> Weird... it sounds that, after si2168 has its firmware updated, it > starts interfering at si2157. Perhaps there's a bug at si2168 I2C > gate mux logic. Are you using a new Kernel like 5.2? Everything is based on git://linuxtv.org/media_tree.git which is at 5.4-rc1 right now. > I guess the best is to enable the debug logs in order to see what's > happening on both cases. > > You can enable all debug messages (after loading the modules) with: > > # for i in $(cat /sys/kernel/debug/dynamic_debug/control |grep -E '(si21|af9035)' |cut -d' ' -f 1); do echo "file $i +p" >>/sys/kernel/debug/dynamic_debug/control; done I'll give that a try. > You could also try to disable the firmware upload at si2168 and see > if the si2157 reads will succeed. That too. Thanks for the advice. -- g
