diff --git a/samples/net/wpan_serial/prj.conf b/samples/net/wpan_serial/prj.conf
index 4f2c9fd97cf..f27acef7a16 100644
--- a/samples/net/wpan_serial/prj.conf
+++ b/samples/net/wpan_serial/prj.conf
@@ -2,9 +2,7 @@ CONFIG_GPIO=y
 CONFIG_ARC_INIT=n
 CONFIG_USB=y
 CONFIG_USB_DEVICE_STACK=y
-CONFIG_SYS_LOG_USB_DRIVER_LEVEL=0
 CONFIG_USB_CDC_ACM=y
-CONFIG_SYS_LOG_USB_LEVEL=0
 CONFIG_SERIAL=y
 CONFIG_UART_INTERRUPT_DRIVEN=y
 CONFIG_UART_LINE_CTRL=y
@@ -22,6 +20,8 @@ CONFIG_NET_BUF_DATA_SIZE=128
 CONFIG_SYS_LOG=y
 CONFIG_SYS_LOG_DEFAULT_LEVEL=3
 CONFIG_SYS_LOG_IEEE802154_DRIVER_LEVEL=1
+CONFIG_SYS_LOG_USB_DRIVER_LEVEL=1
+CONFIG_SYS_LOG_USB_LEVEL=1
 
 CONFIG_ENTROPY_GENERATOR=y
 CONFIG_TEST_RANDOM_GENERATOR=y
diff --git a/samples/subsys/usb/dfu/prj.conf b/samples/subsys/usb/dfu/prj.conf
index 6e38097fbc3..3e226972392 100644
--- a/samples/subsys/usb/dfu/prj.conf
+++ b/samples/subsys/usb/dfu/prj.conf
@@ -3,7 +3,8 @@ CONFIG_GPIO=y
 CONFIG_ARC_INIT=n
 CONFIG_USB=y
 CONFIG_USB_DEVICE_STACK=y
-CONFIG_SYS_LOG_USB_DRIVER_LEVEL=0
-CONFIG_SYS_LOG_USB_LEVEL=0
 CONFIG_FLASH=y
 CONFIG_SOC_FLASH_QMSI=y
+CONFIG_SYS_LOG=y
+CONFIG_SYS_LOG_USB_DRIVER_LEVEL=1
+CONFIG_SYS_LOG_USB_LEVEL=1
diff --git a/samples/subsys/usb/webusb/prj.conf b/samples/subsys/usb/webusb/prj.conf
index ff6de13da83..f922f817cb4 100644
--- a/samples/subsys/usb/webusb/prj.conf
+++ b/samples/subsys/usb/webusb/prj.conf
@@ -3,8 +3,10 @@ CONFIG_GPIO=y
 CONFIG_ARC_INIT=n
 CONFIG_USB=y
 CONFIG_USB_DEVICE_STACK=y
-CONFIG_SYS_LOG_USB_DRIVER_LEVEL=0
-CONFIG_SYS_LOG_USB_LEVEL=0
 CONFIG_SERIAL=y
 CONFIG_UART_INTERRUPT_DRIVEN=y
 CONFIG_UART_LINE_CTRL=y
+
+CONFIG_SYS_LOG=y
+CONFIG_SYS_LOG_USB_DRIVER_LEVEL=1
+CONFIG_SYS_LOG_USB_LEVEL=1