PhilE
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 2214
Joined: Mon Sep 29, 2014 1:07 pm
Location: Cambridge

Re: How to use 2 SC16IS752,I USE I2C

Mon Mar 25, 2019 8:35 am

Install one of the debug versions of the modules (you have read this thread, haven't you?) and then report the error messages.

hnwangkg163
Posts: 19
Joined: Tue Sep 11, 2018 6:01 am

Re: How to use 2 SC16IS752,I USE I2C

Mon Mar 25, 2019 10:27 am

Should I also use the latest kernel for testing?
i think it is my kernel version problem

Code: Select all

[email protected]:/boot/overlays $ uname -r
4.14.50-v7+

PhilE
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 2214
Joined: Mon Sep 29, 2014 1:07 pm
Location: Cambridge

Re: How to use 2 SC16IS752,I USE I2C

Mon Mar 25, 2019 10:35 am

The updated overlay should work for all affected kernel versions. The debug module (which just adds some more error messages and doesn't fix anything) has to match the running kernel version.

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