[Bug 204521] [new driver] [request] Port rtsx from OpenBSD to FreeBSD

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204521

--- Comment #36 from Gary Jennejohn <gljennjohn at gmail.com> ---
(In reply to Lyubomir from comment #35)
Thanks for the offer.  I did some research and the Realtek controllers used in
laptops are basically black boxes.  They consist of a module with the
electronics and the SD card holder and then a rather long cable which gets
routed to a connecotr on the motherboard.  I was not able to find any
documentation on the cable pinout.  Without that information it would not be
possible to connect the SALEAE logic analyzer (I have two of them) to get
useful traces.  So my idea to do this was not so good.

At one time there were PCIe cards with suitable Realtek controllers, but I
haven't been able to find any on e.g. eBay.  The cards now available no longer
use Realtek.

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