This is an old revision of the document!
Using PWM from sysfs
following Instuction only works for Linux kernel 3.11 or greater
Where to find PWM devices in sysfs
PWM devices are listed under /sys/class/pwm
enable PWM device
root@MBaXXX:~ cd /sys/class/pwm // enter pwm folder in sysfs root@MBaXXX:/sys/class/pwm cd pwmchip<pwmchipnr> // enter the desired pwmchip folder root@MBaXXX:/sys/your/path/to/pwmchip/pwmchip<pwmchipnr> echo <pwmnr> > export // export device PWM<pwmnr> root@MBaXXX:/sys/your/path/to/pwmchip/pwmchip<pwmchipnr> cd pwm<pwmnr> // enter exported pwm device folder
root@MBaXXX: