diff --git a/src/devices/src/virtio/block/queqe_handler.md b/src/devices/src/virtio/block/queqe_handler.md
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+++ b/src/devices/src/virtio/block/queqe_handler.md
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+Brief description of queue handlers  
+init: initializing op as EventOps by adding event of a file descriptor, associated data and EVENTSET::IN    
+process:  
+  check valid events by matching following values:  
+      1. events.event\_set() == EventSet::IN  
+      2. events.data() == IOEVENT_DATA  
+      3. self.ioeventfd.read().is\_err()   
+      4. inorderhander process\_queue() is giving error   
+  in case of not valid event, remove the event from op.
diff --git a/src/devices/src/virtio/net/queue-handler.md b/src/devices/src/virtio/net/queue-handler.md
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index 0000000..e6d4d33
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+++ b/src/devices/src/virtio/net/queue-handler.md
@@ -0,0 +1,9 @@
+Brief description of queue handlers <br/>
+init: initializing op as EventOps by adding event of a file descriptor, associated data and EVENTSET::IN except TAPFD may be EVENTSET::EDGE\_TRIGGERED <br/>
+process: check valid events by matching following values: <br/>
+  1. events.event\_set() == EventSet::IN (| EVENTSET::EDGE\_TRIGGERED in case of TAPFD) 
+  2. events.data() == X\_DATA (X may be TAPFD, RX\_IOEVENT or TX\_IOEVENT) 
+  3. self.ioeventfd.read().is\_err() 
+  4. inorderhander process\_queue() is giving error (queue may be of tap, rx or tx) <br/>
+In case of not valid event, remove the event from op. <br/>  
+handle\_error: remove all events from ops.