Date: Wed, 11 Jan 2006 10:32:16 -0800 From: "Darren Pilgrim" <darren.pilgrim@bitfreak.org> To: "'M. Warner Losh'" <imp@bsdimp.com> Cc: freebsd-hackers@freebsd.org Subject: RE: Ricoh PCI to SD device? Message-ID: <002301c616dd$5ca99940$672a15ac@smiley> In-Reply-To: <20060110.234350.82839919.imp@bsdimp.com>
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From: M. Warner Losh [mailto:imp@bsdimp.com]=20 > In message: <001401c61676$3fa0c290$672a15ac@smiley> > "Darren Pilgrim" <darren.pilgrim@bitfreak.org> writes: > : From: Brooks Davis > : > On Mon, Jan 09, 2006 at 11:12:30AM -0500, David Gilbert wrote: > : > > Has anyone had a look at the following: > : > > > : [ Ricoh SD Bus Host Adapter, PCI ID 0x08221180 ] > : >=20 > : > People are looking at it, but there are no docs available. > : > Apparently, there is some work being done to reverse engineer > : > it. Linux doesn't support it either. > :=20 > : That's odd, because Ricoh provides technical documentation upon > : request via the LSI Contact Us[1] page on their website. > :=20 > : 1: http://www.ricoh.com/LSI/mail.html >=20 > Are you sure they provide technical documentation sufficent to write > the driver? The last time I asked, I got a nice document that said > that it implemented the sds standard sd host interface, but didn't > document what that was. TI and winbond chips datasheets are the same > way. Prove me wrong. I'd love it :-) The SD protocols aren't open standards. Ricoh can't legally include information about the protocols in their documentation. Without working implementation of the SDA's standards, FreeBSD is stuck. I don't blame = the funding behind FreeBSD development for not ponying up the dosh; I think = such fees are extortion made legal by intellectual property laws. But hey, it's the business. It's not like we're trying to make a good, = free product everyone can use, right?
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