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How to disable the backlight timeout for kernel 2.6.32

Victor Hung66572
Prodigy 10 points

From "How to disable the backlight timeout for kernel 2.6.29" posted by John F.

I could do by issuing below command

echo 9999 > /sys/devices/platform/omapfb/sleep_timeout.

,but now with a 2.6.32 kernel built from AM35x-OMAP35x-PSP-SDK-03.00.01.06, this sys entry no longer exists.  How can I change the backlight timeout value?

 Thanks a lot!

Victor

 

root@omap3evm:/sys/devices/platform/omapfb# pwd
/sys/devices/platform/omapfb
root@omap3evm:/sys/devices/platform/omapfb# ls
driver     graphics   modalias   power      subsystem  uevent
root@omap3evm:/sys/devices/platform/omapfb#

  • 0
    TI__Expert 8180 points

    Hi Victor,

    The sleep_timeout feature was got introduced in 2.6.29 as a custom patch to override some of the issues which we were facing with PM + DSS. Now with migration to 2.6.32 we have complete new PM implementation which is more stable, so we are not longer supporting this SYSFS interface.

    In order to disable the backlight timeout you have to follow standard linux interface, its console timeout feature (default to 10 Minutes), I think google should be able to provide tons of information on this.

     

    Thanks,

    Vaibhav