[Balloon] Re: USB master chip

Top Page
Attachments:
Message as email
+ (text/plain)
Delete this message
Reply to this message
Author: Wookey
Date:  
To: balloon
Subject: [Balloon] Re: USB master chip
+++ Wookey [03-11-27 18:33 +0000]:
> +++ James [03-11-27 17:38 +0000]:
> >
> I recall Nick asked me to check out the licensing on these drivers/devices a
> while ago and I haven't done it yet. I'll have a proper look tomorrow. Must
> dash.


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.

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.

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.

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.

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'.

that'll have to do for now - I'm off...

Wookey
-- 
Aleph One Ltd, Bottisham, CAMBRIDGE, CB5 9BA, UK  Tel +44 (0) 1223 811679
work: http://www.aleph1.co.uk/     play: http://www.chaos.org.uk/~wookey/