"Mikkel L. Ellertson" <mikkel@xxxxxxxxxxxxxxxx> wrote:
Is this a built in SD card reader on a laptop or some kind of external
> reader with say a USB interface? I very recently researched getting the
> SD card reader on my laptop to read SD cards under Linux (of any flavor)
> and found out that the interface specification for SD is "encumbered"
> (patents, copyright) in such a way that it is doubtful that an open
> source Linux driver can be legally provided. Things may have changed or
> I could have missed something but that's what I found. A USB device
> should hide such details from Linux and just present a mass storage
> interface.
>
> Cheers,
> Dave
>
I think thing have changed, because I can use the SD reader in my
laptop that used the TI chipset. I did have to run a command on
startup that would turn off the Multi-Media reader, and turn on the
SD reader, but I am not sure if that is still necessary.
Mikkel
You wouldn't by any chance have a pointer to how to do such things?
lspci for my laptop shows:
03:04.4 Class 0805: Texas Instruments
PCI6411/6421/6611/6621/7411/7421/7611/7621 Secure Digital Controller
Subsystem: Hewlett-Packard Company Unknown device 3085
Flags: bus master, medium devsel, latency 64, IRQ 23
Memory at b020a000 (32-bit, non-prefetchable) [size=256]
Memory at b0208c00 (32-bit, non-prefetchable) [size=256]
Memory at b0208800 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
I got a new digital camera for Christmas that uses SD memory so I
googled to see if I could get the card reader that's built in to my
laptop to work with it. Everything I found was all about how the SD
consortium had patented certain aspects of accessing SD memory and would
only license the information under non-disclosure and for a fee both of
which made an open source driver problematic. I guess I just found old
articles.
Cheers,
Dave
--
Politics, n. Strife of interests masquerading as a contest of principles.
-- Ambrose Bierce
