Re: [Balloon] Re: USB master chip

Wookey

> Right - I didn't really manage to do this but it does appear that Cypress
> provide a driver on an unspecified 'as is' licence, and lineo provide a
> GPLed driver. Both of these were initially for the SL811 chip but appear
to
> also support the CY7C67200, presumably because it's similar.
>
This is what I found too (though lineo now seem to be metrowerks that don't
mention usb support etc). However there seems to be little or no traffic
about the chip with linux drivers (Google-able anyway) so I am concerned
that the support isn't actually there. Certainly a SL811 driver is
incorporated into 2.6 which is encouraging.

> Trandimension just say 'our chips are supported by linux 2.4.x via the
> community development process'. Everything works but don't ask us about
it.
>
Yes but no explicit GPL'd code.

> This info comes from the web, as opposed to the kernel sources (where I
> failed to find the relevant drivers with a bit of greping - Nick did you
> work out which files are actually relevant/responsible?) so it's
> not exactly definitive.
>
The cerf drivers are the TD drivers with no explicit copyright suggesting
one can redistribute them. Do you need a copy?

> So my initial feeling is that we won't have any undue difficulties going
> with either of these manufacturers/devices, and should design 2.06 on that
> basis, but it would be smart to get some rather more explicit statements
on
> the licensing and operating state of the drivers, and find out how people
> who are actually using them are getting on.
>
Agreed.

> I assume someone hardwarey is doing the 'perusal of the datasheets' for
> gotchas like the phillips 'far too many interrupts, and don't miss any'.
>
I'll defer to SW/DB for comments here.

Nick