[AudioI] How the RPI OS detects the Octo?

[Marc Lavallée]

Le 2022-07-02 à 16 h 07, Marc Lavallée via People a écrit :
> Le 2022-05-10 à 18 h 09, Matt Flax a écrit :
>> Test whether it is detectable on the i2c bus. You may need to disable
>> the overlay in config.txt.
>>
>> i2cdetect -l
> The result is empty.
> ls /dev/i2c* is also empty
>
>> That will list the available i2c busses. Then you can detect a bus, such
>> as bus 1 :
>>
>> i2cdetect 1
>>
>> Do you see any indications in the output from i2cdetect that an IC is
>> responding on the bus ?
>
> Nope.

I forgot to load the i2c device module:
sudo modprobe i2c-dev

Now I get some result:

$ i2cdetect -l
i2c-1    i2c           bcm2835 (i2c at 7e804000)              I2C adapter

$ i2cdetect 1
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-1.
I will probe address range 0x08-0x77.
Continue? [Y/n]
      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:                         -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

The Octo is not detected... :-(
Is it broken?

Marc

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