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coelner

Member

Registered: 2016-11-13

Posts: 1

NFC support missing under lenovo s440

Hey,

I have a lenovo s440.

After looking through the parts list here: https://download.lenovo.com/parts/Think … 130717.pdf and checking my touchpad, I should have NFC integrated.

I found only a short information about another system with NFC: https://wiki.gentoo.org/wiki/Lenovo_ThinkPad_T440s

It is not the same system, but maybe It helps. I tried to find the NFC controller:

user ~ $sudo i2cdetect -F 8
Functionalities implemented by /dev/i2c-8:
I2C                              no
SMBus Quick Command              yes
SMBus Send Byte                  yes
SMBus Receive Byte               yes
SMBus Write Byte                 yes
SMBus Read Byte                  yes
SMBus Write Word                 yes
SMBus Read Word                  yes
SMBus Process Call               no
SMBus Block Write                yes
SMBus Block Read                 yes
SMBus Block Process Call         no
SMBus PEC                        yes
I2C Block Write                  yes
I2C Block Read                   yes
user ~ $sudo i2cdetect -q 8
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-8 using quick write commands.
I will probe address range 0x03-0x77.
Continue? [Y/n] 
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- 08 -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: 30 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- 44 -- -- -- -- -- -- -- -- -- -- -- 
50: 50 -- -- -- 54 55 56 57 -- -- -- -- 5c -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- 77      

Do you have any hint how to find the NFC device?