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Linux/PROCESSOR-SDK-AM335X: Turn off USB power in AM335x

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Part Number:PROCESSOR-SDK-AM335X

Tool/software: Linux

I am looking for turning off USB power. I want to turn off the power of the MUSB module on AM335x to save power.

I found similar thread in e2e forums  

I am facing problem in below step 

#echo 0 > /sys/kernel/debug/musb-hdrc.0/softconnect

After that if I do cat I am getting -1

#cat /sys/kernel/debug/musb-hdrc.0/softconnect

-1

 #grep -i 'power\|devctl' /sys/kernel/debug/musb-hdrc.0/regdump

Power : e0
DevCtl : 80

Can you help me on this

 


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