[ltp] X240 NFC

[Leon Weber]

--NzB8fVQJ5HfG6fxh
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

Hi all,

Can anyone provide some clarification on the following issue, Peter
maybe?

I=E2=80=99m trying to play around with the NFC module in the X240, but it s=
eems
hard to find information on that.  I=E2=80=99m not even sure which module t=
hat
is.  Lenovo=E2=80=99s FRU list suggests it might be a =E2=80=9CFoxconn 2079=
2S=E2=80=9D, but then
the Windows driver download page[1] mentions Broadcom.  How does this
fit together?  Is it a Broadcom chip that Foxconn soldered on a PCB and
made into a complete NFC module?

Then again, there=E2=80=99re mentions in the internet that the previous Thi=
nkpad
generation used the NXP NP533 module, for which there is a driver in the
3.13 linux kernel that I could not get working (neither lsnfc from
nfcutils[2] nor nfctool from the neard package[3] would show any NFC
devices).  I also tried the PN544 driver without luck.

Outputs of lspci and lsusb aren=E2=80=99t very helpful to me, there=E2=80=
=99s nothing
there that I=E2=80=99d recognize as NFC.  Strangely the Hardware Maintenance
Manual doesn=E2=80=99t mention NFC at all.

I was starting to think I might not even have an NFC module, but the
invoice clearly mentions it and there=E2=80=99s also an NFC setting in the =
BIOS
(which is set to Enabled).

Any suggestions?  What make of NFC module does Lenovo build into the
X240 (and the othe Haswell Thinkpads)?  Are there any Linux drivers
available?

    -- Leon.


[1]: <http://support.lenovo.com/en_US/downloads/detail.page?DocID=3DDS03591=
2>
[2]: <https://code.google.com/p/nfc-tools/downloads/list>
[3]: <https://01.org/linux-nfc>

--NzB8fVQJ5HfG6fxh
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: Digital signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)

iEYEARECAAYFAlMp83AACgkQmxj00I4E1/yPnACfXSO5yuVdUpLrvNpdb/nWI+Ma
NSUAoIv3PsanCt8HgR3bxCHFQwxO58yI
=Bqrs
-----END PGP SIGNATURE-----

--NzB8fVQJ5HfG6fxh--