PWM C in toradex vf61

Technical Support
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1

Hi,

We are using VF61 with linux version 2.6
We plan to use PWMC for our application
But no folder is present as sys/class/pwm/pwmchip0/pwm1/ in the os
What changes should be made to facilitate the use of PWM C

Regards

2

One needs to export the same for it to be visible and usable.

root@colibri-vf:~# cd /sys/class/pwm/pwmchip0/
root@colibri-vf:/sys/class/pwm/pwmchip0# ls
device     export     npwm       power      subsystem  uevent     unexport
root@colibri-vf:/sys/class/pwm/pwmchip0# echo 1 > export 
root@colibri-vf:/sys/class/pwm/pwmchip0# ls
device     export     npwm       power      pwm1       subsystem  uevent     unexport
root@colibri-vf:/sys/class/pwm/pwmchip0# cd pwm1/
root@colibri-vf:/sys/class/pwm/pwmchip0/pwm1# ls
duty_cycle  enable      period      polarity    power       uevent

Also please refer PWM Linux article.

3

Thanks Its good now