diff --git a/core/docs/ApiChangelogs/0.2.0-0.2.2.txt b/core/docs/ApiChangelogs/0.2.0-0.2.2.txt
index 8e3db32e2..ccce1c0e1 100644
--- a/core/docs/ApiChangelogs/0.2.0-0.2.2.txt
+++ b/core/docs/ApiChangelogs/0.2.0-0.2.2.txt
@@ -111,9 +111,11 @@ Internal API diff
     [D] sliceOnSuffix :: Monad m => (a -> Bool) -> Stream m a -> Stream m (Int, Int)
     [A] indexOnSuffix :: Monad m => (a -> Bool) -> Stream m a -> Stream m (Int, Int)
 [C] Streamly.Internal.Data.MutByteArray
+    [A] unsafePinnedAsPtr :: MonadIO m => MutByteArray -> (Ptr a -> m b) -> m b
+    [A] unsafeAsPtr :: MonadIO m => MutByteArray -> (Ptr a -> m b) -> m b
     [D] nil :: MutByteArray
     [A] empty :: MutByteArray
-    [A] asUnpinnedPtrUnsafe :: MonadIO m => MutByteArray -> (Ptr a -> m b) -> m b
+    [D] asPtrUnsafe :: MonadIO m => MutByteArray -> (Ptr a -> m b) -> m b
 [D] Streamly.Internal.Data.MutArray.Stream
     [D] writeChunks :: (MonadIO m, Unbox a) => Int -> Fold m a (StreamK n (MutArray a))
     [D] fromArrayStreamK :: (Unbox a, MonadIO m) => StreamK m (MutArray a) -> m (MutArray a)
@@ -142,8 +144,10 @@ Internal API diff
     [D] writeAppendWith :: forall m a. (MonadIO m, Unbox a) => (Int -> Int) -> m (MutArray a) -> Fold m a (MutArray a)
     [D] writeAppendNUnsafe :: forall m a. (MonadIO m, Unbox a) => Int -> m (MutArray a) -> Fold m a (MutArray a)
     [A] unsafePinnedCreateOf :: forall m a. (MonadIO m, Unbox a) => Int -> Fold m a (MutArray a)
+    [A] unsafePinnedAsPtr :: MonadIO m => MutArray a -> (Ptr a -> m b) -> m b
     [A] unsafeCreateOfWith :: forall m a. (MonadIO m, Unbox a) => (Int -> m (MutArray a)) -> Int -> Fold m a (MutArray a)
     [A] unsafeCreateOf :: forall m a. (MonadIO m, Unbox a) => Int -> Fold m a (MutArray a)
+    [A] unsafeAsPtr :: MonadIO m => MutArray a -> (Ptr a -> m b) -> m b
     [A] unsafeAppendN :: forall m a. (MonadIO m, Unbox a) => Int -> m (MutArray a) -> Fold m a (MutArray a)
     [A] toStreamWith :: forall m a. (Monad m, Unbox a) => (forall b. IO b -> m b) -> MutArray a -> Stream m a
     [A] toStreamRevWith :: forall m a. (Monad m, Unbox a) => (forall b. IO b -> m b) -> MutArray a -> Stream m a
@@ -210,7 +214,7 @@ Internal API diff
     [A] byteEq :: MonadIO m => MutArray a -> MutArray a -> m Bool
     [A] byteCmp :: MonadIO m => MutArray a -> MutArray a -> m Ordering
     [A] buildChunks :: (MonadIO m, Unbox a) => Int -> Fold m a (StreamK n (MutArray a))
-    [A] asUnpinnedPtrUnsafe :: MonadIO m => MutArray a -> (Ptr a -> m b) -> m b
+    [D] asPtrUnsafe :: MonadIO m => MutArray a -> (Ptr a -> m b) -> m b
     [A] appendWith :: forall m a. (MonadIO m, Unbox a) => (Int -> Int) -> m (MutArray a) -> Fold m a (MutArray a)
     [A] appendN :: forall m a. (MonadIO m, Unbox a) => Int -> m (MutArray a) -> Fold m a (MutArray a)
     [A] append :: forall m a. (MonadIO m, Unbox a) => m (MutArray a) -> Fold m a (MutArray a)
@@ -229,6 +233,7 @@ Internal API diff
     [A] create :: MonadIO m => Fold m a (Array a)
 [C] Streamly.Internal.Data.Array
     [R] ArrayUnsafe
+    [A] unsafePinnedAsPtr :: MonadIO m => Array a -> (Ptr a -> m b) -> m b
     [D] toStreamDRev :: forall m a. (Monad m, Unbox a) => Array a -> Stream m a
     [D] toStreamD :: forall m a. (Monad m, Unbox a) => Array a -> Stream m a
     [C] splice
@@ -276,3 +281,4 @@ Internal API diff
     [A] byteCmp :: Array a -> Array a -> Ordering
     [A] buildChunks :: (MonadIO m, Unbox a) => Stream m a -> m (StreamK m (Array a))
     [D] bufferChunks :: (MonadIO m, Unbox a) => Stream m a -> m (StreamK m (Array a))
+    [D] asPtrUnsafe :: MonadIO m => Array a -> (Ptr a -> m b) -> m b
diff --git a/core/src/Streamly/Internal/Data/Array.hs b/core/src/Streamly/Internal/Data/Array.hs
index 0d2ba2210..e908ea2ca 100644
--- a/core/src/Streamly/Internal/Data/Array.hs
+++ b/core/src/Streamly/Internal/Data/Array.hs
@@ -498,8 +498,8 @@ cast arr =
 asCStringUnsafe :: Array a -> (CString -> IO b) -> IO b
 asCStringUnsafe arr act = do
     let arr1 = asBytes arr <> fromList [0]
-    -- asPtrUnsafe makes sure the array is pinned
-    asPtrUnsafe arr1 $ \ptr -> act (castPtr ptr)
+    -- unsafePinnedAsPtr makes sure the array is pinned
+    unsafePinnedAsPtr arr1 $ \ptr -> act (castPtr ptr)
 
 -------------------------------------------------------------------------------
 -- Folds
diff --git a/core/src/Streamly/Internal/Data/Array/Type.hs b/core/src/Streamly/Internal/Data/Array/Type.hs
index 6b4b33c41..c35bc0f16 100644
--- a/core/src/Streamly/Internal/Data/Array/Type.hs
+++ b/core/src/Streamly/Internal/Data/Array/Type.hs
@@ -28,7 +28,7 @@ module Streamly.Internal.Data.Array.Type
     , isPinned
 
     -- *** Casting
-    , asPtrUnsafe
+    , unsafePinnedAsPtr
 
     -- ** Construction
     , empty
@@ -129,6 +129,7 @@ module Streamly.Internal.Data.Array.Type
     , compactGE
 
     -- ** Deprecated
+    , asPtrUnsafe
     , unsafeIndex
     , bufferChunks
     , flattenArrays
@@ -231,15 +232,20 @@ data Array a =
 
 -- | Use an @Array a@ as @Ptr a@.
 --
--- See 'MA.asPtrUnsafe' in the Mutable array module for more details.
+-- See 'MA.unsafePinnedAsPtr' in the Mutable array module for more details.
 --
 -- /Unsafe/
 --
 -- /Pre-release/
 --
+{-# INLINE unsafePinnedAsPtr #-}
+unsafePinnedAsPtr :: MonadIO m => Array a -> (Ptr a -> m b) -> m b
+unsafePinnedAsPtr arr = MA.unsafePinnedAsPtr (unsafeThaw arr)
+
+{-# DEPRECATED asPtrUnsafe "Please use unsafePinnedAsPtr instead." #-}
 {-# INLINE asPtrUnsafe #-}
 asPtrUnsafe :: MonadIO m => Array a -> (Ptr a -> m b) -> m b
-asPtrUnsafe arr = MA.asPtrUnsafe (unsafeThaw arr)
+asPtrUnsafe = unsafePinnedAsPtr
 
 -------------------------------------------------------------------------------
 -- Freezing and Thawing
diff --git a/core/src/Streamly/Internal/Data/MutArray/Type.hs b/core/src/Streamly/Internal/Data/MutArray/Type.hs
index 00b415c01..62f689d60 100644
--- a/core/src/Streamly/Internal/Data/MutArray/Type.hs
+++ b/core/src/Streamly/Internal/Data/MutArray/Type.hs
@@ -42,8 +42,8 @@ module Streamly.Internal.Data.MutArray.Type
     , cast
     , castUnsafe -- XXX unsafeCast
     , asBytes
-    , asPtrUnsafe -- XXX rename to unsafePinnedAsPtr?
-    , asUnpinnedPtrUnsafe -- XXX rename to unsafeAsPtr
+    , unsafePinnedAsPtr
+    , unsafeAsPtr
 
     -- ** Construction
     , empty
@@ -264,6 +264,7 @@ module Streamly.Internal.Data.MutArray.Type
     , c_memchr
 
     -- * Deprecated
+    , asPtrUnsafe
     , writeChunks
     , flattenArrays
     , flattenArraysRev
@@ -2431,7 +2432,7 @@ fromPtrN len addr = do
     -- XXX We can implement a stream copy in a similar way by streaming Word64
     -- first and then remaining Word8.
     arr <- new len
-    _ <- asUnpinnedPtrUnsafe arr
+    _ <- unsafeAsPtr arr
             (\ptr -> liftIO $ c_memcpy ptr addr (fromIntegral len))
     return (arr {arrEnd = len})
 
@@ -2447,7 +2448,7 @@ fromByteStr# addr = do
     len <- liftIO $ c_strlen (Ptr addr)
     let lenInt = fromIntegral len
     arr <- new lenInt
-    _ <- asUnpinnedPtrUnsafe arr (\ptr -> liftIO $ c_memcpy ptr (Ptr addr) len)
+    _ <- unsafeAsPtr arr (\ptr -> liftIO $ c_memcpy ptr (Ptr addr) len)
     return (arr {arrEnd = lenInt})
 
 -------------------------------------------------------------------------------
@@ -2735,7 +2736,7 @@ splitOn predicate arr =
 {-# INLINE breakOn #-}
 breakOn :: MonadIO m
     => Word8 -> MutArray Word8 -> m (MutArray Word8, Maybe (MutArray Word8))
-breakOn sep arr@MutArray{..} = asUnpinnedPtrUnsafe arr $ \p -> liftIO $ do
+breakOn sep arr@MutArray{..} = unsafeAsPtr arr $ \p -> liftIO $ do
     -- XXX We do not need memchr here, we can use a Haskell equivalent.
     -- Need efficient stream based primitives that work on Word64.
     loc <- c_memchr p sep (fromIntegral $ byteLength arr)
@@ -2866,16 +2867,21 @@ cast arr =
 --
 -- /Pre-release/
 --
-{-# INLINE asPtrUnsafe #-}
-asPtrUnsafe :: MonadIO m => MutArray a -> (Ptr a -> m b) -> m b
-asPtrUnsafe arr f =
-    Unboxed.asPtrUnsafe
+{-# INLINE unsafePinnedAsPtr #-}
+unsafePinnedAsPtr :: MonadIO m => MutArray a -> (Ptr a -> m b) -> m b
+unsafePinnedAsPtr arr f =
+    Unboxed.unsafePinnedAsPtr
         (arrContents arr) (\ptr -> f (ptr `plusPtr` arrStart arr))
 
-{-# INLINE asUnpinnedPtrUnsafe #-}
-asUnpinnedPtrUnsafe :: MonadIO m => MutArray a -> (Ptr a -> m b) -> m b
-asUnpinnedPtrUnsafe arr f =
-    Unboxed.asUnpinnedPtrUnsafe
+{-# DEPRECATED asPtrUnsafe "Please use unsafePinnedAsPtr instead." #-}
+{-# INLINE asPtrUnsafe #-}
+asPtrUnsafe :: MonadIO m => MutArray a -> (Ptr a -> m b) -> m b
+asPtrUnsafe = unsafePinnedAsPtr
+
+{-# INLINE unsafeAsPtr #-}
+unsafeAsPtr :: MonadIO m => MutArray a -> (Ptr a -> m b) -> m b
+unsafeAsPtr arr f =
+    Unboxed.unsafeAsPtr
         (arrContents arr) (\ptr -> f (ptr `plusPtr` arrStart arr))
 
 -------------------------------------------------------------------------------
diff --git a/core/src/Streamly/Internal/Data/MutByteArray/Type.hs b/core/src/Streamly/Internal/Data/MutByteArray/Type.hs
index 62ad220d6..da9fe72af 100644
--- a/core/src/Streamly/Internal/Data/MutByteArray/Type.hs
+++ b/core/src/Streamly/Internal/Data/MutByteArray/Type.hs
@@ -34,10 +34,11 @@ module Streamly.Internal.Data.MutByteArray.Type
     , cloneSliceUnsafeAs
     , cloneSliceUnsafe
     , pinnedCloneSliceUnsafe
-    , asPtrUnsafe -- XXX unsafePinnedAsPtr
-    , asUnpinnedPtrUnsafe -- XXX unsafeAsPtr
+    , unsafePinnedAsPtr
+    , unsafeAsPtr
 
     -- ** Deprecated
+    , asPtrUnsafe
     , nil
     ) where
 
@@ -117,9 +118,9 @@ touch (MutByteArray contents) =
 --
 -- /Pre-release/
 --
-{-# INLINE asPtrUnsafe #-}
-asPtrUnsafe :: MonadIO m => MutByteArray -> (Ptr a -> m b) -> m b
-asPtrUnsafe arr f = do
+{-# INLINE unsafePinnedAsPtr #-}
+unsafePinnedAsPtr :: MonadIO m => MutByteArray -> (Ptr a -> m b) -> m b
+unsafePinnedAsPtr arr f = do
   contents <- liftIO $ pin arr
   let !ptr = Ptr (byteArrayContents#
                      (unsafeCoerce# (getMutableByteArray# contents)))
@@ -127,10 +128,15 @@ asPtrUnsafe arr f = do
   liftIO $ touch contents
   return r
 
+{-# DEPRECATED asPtrUnsafe "Please use unsafePinnedAsPtr instead." #-}
+{-# INLINE asPtrUnsafe #-}
+asPtrUnsafe :: MonadIO m => MutByteArray -> (Ptr a -> m b) -> m b
+asPtrUnsafe = unsafePinnedAsPtr
+
 -- | For use with unsafe FFI functions. Does not force pin the array memory.
-{-# INLINE asUnpinnedPtrUnsafe #-}
-asUnpinnedPtrUnsafe :: MonadIO m => MutByteArray -> (Ptr a -> m b) -> m b
-asUnpinnedPtrUnsafe arr f = do
+{-# INLINE unsafeAsPtr #-}
+unsafeAsPtr :: MonadIO m => MutByteArray -> (Ptr a -> m b) -> m b
+unsafeAsPtr arr f = do
   let !ptr = Ptr (byteArrayContents#
                      (unsafeCoerce# (getMutableByteArray# arr)))
   r <- f ptr
diff --git a/core/src/Streamly/Internal/FileSystem/Handle.hs b/core/src/Streamly/Internal/FileSystem/Handle.hs
index 607afdc8c..cf1fe52b3 100644
--- a/core/src/Streamly/Internal/FileSystem/Handle.hs
+++ b/core/src/Streamly/Internal/FileSystem/Handle.hs
@@ -180,7 +180,7 @@ getChunk :: MonadIO m => Int -> Handle -> m (Array Word8)
 getChunk size h = liftIO $ do
     arr :: MArray.MutArray Word8 <- MArray.pinnedEmptyOf size
     -- ptr <- mallocPlainForeignPtrAlignedBytes size (alignment (undefined :: Word8))
-    MArray.asPtrUnsafe arr $ \p -> do
+    MArray.unsafePinnedAsPtr arr $ \p -> do
         n <- hGetBufSome h p size
         -- XXX shrink only if the diff is significant
         return $
@@ -380,12 +380,12 @@ read = A.concat . readChunks
 {-# INLINABLE putChunk #-}
 putChunk :: MonadIO m => Handle -> Array a -> m ()
 putChunk _ arr | byteLength arr == 0 = return ()
-putChunk h arr = A.asPtrUnsafe arr $ \ptr ->
+putChunk h arr = A.unsafePinnedAsPtr arr $ \ptr ->
     liftIO $ hPutBuf h ptr aLen
 
     where
 
-    -- XXX We should have the length passed by asPtrUnsafe itself.
+    -- XXX We should have the length passed by unsafePinnedAsPtr itself.
     aLen = A.byteLength arr
 
 -------------------------------------------------------------------------------
diff --git a/src/Streamly/Internal/FileSystem/Event/Darwin.hs b/src/Streamly/Internal/FileSystem/Event/Darwin.hs
index 4aaf1319c..b53add830 100644
--- a/src/Streamly/Internal/FileSystem/Event/Darwin.hs
+++ b/src/Streamly/Internal/FileSystem/Event/Darwin.hs
@@ -451,7 +451,7 @@ openWatch Config{..} paths = do
 
     withPathName :: Array Word8 -> (PathName -> IO a) -> IO a
     withPathName arr act = do
-        A.asPtrUnsafe arr $ \ptr ->
+        A.unsafePinnedAsPtr arr $ \ptr ->
             let pname = PathName (castPtr ptr) (fromIntegral (A.length arr))
             in act pname
 
diff --git a/src/Streamly/Internal/FileSystem/Event/Linux.hs b/src/Streamly/Internal/FileSystem/Event/Linux.hs
index 4d66d55a2..d2cc61387 100644
--- a/src/Streamly/Internal/FileSystem/Event/Linux.hs
+++ b/src/Streamly/Internal/FileSystem/Event/Linux.hs
@@ -188,7 +188,7 @@ import qualified Streamly.FileSystem.Handle as FH
 import qualified Streamly.Unicode.Stream as U
 
 import qualified Streamly.Internal.Data.Array as A
-    ( fromStream, asCStringUnsafe, asPtrUnsafe
+    ( fromStream, asCStringUnsafe, unsafePinnedAsPtr
     , getSliceUnsafe, read
     )
 import qualified Streamly.Internal.FileSystem.Dir as Dir (readDirs)
@@ -809,7 +809,7 @@ readOneEvent :: Config -> Watch -> Parser Word8 IO Event
 readOneEvent cfg  wt@(Watch _ wdMap) = do
     let headerLen = sizeOf (undefined :: CInt) + 12
     arr <- PR.takeEQ headerLen (A.writeN headerLen)
-    (ewd, eflags, cookie, pathLen) <- PR.fromEffect $ A.asPtrUnsafe arr readHeader
+    (ewd, eflags, cookie, pathLen) <- PR.fromEffect $ A.unsafePinnedAsPtr arr readHeader
     -- XXX need the "initial" in parsers to return a step type so that "take 0"
     -- can return without an input. otherwise if pathLen is 0 we will keep
     -- waiting to read one more char before we return this event.
diff --git a/src/Streamly/Internal/FileSystem/FD.hs b/src/Streamly/Internal/FileSystem/FD.hs
index 05189feb0..a2c404e77 100644
--- a/src/Streamly/Internal/FileSystem/FD.hs
+++ b/src/Streamly/Internal/FileSystem/FD.hs
@@ -130,7 +130,7 @@ import qualified GHC.IO.Device as RawIO
 import Streamly.Data.Array (Array, Unbox)
 import Streamly.Data.Stream (Stream)
 
-import Streamly.Internal.Data.Array (byteLength, unsafeFreeze, asPtrUnsafe)
+import Streamly.Internal.Data.Array (byteLength, unsafeFreeze, unsafePinnedAsPtr)
 import Streamly.Internal.System.IO (defaultChunkSize)
 
 #if !defined(mingw32_HOST_OS)
@@ -147,7 +147,7 @@ import qualified Streamly.Internal.System.IOVec.Type as RawIO
 import qualified Streamly.Data.Array as A
 import qualified Streamly.Data.Fold as FL
 import qualified Streamly.Internal.Data.MutArray as MArray
-    (MutArray(..), asPtrUnsafe, pinnedNewBytes)
+    (MutArray(..), unsafePinnedAsPtr, pinnedNewBytes)
 import qualified Streamly.Internal.Data.Array.Stream as AS
 import qualified Streamly.Internal.Data.Stream as S
 import qualified Streamly.Internal.Data.Stream as D
@@ -220,7 +220,7 @@ readArrayUpto :: Int -> Handle -> IO (Array Word8)
 readArrayUpto size (Handle fd) = do
     arr <- MArray.pinnedNewBytes size
     -- ptr <- mallocPlainForeignPtrAlignedBytes size (alignment (undefined :: Word8))
-    MArray.asPtrUnsafe arr $ \p -> do
+    MArray.unsafePinnedAsPtr arr $ \p -> do
         -- n <- hGetBufSome h p size
 #if MIN_VERSION_base(4,15,0)
         n <- RawIO.read fd p 0 size
@@ -244,7 +244,7 @@ readArrayUpto size (Handle fd) = do
 writeArray :: Unbox a => Handle -> Array a -> IO ()
 writeArray _ arr | A.length arr == 0 = return ()
 writeArray (Handle fd) arr =
-    asPtrUnsafe arr $ \p ->
+    unsafePinnedAsPtr arr $ \p ->
     -- RawIO.writeAll fd (castPtr p) aLen
 #if MIN_VERSION_base(4,15,0)
     RawIO.write fd (castPtr p) 0 aLen
@@ -270,7 +270,7 @@ writeArray (Handle fd) arr =
 writeIOVec :: Handle -> Array RawIO.IOVec -> IO ()
 writeIOVec _ iov | A.length iov == 0 = return ()
 writeIOVec (Handle fd) iov =
-    asPtrUnsafe iov $ \p ->
+    unsafePinnedAsPtr iov $ \p ->
         RawIO.writevAll fd p (A.length iov)
 -}
 #endif
diff --git a/src/Streamly/Internal/Network/Socket.hs b/src/Streamly/Internal/Network/Socket.hs
index df8713803..21bb3746c 100644
--- a/src/Streamly/Internal/Network/Socket.hs
+++ b/src/Streamly/Internal/Network/Socket.hs
@@ -98,10 +98,10 @@ import qualified Streamly.Data.Fold as FL
 import qualified Streamly.Data.Stream as S
 import qualified Streamly.Data.Unfold as UF
 import qualified Streamly.Internal.Data.Array as A
-    ( unsafeFreeze, asPtrUnsafe, byteLength, pinnedChunksOf,
+    ( unsafeFreeze, unsafePinnedAsPtr, byteLength, pinnedChunksOf,
       pinnedWriteN, pinnedWriteNUnsafe, lCompactGE )
 import qualified Streamly.Internal.Data.MutArray as MArray
-    (MutArray(..), asPtrUnsafe, pinnedEmptyOf)
+    (MutArray(..), unsafePinnedAsPtr, pinnedEmptyOf)
 import qualified Streamly.Internal.Data.Stream as S (fromStreamK, Stream(..), Step(..))
 import qualified Streamly.Internal.Data.StreamK as K (mkStream)
 
@@ -263,7 +263,7 @@ readArrayUptoWith
 readArrayUptoWith f size h = do
     arr <- MArray.pinnedEmptyOf size
     -- ptr <- mallocPlainForeignPtrAlignedBytes size (alignment (undefined :: Word8))
-    MArray.asPtrUnsafe arr $ \p -> do
+    MArray.unsafePinnedAsPtr arr $ \p -> do
         n <- f h p size
         let v = A.unsafeFreeze
                 $ arr { MArray.arrEnd = n, MArray.arrBound = size }
@@ -311,7 +311,7 @@ writeArrayWith :: Unbox a
     -> Array a
     -> IO ()
 writeArrayWith _ _ arr | A.length arr == 0 = return ()
-writeArrayWith f h arr = A.asPtrUnsafe arr $ \ptr -> f h (castPtr ptr) aLen
+writeArrayWith f h arr = A.unsafePinnedAsPtr arr $ \ptr -> f h (castPtr ptr) aLen
 
     where
 
diff --git a/test/Streamly/Test/Data/Array.hs b/test/Streamly/Test/Data/Array.hs
index c20fc0e12..144c96d31 100644
--- a/test/Streamly/Test/Data/Array.hs
+++ b/test/Streamly/Test/Data/Array.hs
@@ -185,7 +185,7 @@ testUnsafeIndxedFromList inp =
 testAsPtrUnsafeMA :: IO ()
 testAsPtrUnsafeMA = do
     arr <- MA.fromList ([0 .. 99] :: [Int])
-    MA.asPtrUnsafe arr (getList (0 :: Int)) `shouldReturn` [0 .. 99]
+    MA.unsafePinnedAsPtr arr (getList (0 :: Int)) `shouldReturn` [0 .. 99]
 
     where