How to write i2c device registers before pcie driver load on jetson xavier AGX

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier
1

hi all

I have one pcie re-driver for enlarge signal .I need to write the below value
"i2ctransfer -f -y 7 w5@0x51 0x03 0xd0 0xc4 0x7c 0x7c "
to i2c re-driver device before PCIE driver load during system boot up.
can you teach me how to do it? or can give me the sample code?

3

Sorry for the late response, have you managed to get issue resolved or still need the support? Thanks

4

yes,still need the support

5

I don’t have a good idea for this. Not sure why that is required.

Maybe you rescan or rebind the pcie driver again after your i2c write is done?

6

hi
I already know how to do it ,thank you.

8

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