SDHCI Device Driver (first steps)
Oliver Fromme
olli at lurza.secnetix.de
Mon Sep 18 04:27:10 PDT 2006
Marian Asokarajan wrote:
> I'm trying to write an universal SD Host-Controller Device Driver,
> which I'd like to contribute to the FreeBSD community.
That's very cool!
> So far the driver is able to recognize SD card insertion and removal.
> Via a device node (/dev/sdhci0), it's also possible to dump
> the SDHC's register set.
>
> Could someone please help testing the code ?
> The kernel module and sources can be download here:
> http://www.sashi.de/downloads/freebsd/sdhci/sdhcidd-0.0.1.tbz
> * NOTE: The driver is experimental and might crash your system!
For which version of FreeBSD is it? I'm running RELENG_6 on
my notebook, which has two such slots (one for SD cards and
one Sony memory sticks). If your driver works on RELENG_6,
I can try it when I have some free time.
none3 at pci6:9:2: class=0x080500 card=0xc01a144d chip=0x08221180 rev=0x17 hdr=0x00
vendor = 'Ricoh Co Ltd'
device = 'SD Bus Host Adapter'
class = base peripheral
none4 at pci6:9:3: class=0x088000 card=0xc01a144d chip=0x05921180 rev=0x08 hdr=0x00
vendor = 'Ricoh Co Ltd'
device = 'Memory Stick Bus Host Adapter'
class = base peripheral
It's a Samsung X20-XVM 1600-V notebook (Pentium-M / Centrino
with i915 chipset). I like it very much, because all of the
components are supported by FreeBSD, except for the SD and
memory stick slots. I don't have any memory sticks, so I
don't care, but I do have an SD card which I use with my
Zaurus PDA (running Linux), and it would be very nice to
access it directly with the notebook, without having to use
a USB cardreader.
Best regards
Oliver
--
Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing
Dienstleistungen mit Schwerpunkt FreeBSD: http://www.secnetix.de/bsd
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