its function directory:



	pattern		- 0 (all zeros), 1 (mod63), 2 (none)

	isoc_interval	- 1..16

	isoc_maxpacket	- 0 - 1023 (fs), 0 - 1024 (hs/ss)

	isoc_mult	- 0..2 (hs/ss only)

	isoc_maxburst	- 0..15 (ss only)

	bulk_buflen	- buffer length



Testing the SOURCESINK function

-------------------------------



device: run the gadget

host: test-usb



http://www.linux-usb.org/usbtest/testusb.c