View Issue Details

IDProjectCategoryView StatusLast Update
0001019fss5pv210_LinuxUSB hostpublic2014-01-28 11:41
ReporterKeller Assigned To 
Status resolvedResolutionfixed 
Product VersionarmStoneA8-V1.0 
Target VersionarmStoneA8-V1.1Fixed in VersionarmStoneA8-V1.1 
Summary0001019: USB mice don't work, however USB storage media do work
DescriptionUSB 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 ReproduceAttach USB stick: will work
Attach USB mouse: won't work
Attach USB stick again: won't work now, too
Additional InformationThe 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.
Forum Link


There are no notes attached to this issue.