> On Apr 19, 2019, at 09:40, Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > Can you send me a register dump for the chip (from i2cdump) ? Here you go... ~# i2cdump -f -r 0x0-0x16 -y 0 0x1b b 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: 00 00 12 12 ff ff ff ff 00 00 00 00 01 01 01 01 ..??........???? 10: 01 01 01 01 1f 1f 02 ??????? Our board has the max6650 and doesn't have the tach line connected.