i2c-bus kernel modules
#5
(06-03-2016, 09:16 AM)martinayotte Wrote: What kind of device it is ? Are you sure that it is properly connected ?

it was a SN2318 led-controller. to be sure it's not a dead chip i just connected an LM75 temperature sensor, which is a relatively simple chip. same as before (it should show up on address 7):

Code:
root@pine64pro:/home/debian# i2cdetect -y 0
    0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --                        
root@pine64pro:/home/debian# i2cdetect -y 1
    0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --                

I have read that on the raspberry pi it is neccessary to load i2c-dev (which should be active here, otherwise i would not see the /dev/i2c-files, right?) and a second kernel module, that allows to access the processors i2c-bus (usually called i2c_bcm8xxx).

Is this module maybe missing? Or is it included in the 8723bs or the vfe-io?

It seems strange that the buses show up, but not their connected devices.
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Messages In This Thread
i2c-bus kernel modules - by robertvaldimarsson - 06-02-2016, 02:42 PM
RE: i2c-bus kernel modules - by martinayotte - 06-03-2016, 07:47 AM
RE: i2c-bus kernel modules - by martinayotte - 06-03-2016, 09:16 AM
RE: i2c-bus kernel modules - by robertvaldimarsson - 06-03-2016, 01:04 PM
RE: i2c-bus kernel modules - by martinayotte - 06-03-2016, 01:49 PM
RE: i2c-bus kernel modules - by martinayotte - 06-03-2016, 03:06 PM
RE: i2c-bus kernel modules - by dkryder - 06-03-2016, 05:32 PM
RE: i2c-bus kernel modules - by martinayotte - 06-03-2016, 03:48 PM
RE: i2c-bus kernel modules - by martinayotte - 06-03-2016, 06:04 PM
RE: i2c-bus kernel modules - by martinayotte - 06-03-2016, 08:13 PM
RE: i2c-bus kernel modules - by peterz - 06-07-2016, 01:01 PM

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