0001019: USB mice don't work, however USB storage media do work

ID	Project	Category	View Status	Date Submitted	Last Update

0001019	fss5pv210_Linux	USB host	public	2012-04-23 12:12	2014-01-28 11:41

Reporter	Keller	Assigned To
Priority	normal	Severity	minor	Reproducibility	always
Status	resolved	Resolution	fixed
Product Version	armStoneA8-V1.0
Target Version	armStoneA8-V1.1	Fixed in Version	armStoneA8-V1.1

Summary	0001019: USB mice don't work, however USB storage media do work
Description	USB low-speed and USB full-speed devices don't work if connected directly to the board. However if connected via a USB hub, they do work. Storage devices always work.
Steps To Reproduce	Attach USB stick: will work Attach USB mouse: won't work Attach USB stick again: won't work now, too
Additional Information	The default configuration (and therefore kernel image) only hat EHCI driver enabled. This will work with high-speed devices, but not low-speed devices. However if a low-speed or full-speed device is connected via a high-speed USB hub, the hub does a speed conversion. Then the device is seen as high-speed device and the EHCI controller can even talk to a USB low-speed mouse. But if connected directly to the board, it must be accessed as low-speed device and then the OHCI driver is required. So the solution is to enable both drivers, EHCI and OHCI, in the default configuration.

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