CODEWITHSUNDEEP
androidsysfs
iamcj
iamcj

Reputation: 11

Writing to sysfs entry through an android app is denied in android M

I am trying to write to a sysfs entry through an android application using the following lines of code:

String command[]={"/system/bin/sh", 
                  "-c", 
                  "echo 0 > /sys/module/lge_handle_panic/parameters/gen_modem_panic",
                 };
Process p = Runtime.getRuntime().exec(command);

On installing the app in /system/priv-app, it works fine and creates a modem panic in android L. But, nothing executes in Android M.

I am not sure if Android M requires certain SELinux policy permission.

Upvotes: 0

Views: 1281

Answers (1)

iamcj
iamcj

Reputation: 11

We need to set the SeLinux policy to permissive manually for echo to work in android M. Command used: adb shell su root setenforce 0

Upvotes: 1

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