How to create an I2C slave interface

[Sugar]

Hello to all.

I want to use the raspberry pi as a slave.
But I do not know.

Please tell me the information that would be helpful.

I am using Python.
It does not matter other languages.

Information that is written in the following PDF will care.
・Raspberry Pi Education Manual (130page)
http://212.187.212.72/bt/69fc7f0b8f84a2 ... Manual.pdf

"Inter-Integrated Circuit (I2C)
I2C is an interface on which you can connect multiple I2C slave devices.
The Raspberry Pi acts as the master on the bus."

master only?

※
I am also using the Google translation.
Sorry, but it might have been in the wrong sentence.

Yours sincerely

[mahjongg]

Yes, master only, its not written there by accident, concluding anything else is just wishful thinking.

AFAIK the only way to create a slave I2C interface is to write a bit-banging routine using normal GPIO ports.

or to use an external micro controller that can be an I2C slave, and communicates with the PI using its UART (serial port).

[joan]

The Pis with the 40 pin header and the compute module export one I2C/SPI slave peripheral on the expansion header.

The I2C/SPI slave peripheral is not supported in the kernel. I know at least one poster was trying to use it from Linux userland. I haven't seen any evidence of success. There are bare metal examples of code.

[Sugar]

Dear mahjongg and joan,

Thank you for your answer.

I found out that OS isn't supporting it.

bare metal...
I do not know.
I try to search on Google.

Thank you all.

[mahjongg]

You normally use Linux userland drivers like PIGPIO to control the GPIO's and its special functions, of course you don't need to write your own bare metal drivers.

[krishnaiah.vv]

The Pis with the 40 pin header and the compute module export one I2C/SPI slave peripheral on the expansion header.

The I2C/SPI slave peripheral is not supported in the kernel. I know at least one poster was trying to use it from Linux userland. I haven't seen any evidence of success. There are bare metal examples of code.

Hi Joan,
than means, the I2C/SPI slave couldn't be achieved/implemented on RPi2(40 pin header) with Linux support?

[joan]

The Pis with the 40 pin header and the compute module export one I2C/SPI slave peripheral on the expansion header.

The I2C/SPI slave peripheral is not supported in the kernel. I know at least one poster was trying to use it from Linux userland. I haven't seen any evidence of success. There are bare metal examples of code.

Hi Joan,
than means, the I2C/SPI slave couldn't be achieved/implemented on RPi2(40 pin header) with Linux support?

It means that no one has written a Linux driver to support the I2C/SPI Slave peripheral. I'm sure it is possible. My personal view is it would not be very useful even if someone did write a driver.