Q:

Difference between READ_LOGS and READ_CALL_LOG permissions of android

What is the difference between below 2 set of permission? 
1) 
<uses-permission android:name="android.permission. WRITE_CALL_LOG" />
<uses-permission android:name="android.permission. READ_CALL_LOG" />

2) 
<uses-permission android:name="com.sec.android.provider.logsprovider.permission. READ_LOGS" />
<uses-permission android:name="com.sec.android.provider.logsprovider.permission. WRITE_LOGS" />

A:

READ_CALL_LOG -- Allows an application to read the user's call log. 
READ_LOGS -- Allows an application to read the low-level system log
files

The first one is mostly specific to phone calls, while the second one is for any and all usage of the device.