possible to WriteString to a /sys... file ?

[peacemaker]

How to write system folder files, if the device is rooted ?
For control hardware settings.

File.WriteString(txtPath.Text, "brightness",a) - gives error.

 

[Erel]

Which error?

 

[peacemaker]

All is OK. Topic can be closed.

 

[joseluis]

For posterity, could you please explain what happened, in case some others walk into the same doubt?

 

[peacemaker]

It was just mistake in code. After fixing writing was OK, but actually, it was tested remotely by a customer, so i'm still not sure if the device was rooted or not...