PWM at 4.14

[masla84]

I tried loading several PWM overlays on BBB debian with 4.14 kernel.
Sysfs files seems to work, at least there is something in /sys/class/pwm/
But when I try to read PWMSS memory at /dev/mem/ with devmem2 I get only bus-error:

sudo ./devmem2 0x48304000
/dev/mem opened.
Memory mapped at address 0xb6feb000.
Bus error

Also the PRU can't access the PWMSS0/1/2 registers.

[RobertCNelson]

Well my initial answer is don't do that.. If devmem2 returns an error, then it's locked out by the kernel..

Go ask the google group about pru and pwm..

Regards,