To change read/write access from the progrm

thomas at 03h31
14
Sep
2010
To change read/write access from the progrm

Dear All,
I am trying to change the read/write access of the seraical port from my progrm. My code is as follow. The probelm is at the following line. Any suggestion!
su = Runtime.getRuntime().exec("/system/bin/su");
Thanks, Thomas.

if (!device.canRead() || !device.canWrite()) {
try {
/* Missing read/write permission, trying to chmod the file */
Process su;

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14/09/2010 at 03h31 by "thomas"