Priest of the Order of the Butterfly
Posts: 874 from 2007/4/9
From: Kingston upon ...
@Andreas
Quote:
Andreas wrote:
Is it really chip specific? I was under the impression that the EHCI protocol abstracts from the actual USB host controller chip internals so once that requested feature is implemented it would (or at least should) work with every EHCI compliant USB host controller.
To be quite honest Andreas, I have no idea. I have, however, found a couple of patches from NEC for the generic Linux EHCI driver which implement isochronous- and bulk- transfers respectively for this particular chip.
I don't know if just the control- and interrupt- transfer modes are the only generic part of the driver, or if these are workarounds for 'features' which are particular to this chip (ie bugs, or non-conformancies with the EHCI spec).
[ Edited by boot_wb on 2010/8/3 16:55 ]
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