Re: RPi kernel upgrade breaks lirc

Hi Ken,

On 18/03/2019 18:43, Ken Kayser wrote:
> Hi,
> I am new to lirc.  I installed it on a raspberry pi 3b+ running Raspbian
> GNU/Linux 9.8 (stretch) with the current production kernel 4.19.  I
> installed the current release of lirc, 0.9.4c.  I mad the required
> changes to config.txt and lirc_options.conf.  After rebooting, the
> device /dev/lirc0 was missing and of course, lirc wouldn’t run.  After
> much research and experimentation, I discovered that if I downgraded my
> kernel to 4.14.98, the /dev/lirc0 device magically reappeared and lirc
> runs fine.  I repeated this several times to be sure.  For now, I will
> not perform and kernel upgrades.  I am new to Linux as well and don’t
> know if the problem needs to be corrected in the kernel or in lirc.

Well, creating the /dev/lirc devices is a kernel responsibility. So,
this seems to basically be about the kernel. More to the point, it's
about the actual device driver used on the Rpi. You might want to report
your findings to the Debian kernel maintainers so they can look into it.


Cheers!
--alec