The USB host driver has been verified on the STM32F4Discovery

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@5067 7fd9a85b-ad96-42d3-883c-3090e2eb8679

91 files changed, 149 insertions, 103 deletions

diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog
index 46b821b79b..5412295783 100644
--- a/nuttx/ChangeLog
+++ b/nuttx/ChangeLog
@@ -3213,5 +3213,5 @@
 	  strings by strerror().
 	* arch/arm/src/stm32/stm32_usbotghost.c:  Finally... the USB OTG FS
 	  appears to handle NAKing correctly is complete.
-	* configs/stm32f4discovery/*:  Add support for USB OTG FS host on the
-	  STM32F4Discovery board.
+	* configs/stm32f4discovery/*:  Added and verifed support for USB OTG FS
+	  host on the STM32F4Discovery board.
diff --git a/nuttx/configs/amber/hello/defconfig b/nuttx/configs/amber/hello/defconfig
index 1bd025f77f..580aada4f5 100644
--- a/nuttx/configs/amber/hello/defconfig
+++ b/nuttx/configs/amber/hello/defconfig
@@ -286,7 +286,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/avr32dev1/nsh/defconfig b/nuttx/configs/avr32dev1/nsh/defconfig
index 6c4d57c2db..5e8eaef658 100755
--- a/nuttx/configs/avr32dev1/nsh/defconfig
+++ b/nuttx/configs/avr32dev1/nsh/defconfig
@@ -328,7 +328,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/avr32dev1/ostest/defconfig b/nuttx/configs/avr32dev1/ostest/defconfig
index ca7cf170ee..59b7c9e3ca 100755
--- a/nuttx/configs/avr32dev1/ostest/defconfig
+++ b/nuttx/configs/avr32dev1/ostest/defconfig
@@ -328,7 +328,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/demo9s12ne64/ostest/defconfig b/nuttx/configs/demo9s12ne64/ostest/defconfig
index 448688b3ac..a44401fa2c 100755
--- a/nuttx/configs/demo9s12ne64/ostest/defconfig
+++ b/nuttx/configs/demo9s12ne64/ostest/defconfig
@@ -307,7 +307,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=256
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/ea3131/nsh/defconfig b/nuttx/configs/ea3131/nsh/defconfig
index 8377265db0..8c32296ab4 100644
--- a/nuttx/configs/ea3131/nsh/defconfig
+++ b/nuttx/configs/ea3131/nsh/defconfig
@@ -315,7 +315,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/ea3131/ostest/defconfig b/nuttx/configs/ea3131/ostest/defconfig
index c3e584d63a..2aa5057cdd 100644
--- a/nuttx/configs/ea3131/ostest/defconfig
+++ b/nuttx/configs/ea3131/ostest/defconfig
@@ -315,7 +315,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/ea3131/pgnsh/defconfig b/nuttx/configs/ea3131/pgnsh/defconfig
index fb769383b5..3542d3ae37 100644
--- a/nuttx/configs/ea3131/pgnsh/defconfig
+++ b/nuttx/configs/ea3131/pgnsh/defconfig
@@ -330,7 +330,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/ea3131/usbserial/defconfig b/nuttx/configs/ea3131/usbserial/defconfig
index 4fe15f1584..1d05e73faf 100644
--- a/nuttx/configs/ea3131/usbserial/defconfig
+++ b/nuttx/configs/ea3131/usbserial/defconfig
@@ -317,7 +317,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/ea3131/usbstorage/defconfig b/nuttx/configs/ea3131/usbstorage/defconfig
index fccdd439c5..491b48e91a 100644
--- a/nuttx/configs/ea3131/usbstorage/defconfig
+++ b/nuttx/configs/ea3131/usbstorage/defconfig
@@ -317,7 +317,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/ea3152/ostest/defconfig b/nuttx/configs/ea3152/ostest/defconfig
index 928971b9a8..dd95289de6 100644
--- a/nuttx/configs/ea3152/ostest/defconfig
+++ b/nuttx/configs/ea3152/ostest/defconfig
@@ -316,7 +316,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/hymini-stm32v/buttons/defconfig b/nuttx/configs/hymini-stm32v/buttons/defconfig
index 8d8acf8ea0..3bf72b5e27 100644
--- a/nuttx/configs/hymini-stm32v/buttons/defconfig
+++ b/nuttx/configs/hymini-stm32v/buttons/defconfig
@@ -358,7 +358,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/hymini-stm32v/nsh/defconfig b/nuttx/configs/hymini-stm32v/nsh/defconfig
index 56e6f8ecd4..e5c1a534e2 100755
--- a/nuttx/configs/hymini-stm32v/nsh/defconfig
+++ b/nuttx/configs/hymini-stm32v/nsh/defconfig
@@ -354,7 +354,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/hymini-stm32v/nsh2/defconfig b/nuttx/configs/hymini-stm32v/nsh2/defconfig
index 3d13db721a..4ac12187ee 100644
--- a/nuttx/configs/hymini-stm32v/nsh2/defconfig
+++ b/nuttx/configs/hymini-stm32v/nsh2/defconfig
@@ -363,7 +363,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/hymini-stm32v/nx/defconfig b/nuttx/configs/hymini-stm32v/nx/defconfig
index ae925eca91..9d57e2ea1c 100644
--- a/nuttx/configs/hymini-stm32v/nx/defconfig
+++ b/nuttx/configs/hymini-stm32v/nx/defconfig
@@ -352,7 +352,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/hymini-stm32v/nxlines/defconfig b/nuttx/configs/hymini-stm32v/nxlines/defconfig
index 137897e324..8df5b37c3d 100644
--- a/nuttx/configs/hymini-stm32v/nxlines/defconfig
+++ b/nuttx/configs/hymini-stm32v/nxlines/defconfig
@@ -356,7 +356,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/hymini-stm32v/usbserial/defconfig b/nuttx/configs/hymini-stm32v/usbserial/defconfig
index 8ebf5bd381..66a52588aa 100755
--- a/nuttx/configs/hymini-stm32v/usbserial/defconfig
+++ b/nuttx/configs/hymini-stm32v/usbserial/defconfig
@@ -358,7 +358,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/hymini-stm32v/usbstorage/defconfig b/nuttx/configs/hymini-stm32v/usbstorage/defconfig
index fc5805f4d7..876b34fca8 100755
--- a/nuttx/configs/hymini-stm32v/usbstorage/defconfig
+++ b/nuttx/configs/hymini-stm32v/usbstorage/defconfig
@@ -353,7 +353,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/kwikstik-k40/ostest/defconfig b/nuttx/configs/kwikstik-k40/ostest/defconfig
index 0e299f938c..8519f2733e 100755
--- a/nuttx/configs/kwikstik-k40/ostest/defconfig
+++ b/nuttx/configs/kwikstik-k40/ostest/defconfig
@@ -418,7 +418,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/lincoln60/nsh/defconfig b/nuttx/configs/lincoln60/nsh/defconfig
index e4403b669f..e83881efb3 100644
--- a/nuttx/configs/lincoln60/nsh/defconfig
+++ b/nuttx/configs/lincoln60/nsh/defconfig
@@ -342,7 +342,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/lincoln60/ostest/defconfig b/nuttx/configs/lincoln60/ostest/defconfig
index 04fd082a0a..5157665967 100644
--- a/nuttx/configs/lincoln60/ostest/defconfig
+++ b/nuttx/configs/lincoln60/ostest/defconfig
@@ -349,7 +349,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/lpcxpresso-lpc1768/dhcpd/defconfig b/nuttx/configs/lpcxpresso-lpc1768/dhcpd/defconfig
index 598ce529b2..5d09f6f1b2 100755
--- a/nuttx/configs/lpcxpresso-lpc1768/dhcpd/defconfig
+++ b/nuttx/configs/lpcxpresso-lpc1768/dhcpd/defconfig
@@ -347,7 +347,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/lpcxpresso-lpc1768/nsh/defconfig b/nuttx/configs/lpcxpresso-lpc1768/nsh/defconfig
index a8ef1ace9a..a16f0c4043 100755
--- a/nuttx/configs/lpcxpresso-lpc1768/nsh/defconfig
+++ b/nuttx/configs/lpcxpresso-lpc1768/nsh/defconfig
@@ -355,7 +355,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/lpcxpresso-lpc1768/nx/defconfig b/nuttx/configs/lpcxpresso-lpc1768/nx/defconfig
index e34c6dd661..17f73817b2 100755
--- a/nuttx/configs/lpcxpresso-lpc1768/nx/defconfig
+++ b/nuttx/configs/lpcxpresso-lpc1768/nx/defconfig
@@ -352,7 +352,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/lpcxpresso-lpc1768/ostest/defconfig b/nuttx/configs/lpcxpresso-lpc1768/ostest/defconfig
index 653f208f93..dc65893f92 100755
--- a/nuttx/configs/lpcxpresso-lpc1768/ostest/defconfig
+++ b/nuttx/configs/lpcxpresso-lpc1768/ostest/defconfig
@@ -345,7 +345,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/lpcxpresso-lpc1768/thttpd/defconfig b/nuttx/configs/lpcxpresso-lpc1768/thttpd/defconfig
index 5e73edcdc5..4e0ba5ad93 100755
--- a/nuttx/configs/lpcxpresso-lpc1768/thttpd/defconfig
+++ b/nuttx/configs/lpcxpresso-lpc1768/thttpd/defconfig
@@ -352,7 +352,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/lpcxpresso-lpc1768/usbstorage/defconfig b/nuttx/configs/lpcxpresso-lpc1768/usbstorage/defconfig
index bffbd8c5a2..426a7973ad 100755
--- a/nuttx/configs/lpcxpresso-lpc1768/usbstorage/defconfig
+++ b/nuttx/configs/lpcxpresso-lpc1768/usbstorage/defconfig
@@ -350,7 +350,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/mbed/hidkbd/defconfig b/nuttx/configs/mbed/hidkbd/defconfig
index 1bc5bf8499..8d70b8e992 100644
--- a/nuttx/configs/mbed/hidkbd/defconfig
+++ b/nuttx/configs/mbed/hidkbd/defconfig
@@ -350,7 +350,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/mbed/nsh/defconfig b/nuttx/configs/mbed/nsh/defconfig
index f015a4fc74..42464036ad 100755
--- a/nuttx/configs/mbed/nsh/defconfig
+++ b/nuttx/configs/mbed/nsh/defconfig
@@ -342,7 +342,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/micropendous3/hello/defconfig b/nuttx/configs/micropendous3/hello/defconfig
index e83f5d4ae2..b2c98d5f78 100644
--- a/nuttx/configs/micropendous3/hello/defconfig
+++ b/nuttx/configs/micropendous3/hello/defconfig
@@ -281,7 +281,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/ne64badge/ostest/defconfig b/nuttx/configs/ne64badge/ostest/defconfig
index 1e0b270035..5d7a1e2274 100755
--- a/nuttx/configs/ne64badge/ostest/defconfig
+++ b/nuttx/configs/ne64badge/ostest/defconfig
@@ -318,7 +318,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=256
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/nucleus2g/nsh/defconfig b/nuttx/configs/nucleus2g/nsh/defconfig
index 5ecd0d0451..0499c2eaf0 100755
--- a/nuttx/configs/nucleus2g/nsh/defconfig
+++ b/nuttx/configs/nucleus2g/nsh/defconfig
@@ -346,7 +346,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/nucleus2g/ostest/defconfig b/nuttx/configs/nucleus2g/ostest/defconfig
index 465b207d71..b491abdfa8 100755
--- a/nuttx/configs/nucleus2g/ostest/defconfig
+++ b/nuttx/configs/nucleus2g/ostest/defconfig
@@ -342,7 +342,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/nucleus2g/usbserial/defconfig b/nuttx/configs/nucleus2g/usbserial/defconfig
index 8183198f6c..ebee5bde1b 100755
--- a/nuttx/configs/nucleus2g/usbserial/defconfig
+++ b/nuttx/configs/nucleus2g/usbserial/defconfig
@@ -343,7 +343,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/nucleus2g/usbstorage/defconfig b/nuttx/configs/nucleus2g/usbstorage/defconfig
index be4fcb8353..0d6cb4f6de 100755
--- a/nuttx/configs/nucleus2g/usbstorage/defconfig
+++ b/nuttx/configs/nucleus2g/usbstorage/defconfig
@@ -343,7 +343,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-lpc1766stk/ftpc/defconfig b/nuttx/configs/olimex-lpc1766stk/ftpc/defconfig
index e74769243d..9fc6d6f5d0 100755
--- a/nuttx/configs/olimex-lpc1766stk/ftpc/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/ftpc/defconfig
@@ -354,7 +354,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-lpc1766stk/hidkbd/defconfig b/nuttx/configs/olimex-lpc1766stk/hidkbd/defconfig
index b2902da09b..f6e69d3913 100755
--- a/nuttx/configs/olimex-lpc1766stk/hidkbd/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/hidkbd/defconfig
@@ -356,7 +356,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-lpc1766stk/nettest/defconfig b/nuttx/configs/olimex-lpc1766stk/nettest/defconfig
index f19033a8f2..d072367b69 100755
--- a/nuttx/configs/olimex-lpc1766stk/nettest/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/nettest/defconfig
@@ -356,7 +356,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-lpc1766stk/nsh/defconfig b/nuttx/configs/olimex-lpc1766stk/nsh/defconfig
index 9b19e5efb6..0ad922ed39 100755
--- a/nuttx/configs/olimex-lpc1766stk/nsh/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/nsh/defconfig
@@ -357,7 +357,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-lpc1766stk/nx/defconfig b/nuttx/configs/olimex-lpc1766stk/nx/defconfig
index 2d0fdb6bca..d50e3b1605 100755
--- a/nuttx/configs/olimex-lpc1766stk/nx/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/nx/defconfig
@@ -360,7 +360,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-lpc1766stk/ostest/defconfig b/nuttx/configs/olimex-lpc1766stk/ostest/defconfig
index e4351bdb41..92aba7837c 100755
--- a/nuttx/configs/olimex-lpc1766stk/ostest/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/ostest/defconfig
@@ -349,7 +349,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-lpc1766stk/slip-httpd/defconfig b/nuttx/configs/olimex-lpc1766stk/slip-httpd/defconfig
index 2a206daa17..79d3c7311c 100755
--- a/nuttx/configs/olimex-lpc1766stk/slip-httpd/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/slip-httpd/defconfig
@@ -351,7 +351,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=2048
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-lpc1766stk/thttpd/defconfig b/nuttx/configs/olimex-lpc1766stk/thttpd/defconfig
index 9d50689222..52277615dc 100755
--- a/nuttx/configs/olimex-lpc1766stk/thttpd/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/thttpd/defconfig
@@ -349,7 +349,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-lpc1766stk/usbserial/defconfig b/nuttx/configs/olimex-lpc1766stk/usbserial/defconfig
index d6f64bc1c5..27f8793903 100755
--- a/nuttx/configs/olimex-lpc1766stk/usbserial/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/usbserial/defconfig
@@ -350,7 +350,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-lpc1766stk/usbstorage/defconfig b/nuttx/configs/olimex-lpc1766stk/usbstorage/defconfig
index e2e28fddc1..42f6dfac77 100755
--- a/nuttx/configs/olimex-lpc1766stk/usbstorage/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/usbstorage/defconfig
@@ -350,7 +350,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-lpc1766stk/wlan/defconfig b/nuttx/configs/olimex-lpc1766stk/wlan/defconfig
index c5bd22c75c..769185afc8 100755
--- a/nuttx/configs/olimex-lpc1766stk/wlan/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/wlan/defconfig
@@ -350,7 +350,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-stm32-p107/nsh/defconfig b/nuttx/configs/olimex-stm32-p107/nsh/defconfig
index f12b7e560c..c405163689 100644
--- a/nuttx/configs/olimex-stm32-p107/nsh/defconfig
+++ b/nuttx/configs/olimex-stm32-p107/nsh/defconfig
@@ -409,7 +409,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-stm32-p107/ostest/defconfig b/nuttx/configs/olimex-stm32-p107/ostest/defconfig
index 194e61e3ac..26a04d5564 100644
--- a/nuttx/configs/olimex-stm32-p107/ostest/defconfig
+++ b/nuttx/configs/olimex-stm32-p107/ostest/defconfig
@@ -436,7 +436,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/olimex-strp711/nettest/defconfig b/nuttx/configs/olimex-strp711/nettest/defconfig
index d89b03815a..7b09516476 100755
--- a/nuttx/configs/olimex-strp711/nettest/defconfig
+++ b/nuttx/configs/olimex-strp711/nettest/defconfig
@@ -313,7 +313,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/pcblogic-pic32mx/nsh/defconfig b/nuttx/configs/pcblogic-pic32mx/nsh/defconfig
index 754b621deb..e9c79c98f0 100644
--- a/nuttx/configs/pcblogic-pic32mx/nsh/defconfig
+++ b/nuttx/configs/pcblogic-pic32mx/nsh/defconfig
@@ -367,7 +367,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/pcblogic-pic32mx/ostest/defconfig b/nuttx/configs/pcblogic-pic32mx/ostest/defconfig
index 42594155ff..fd42230579 100644
--- a/nuttx/configs/pcblogic-pic32mx/ostest/defconfig
+++ b/nuttx/configs/pcblogic-pic32mx/ostest/defconfig
@@ -359,7 +359,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/sam3u-ek/knsh/defconfig b/nuttx/configs/sam3u-ek/knsh/defconfig
index 9cfda50cc1..cac79c8e89 100755
--- a/nuttx/configs/sam3u-ek/knsh/defconfig
+++ b/nuttx/configs/sam3u-ek/knsh/defconfig
@@ -335,7 +335,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/sam3u-ek/nsh/defconfig b/nuttx/configs/sam3u-ek/nsh/defconfig
index 1b492d4592..e1e21b0dfb 100755
--- a/nuttx/configs/sam3u-ek/nsh/defconfig
+++ b/nuttx/configs/sam3u-ek/nsh/defconfig
@@ -315,7 +315,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/sam3u-ek/nx/defconfig b/nuttx/configs/sam3u-ek/nx/defconfig
index 76c7635b52..719afdaee0 100755
--- a/nuttx/configs/sam3u-ek/nx/defconfig
+++ b/nuttx/configs/sam3u-ek/nx/defconfig
@@ -316,7 +316,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/sam3u-ek/ostest/defconfig b/nuttx/configs/sam3u-ek/ostest/defconfig
index 68cfc8a592..b0283c1c25 100755
--- a/nuttx/configs/sam3u-ek/ostest/defconfig
+++ b/nuttx/configs/sam3u-ek/ostest/defconfig
@@ -316,7 +316,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/sam3u-ek/touchscreen/defconfig b/nuttx/configs/sam3u-ek/touchscreen/defconfig
index 9469754479..ef1954a51f 100755
--- a/nuttx/configs/sam3u-ek/touchscreen/defconfig
+++ b/nuttx/configs/sam3u-ek/touchscreen/defconfig
@@ -321,7 +321,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/sim/nsh2/defconfig b/nuttx/configs/sim/nsh2/defconfig
index 60f3b0d82b..9f6e038ef5 100644
--- a/nuttx/configs/sim/nsh2/defconfig
+++ b/nuttx/configs/sim/nsh2/defconfig
@@ -190,7 +190,7 @@ CONFIG_SIG_SIGWORK=4
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SCHED_WAITPID=y
diff --git a/nuttx/configs/stm3210e-eval/RIDE/defconfig b/nuttx/configs/stm3210e-eval/RIDE/defconfig
index abb5ee5d23..6ea54c1882 100755
--- a/nuttx/configs/stm3210e-eval/RIDE/defconfig
+++ b/nuttx/configs/stm3210e-eval/RIDE/defconfig
@@ -375,7 +375,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3210e-eval/buttons/defconfig b/nuttx/configs/stm3210e-eval/buttons/defconfig
index 9f5d26b126..2fdebae711 100644
--- a/nuttx/configs/stm3210e-eval/buttons/defconfig
+++ b/nuttx/configs/stm3210e-eval/buttons/defconfig
@@ -387,7 +387,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3210e-eval/composite/defconfig b/nuttx/configs/stm3210e-eval/composite/defconfig
index be80e7e67c..fc35efdc19 100755
--- a/nuttx/configs/stm3210e-eval/composite/defconfig
+++ b/nuttx/configs/stm3210e-eval/composite/defconfig
@@ -381,7 +381,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3210e-eval/nsh/defconfig b/nuttx/configs/stm3210e-eval/nsh/defconfig
index 852c528930..e27cb955e6 100755
--- a/nuttx/configs/stm3210e-eval/nsh/defconfig
+++ b/nuttx/configs/stm3210e-eval/nsh/defconfig
@@ -383,7 +383,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3210e-eval/nsh2/defconfig b/nuttx/configs/stm3210e-eval/nsh2/defconfig
index d04bd814b6..87b6e9cce9 100644
--- a/nuttx/configs/stm3210e-eval/nsh2/defconfig
+++ b/nuttx/configs/stm3210e-eval/nsh2/defconfig
@@ -442,7 +442,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3210e-eval/nx/defconfig b/nuttx/configs/stm3210e-eval/nx/defconfig
index 1f2453a4de..d221390550 100644
--- a/nuttx/configs/stm3210e-eval/nx/defconfig
+++ b/nuttx/configs/stm3210e-eval/nx/defconfig
@@ -381,7 +381,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3210e-eval/nxconsole/defconfig b/nuttx/configs/stm3210e-eval/nxconsole/defconfig
index 73726999ac..db6e45188f 100644
--- a/nuttx/configs/stm3210e-eval/nxconsole/defconfig
+++ b/nuttx/configs/stm3210e-eval/nxconsole/defconfig
@@ -381,7 +381,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3210e-eval/nxlines/defconfig b/nuttx/configs/stm3210e-eval/nxlines/defconfig
index ccb22ad5a9..46e2573632 100644
--- a/nuttx/configs/stm3210e-eval/nxlines/defconfig
+++ b/nuttx/configs/stm3210e-eval/nxlines/defconfig
@@ -381,7 +381,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3210e-eval/nxtext/defconfig b/nuttx/configs/stm3210e-eval/nxtext/defconfig
index 0b3289d94a..471c0f5fe2 100644
--- a/nuttx/configs/stm3210e-eval/nxtext/defconfig
+++ b/nuttx/configs/stm3210e-eval/nxtext/defconfig
@@ -381,7 +381,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3210e-eval/ostest/defconfig b/nuttx/configs/stm3210e-eval/ostest/defconfig
index df10dff3a8..891e1c0a77 100755
--- a/nuttx/configs/stm3210e-eval/ostest/defconfig
+++ b/nuttx/configs/stm3210e-eval/ostest/defconfig
@@ -411,7 +411,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3210e-eval/pm/defconfig b/nuttx/configs/stm3210e-eval/pm/defconfig
index 8434abf1be..6068d9ea15 100644
--- a/nuttx/configs/stm3210e-eval/pm/defconfig
+++ b/nuttx/configs/stm3210e-eval/pm/defconfig
@@ -452,7 +452,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3210e-eval/usbserial/defconfig b/nuttx/configs/stm3210e-eval/usbserial/defconfig
index 897efd166a..6c9d12ec86 100755
--- a/nuttx/configs/stm3210e-eval/usbserial/defconfig
+++ b/nuttx/configs/stm3210e-eval/usbserial/defconfig
@@ -386,7 +386,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3210e-eval/usbstorage/defconfig b/nuttx/configs/stm3210e-eval/usbstorage/defconfig
index eab8e31f6f..29753c53da 100755
--- a/nuttx/configs/stm3210e-eval/usbstorage/defconfig
+++ b/nuttx/configs/stm3210e-eval/usbstorage/defconfig
@@ -381,7 +381,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3220g-eval/dhcpd/defconfig b/nuttx/configs/stm3220g-eval/dhcpd/defconfig
index 7a211ddc9d..6beaab3727 100644
--- a/nuttx/configs/stm3220g-eval/dhcpd/defconfig
+++ b/nuttx/configs/stm3220g-eval/dhcpd/defconfig
@@ -487,7 +487,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3220g-eval/nettest/defconfig b/nuttx/configs/stm3220g-eval/nettest/defconfig
index ade4bbe97f..5ad68ed4c6 100644
--- a/nuttx/configs/stm3220g-eval/nettest/defconfig
+++ b/nuttx/configs/stm3220g-eval/nettest/defconfig
@@ -487,7 +487,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3220g-eval/ostest/defconfig b/nuttx/configs/stm3220g-eval/ostest/defconfig
index 0cb5f37f00..a105faece6 100644
--- a/nuttx/configs/stm3220g-eval/ostest/defconfig
+++ b/nuttx/configs/stm3220g-eval/ostest/defconfig
@@ -486,7 +486,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3220g-eval/telnetd/defconfig b/nuttx/configs/stm3220g-eval/telnetd/defconfig
index d8b3608873..b390eb8c60 100644
--- a/nuttx/configs/stm3220g-eval/telnetd/defconfig
+++ b/nuttx/configs/stm3220g-eval/telnetd/defconfig
@@ -487,7 +487,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3240g-eval/dhcpd/defconfig b/nuttx/configs/stm3240g-eval/dhcpd/defconfig
index 080c375121..ef807dd892 100644
--- a/nuttx/configs/stm3240g-eval/dhcpd/defconfig
+++ b/nuttx/configs/stm3240g-eval/dhcpd/defconfig
@@ -497,7 +497,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3240g-eval/nettest/defconfig b/nuttx/configs/stm3240g-eval/nettest/defconfig
index 9097f5b947..499a88ce21 100644
--- a/nuttx/configs/stm3240g-eval/nettest/defconfig
+++ b/nuttx/configs/stm3240g-eval/nettest/defconfig
@@ -497,7 +497,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3240g-eval/ostest/defconfig b/nuttx/configs/stm3240g-eval/ostest/defconfig
index 3afabeb69d..cb10053141 100644
--- a/nuttx/configs/stm3240g-eval/ostest/defconfig
+++ b/nuttx/configs/stm3240g-eval/ostest/defconfig
@@ -494,7 +494,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm3240g-eval/telnetd/defconfig b/nuttx/configs/stm3240g-eval/telnetd/defconfig
index 27b6fc307a..e17328d519 100644
--- a/nuttx/configs/stm3240g-eval/telnetd/defconfig
+++ b/nuttx/configs/stm3240g-eval/telnetd/defconfig
@@ -497,7 +497,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm32f4discovery/README.txt b/nuttx/configs/stm32f4discovery/README.txt
index c2a269de30..93b8fee038 100755
--- a/nuttx/configs/stm32f4discovery/README.txt
+++ b/nuttx/configs/stm32f4discovery/README.txt
@@ -906,7 +906,7 @@ STM32F4Discovery-specific Configuration Options
      want to do that?
    CONFIG_STM32_USBHOST_REGDEBUG - Enable very low-level register access
      debug.  Depends on CONFIG_DEBUG.
-    CONFIG_STM32_USBHOST_PKTDUMP - Dump all incoming and outgoing USB
+   CONFIG_STM32_USBHOST_PKTDUMP - Dump all incoming and outgoing USB
      packets. Depends on CONFIG_DEBUG.
 
 Configurations
@@ -1066,19 +1066,65 @@ Where <subdir> is one of the following:
         you can still use certain kinds of debug output (see include/debug.h, all
         of the interfaces based on lib_lowprintf will work in this configuration).
 
-    8. USB OTG FS Device or Host Support
+    6. USB OTG FS Host Support.  The following changes will enable support for
+       a USB host on the STM32F4Discovery, including support for a mass storage
+       class driver:
  
-       CONFIG_USBDEV          - Enable USB device support, OR
-       CONFIG_USBHOST         - Enable USB host support (but not both)
+       CONFIG_USBDEV=n          - Make sure tht USB device support is disabled
+       CONFIG_USBHOST=y         - Enable USB host support
+       CONFIG_STM32_OTGFS=y     - Enable the STM32 USB OTG FS block
+       CONFIG_STM32_SYSCFG=y    - Needed for all USB OTF FS support
+       CONFIG_SCHED_WORKQUEUE=y - Worker thread support is required for the mass
+                                  storage class driver.
+       CONFIG_NSH_ARCHINIT=y    - Architecture specific USB initialization
+                                  is needed for NSH
+       CONFIG_FS_FAT=y          - Needed by the USB host mass storage class.
+
+       With those changes, you can use NSH with a FLASH pen driver as shown
+       belong.  Here NSH is started with nothing in the USB host slot:
+
+       NuttShell (NSH) NuttX-x.yy
+       nsh> ls /dev
+       /dev:
+        console
+        null
+        ttyS0
+
+       After inserting the FLASH drive, the /dev/sda appears and can be
+       mounted like this:
+
+       nsh> ls /dev
+       /dev:
+        console
+        null
+        sda
+        ttyS0
+       nsh> mount -t vfat /dev/sda /mnt/stuff
+       nsh> ls /mnt/stuff
+       /mnt/stuff:
+        -rw-rw-rw-   16236 filea.c
+
+       And files on the FLASH can be manipulated to standard interfaces:
+
+       nsh> echo "This is a test" >/mnt/stuff/atest.txt
+       nsh> ls /mnt/stuff
+       /mnt/stuff:
+        -rw-rw-rw-   16236 filea.c
+        -rw-rw-rw-      16 atest.txt
+       nsh> cat /mnt/stuff/atest.txt
+       This is a test
+       nsh> cp /mnt/stuff/filea.c fileb.c
+       nsh> ls /mnt/stuff
+       /mnt/stuff:
+        -rw-rw-rw-   16236 filea.c
+        -rw-rw-rw-      16 atest.txt
+        -rw-rw-rw-   16236 fileb.c
+
+       To prevent data loss, don't forget to un-mount the FLASH drive
+       before removing it:
+
+       nsh> umount /mnt/stuff
 
-       CONFIG_STM32_OTGFS     - Enable the STM32 USB OTG FS block
-       CONFIG_STM32_SYSCFG    - Needed for all USB OTF FS support
-
-       CONFIG_SCHED_WORKQUEUE - Worker thread support is required for the mass
-                                storage class (both host and device).
-       CONFIG_NSH_ARCHINIT    - Architecture specific USB initialization
-                                is needed
- 
   nxlines:
   ------
     An example using the NuttX graphics system (NX).   This example focuses on
diff --git a/nuttx/configs/stm32f4discovery/nsh/defconfig b/nuttx/configs/stm32f4discovery/nsh/defconfig
index dede37af15..69d4e717cf 100644
--- a/nuttx/configs/stm32f4discovery/nsh/defconfig
+++ b/nuttx/configs/stm32f4discovery/nsh/defconfig
@@ -488,7 +488,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm32f4discovery/nxlines/defconfig b/nuttx/configs/stm32f4discovery/nxlines/defconfig
index 5bcfeec822..0e006f4a58 100644
--- a/nuttx/configs/stm32f4discovery/nxlines/defconfig
+++ b/nuttx/configs/stm32f4discovery/nxlines/defconfig
@@ -488,7 +488,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm32f4discovery/ostest/defconfig b/nuttx/configs/stm32f4discovery/ostest/defconfig
index 438694af2f..dfdea14d5d 100644
--- a/nuttx/configs/stm32f4discovery/ostest/defconfig
+++ b/nuttx/configs/stm32f4discovery/ostest/defconfig
@@ -461,7 +461,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/stm32f4discovery/pm/defconfig b/nuttx/configs/stm32f4discovery/pm/defconfig
index 58b7df7cba..799eea34cc 100644
--- a/nuttx/configs/stm32f4discovery/pm/defconfig
+++ b/nuttx/configs/stm32f4discovery/pm/defconfig
@@ -489,7 +489,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/sure-pic32mx/ostest/defconfig b/nuttx/configs/sure-pic32mx/ostest/defconfig
index b51a982078..4a5bdddda3 100644
--- a/nuttx/configs/sure-pic32mx/ostest/defconfig
+++ b/nuttx/configs/sure-pic32mx/ostest/defconfig
@@ -359,7 +359,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/sure-pic32mx/usbnsh/defconfig b/nuttx/configs/sure-pic32mx/usbnsh/defconfig
index 0adaf1d91e..5f033fb333 100644
--- a/nuttx/configs/sure-pic32mx/usbnsh/defconfig
+++ b/nuttx/configs/sure-pic32mx/usbnsh/defconfig
@@ -376,7 +376,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/teensy/hello/defconfig b/nuttx/configs/teensy/hello/defconfig
index 897954923c..560c637311 100644
--- a/nuttx/configs/teensy/hello/defconfig
+++ b/nuttx/configs/teensy/hello/defconfig
@@ -281,7 +281,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/teensy/nsh/defconfig b/nuttx/configs/teensy/nsh/defconfig
index 5325d0e7d5..590c6d9b57 100755
--- a/nuttx/configs/teensy/nsh/defconfig
+++ b/nuttx/configs/teensy/nsh/defconfig
@@ -284,7 +284,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/teensy/usbstorage/defconfig b/nuttx/configs/teensy/usbstorage/defconfig
index 7972993b73..230e5c3e97 100755
--- a/nuttx/configs/teensy/usbstorage/defconfig
+++ b/nuttx/configs/teensy/usbstorage/defconfig
@@ -281,7 +281,7 @@ CONFIG_FDCLONE_DISABLE=n
 CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/twr-k60n512/nsh/defconfig b/nuttx/configs/twr-k60n512/nsh/defconfig
index 578b086798..1b24745a25 100644
--- a/nuttx/configs/twr-k60n512/nsh/defconfig
+++ b/nuttx/configs/twr-k60n512/nsh/defconfig
@@ -419,7 +419,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/twr-k60n512/ostest/defconfig b/nuttx/configs/twr-k60n512/ostest/defconfig
index 239fb0a83f..1b8153ad83 100644
--- a/nuttx/configs/twr-k60n512/ostest/defconfig
+++ b/nuttx/configs/twr-k60n512/ostest/defconfig
@@ -418,7 +418,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=n
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4
diff --git a/nuttx/configs/vsn/nsh/defconfig b/nuttx/configs/vsn/nsh/defconfig
index 47e670b58e..1f7300f727 100755
--- a/nuttx/configs/vsn/nsh/defconfig
+++ b/nuttx/configs/vsn/nsh/defconfig
@@ -414,7 +414,7 @@ CONFIG_FDCLONE_STDIO=n
 CONFIG_SDCLONE_DISABLE=y
 CONFIG_NXFLAT=n
 CONFIG_SCHED_WORKQUEUE=y
-CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPRIORITY=192
 CONFIG_SCHED_WORKPERIOD=50000
 CONFIG_SCHED_WORKSTACKSIZE=1024
 CONFIG_SIG_SIGWORK=4