How can i detect which board i am using through the i2c of the raspberry pi

Question

I am working on a project where i moved from raspberry pi model B to B+.

So i need to change my audio driver to work on both models by doing some GPIO

changes .

The requirement is, i have to find the board using the i2c.

I dont know how to do that.

Can anyone suggest me how to do that?

possible duplicate of How to know which revision the rpi board belongs to using c language program — Bex, Oct 08 '14 at 07:24
Yaa, i searched but i didnt understand anything. @ Milliways — optimus prime, Oct 08 '14 at 09:42
I dont know how both questions are same. This is using i2c and the other question is using how to read a revision number. Can u explain clearly, how both are same — optimus prime, Oct 08 '14 at 09:44
What do you mean by "find the board"? What do you mean by "using the I2C"? — joan, Oct 08 '14 at 10:17
I dont know much about I2C, i thought that i have to use some I2C function or any I2C api for getting the board revision. finding the board revision by reading the "/proc/cpuinfo" file is not I2C, i think. — optimus prime, Oct 09 '14 at 03:44
@vvn No, I2C is purely a communications protocol. It has no knowledge of the underlying hardware and no mechanism to talk to anything but devices on the same bus. — joan, Oct 09 '14 at 08:07

score 0 · Answer 1 · answered Oct 09 '14 at 07:56

0

If you send the command:

sudo i2cdetect -y 1

This will show you a 'map' of adresses to your connected i2c devices.

answered Oct 09 '14 at 07:56

user3738008

1 Answers1