On Wednesday 26 July 2006 4:59 am, Manish RATHI wrote:
> Hi,
> I've to develop driver for mentor graphics usb controller. 

Which one?  There are several, with variants.


> It's available on sourceforge.net but no documentation is there.

Got URL?  I know that Mentor's code for the HDRC is basically not
worth looking at; it's a pile of patches that don't work correctly
on any kernel version.

There's a fork that works reasonably well with various TI parts
(DaVinci, OMAP 2430, TUSB 6010) but hasn't yet had any host side
updates for the post-2.6.10 kernels.


> What's the purpose of generic hcd driver?

There is no such thing.  There's some reusable HCD "framework"
code though, which handles a lot of what the old 2.2-based
"usb_operations" interface either requred each HCD to duplicate
(root hub stuff etc) or couldn't handle (notably proper shutdown
on unplug/unbind).

- Dave

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