Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Problem using more than 2 i2c devices

We have instantiated 7 i2c controllers in our FPGA. I modified the busses/i2c-oc.c code to handle 7 of these instead of just 2. Basically, I just copied the two instances provided and changed...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

I am not sure what root file system you are using. If you happen to use romfs, I would recommend to create the device nodes as /dev/i2c/N instead of /dev/i2c-N. Somehow the latter are not correctly generated for romfs because of the character '-'.