[Buildroot] [Bug 15910] New: USB keyboard working on Raspberry CM4 IO with "raspberrypicm4io_64_defconfig"

[Buildroot] [Bug 15910] New: USB keyboard working on Raspberry CM4 IO with "raspberrypicm4io_64_defconfig"

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15910

            Bug ID: 15910
           Summary: USB keyboard working on Raspberry CM4 IO with
                    "raspberrypicm4io_64_defconfig"
           Product: buildroot
           Version: unspecified
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned@buildroot.uclibc.org
          Reporter: benoit@mubiance.com
                CC: buildroot@uclibc.org
  Target Milestone: ---

I use the last :  Buildroot 2023.11-512-gd1c067e01b.

Without changing any options in "make menuconfig" excepted setting a root
password

1. "make raspberrypicm4io_64_defconfig"
2. "make"
3. install on a Compute module 4 with its standard IO board.
4. I always boot with a screen + i ve tested various USB keyboard.

The log are correct, some usb device are detected. 
I m stuck on the prompt: "buildroot login: _"

Nothing Happens in the TTY when i press keys.

Note that the generated config.txt contains : 
# enable dwc2 USB controller (USB 2.0)
dtoverlay=dwc2,dr_mode=host

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[Buildroot] [Bug 15910] USB keyboard is not working by default "raspberrypicm4io_64_defconfig"

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15910

Benoit Pereira da Silva <benoit@mubiance.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|USB keyboard working on     |USB keyboard is not working
                   |Raspberry CM4 IO with       |by default
                   |"raspberrypicm4io_64_defcon |"raspberrypicm4io_64_defcon
                   |fig"                        |fig"

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[Buildroot] [Bug 15910] USB keyboard is not working by default "raspberrypicm4io_64_defconfig"

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15910

--- Comment #1 from Peter Seiderer <ps.report@gmx.net> ---
You need to load the module dwc2 ('modprobe dwc2' either over the serial
console or from a startup script) AND disconnect micro USB port (J11 USB slave)
you connected for flashing..., alternative is to enable '/dev management
(Dynamic using devtmpfs + eudev' (BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y)
for automatic module loading AND do not forget to disconnect micro USB port
(J11 USB slave) you connected for flashing...

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[Buildroot] [Bug 15910] USB keyboard is not working by default "raspberrypicm4io_64_defconfig"

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15910

Benoit Pereira da Silva <benoit@mubiance.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #2 from Benoit Pereira da Silva <benoit@mubiance.com> ---
Peter, 

Thank you very much setting /dev management (Dynamic using devtmpfs + eudev)
Did solve my issue. 

I'm a newbie to buildroot, and did not know that "dev" were strictly static and
i need to activate  "devtmpfs + eudev". 

I will read attentively the documentation next time.

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