diff --git a/Documentation/platforms/arm/stm32h7/boards/linum-stm32h753bi/index.rst b/Documentation/platforms/arm/stm32h7/boards/linum-stm32h753bi/index.rst
index 3e2c85d0d9c..65d38f22a9a 100644
--- a/Documentation/platforms/arm/stm32h7/boards/linum-stm32h753bi/index.rst
+++ b/Documentation/platforms/arm/stm32h7/boards/linum-stm32h753bi/index.rst
@@ -1087,6 +1087,37 @@ that the USB host and the SDMMC peripheral coexist::
   nsh> mount -t vfat /dev/mmcsd0 /data
   nsh> ls /data
 
+**Typing from the serial console instead.** The terminal reads a keyboard
+device, and it does not care which one, so it can be driven from the serial
+console with no keyboard plugged in at all. This configuration enables
+``UINPUT_KEYBOARD``, which registers a virtual keyboard on
+``/dev/ukeyboard``, and ``system/kbd``, which injects into it.
+
+Point the terminal at the virtual keyboard and bridge the console into it::
+
+  nsh> lvglterm /dev/ukeyboard &
+  nsh> kbd -i /dev/ukeyboard
+
+Everything typed on the serial console from that point on appears on the
+display. This is how to work on the terminal without the keyboard at hand,
+and how to reach the board over a serial link from another machine.
+
+To use both at once, forward the USB keyboard into the same virtual
+keyboard before starting the terminal::
+
+  nsh> kbd -i /dev/ukeyboard /dev/kbda &
+  nsh> lvglterm /dev/ukeyboard &
+  nsh> kbd -i /dev/ukeyboard
+
+The USB keyboard and the serial console now feed the same terminal, which
+an application cannot do on its own since it opens a single device.
+
+``UINPUT_KEYBOARD_BUFNUMBER`` is raised to 128 here. It counts events
+rather than keys, so the default of eight holds four keystrokes, and a
+console hands over a whole line at once. The keyboard upper half overwrites
+the oldest event when the buffer is full, so a line typed at the console
+would arrive with its beginning silently missing.
+
 tone
 ----
 
diff --git a/boards/arm/stm32h7/linum-stm32h753bi/configs/lvglterm_kbda/defconfig b/boards/arm/stm32h7/linum-stm32h753bi/configs/lvglterm_kbda/defconfig
index 490dc686d07..60c8ff2e28e 100644
--- a/boards/arm/stm32h7/linum-stm32h753bi/configs/lvglterm_kbda/defconfig
+++ b/boards/arm/stm32h7/linum-stm32h753bi/configs/lvglterm_kbda/defconfig
@@ -30,7 +30,8 @@ CONFIG_DEBUG_FEATURES=y
 CONFIG_DEBUG_SYMBOLS=y
 CONFIG_DRIVERS_VIDEO=y
 CONFIG_EXAMPLES_LVGLTERM=y
-CONFIG_EXAMPLES_LVGLTERM_INPUT_KBD_USB=y
+CONFIG_EXAMPLES_LVGLTERM_INPUT_KBD=y
+CONFIG_EXAMPLES_LVGLTERM_KBD_DEV="/dev/kbda"
 CONFIG_FAT_DMAMEMORY=y
 CONFIG_FAT_LCNAMES=y
 CONFIG_FAT_LFN=y
@@ -40,6 +41,7 @@ CONFIG_FS_PROCFS=y
 CONFIG_GRAN=y
 CONFIG_GRAN_INTR=y
 CONFIG_GRAPHICS_LVGL=y
+CONFIG_HIDKBD_NOGETREPORT=y
 CONFIG_INIT_ENTRYPOINT="nsh_main"
 CONFIG_INTELHEX_BINARY=y
 CONFIG_LIBC_EXECFUNCS=y
@@ -81,11 +83,15 @@ CONFIG_STM32_PWR=y
 CONFIG_STM32_RTC=y
 CONFIG_STM32_SDMMC1=y
 CONFIG_STM32_USART1=y
+CONFIG_SYSTEM_KBD=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_TASK_NAME_SIZE=0
 CONFIG_TESTING_RAMTEST=y
+CONFIG_UINPUT_KEYBOARD=y
+CONFIG_UINPUT_KEYBOARD_BUFNUMBER=128
 CONFIG_USART1_SERIAL_CONSOLE=y
 CONFIG_USBHOST=y
+CONFIG_USBHOST_ASYNCH=y
 CONFIG_USBHOST_HIDKBD=y
 CONFIG_USEC_PER_TICK=1000
 CONFIG_VIDEO_FB=y