[U-Boot-Users] USB Host support

Junior ejr at inbox.com
Thu Jun 28 17:35:15 CEST 2007


> Junior <ejr at inbox.com> writes:
> 
>> Just an inquiry on the USB host support.
>> I've been thinking about ading USB host support to my u-boot port but
>> I'm not
>> sure what current infrastructure is there to make this painless.
>> Is there a generic interface for this, or is this done on a platform
>> by platform basis?
> 
> The higher level interfaces are all in place and there are drivers for
> different controllers such as OHCI and UHCI. Some of these controller
> drivers are still board dependant, but we're in the progress of merging
> them together into one generic driver. If you happen to have an OHCI
> Controller, don't miss "doc/README.generic_usb_ohci".


Hi Markus,
I could not find this README document in any source and I just pulled the git source.
Any idea where it is?



>> My motive here is to be able to detect a usb memory stick and be able
>> to read and write to to it. Have anyone been suscessfull in doing
>> this? This would be done on an ARM9 platform.
> 
> Writing is not supported so far, but reading works fine on a number of
> architectures and boards.

reading is really what I'm primary looking for.

Thanks,
--Jr.

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