Switch between Arduino HiD and OTG over Webinterface possible? #284

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opened 2026-02-20 13:23:56 -05:00 by deekerman · 3 comments

deekerman commented

2026-02-20 13:23:56 -05:00

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Originally created by @semool on GitHub (Jun 28, 2021).

Originally assigned to: @mdevaev on GitHub.

First, great Software. I have build me a v2 Version with an rpi4-4GB and its working great on my three Nuc Systems (a Proxmox Cluster).

But i have another "old" Machine for Testing things and OTG isnt working (only detecting MSD in Bios). After consulting the Pages on github i have build a Arduino HiD for this Machine and with this second USB Cable the Keyboard is working after is switching the HiD Mode in override.yaml.

Great so far, but... all three Nuc Machines and the old one are connected to a ezcoo switch.When i control the old machine i must switch to Arduino HiD. I have made me a small script which is working for this:

#!/bin/bash
if [ "$1" == "hid" ]; then
   MODE="arduino"
 else
   MODE="otg"
fi
rw
ln -sf /etc/kvmd/override.yaml_$MODE /etc/kvmd/override.yaml
ro
systemctl restart kvmd
exit

It is possible to add a Button in the Webif to make this switch? Eventually without a kvmd restart?

Edit:
Eventually with an extension to the ezcoo Code? So that when i switch to this port its automaticly changed to the Arduino HiD and back to otg on the Ports where not have set "hid: arduino"?!

ch3_button:
                driver: ez
                pin: 3
                mode: output
                switch: false
                hid: arduino

Originally created by @semool on GitHub (Jun 28, 2021). Originally assigned to: @mdevaev on GitHub. First, great Software. I have build me a v2 Version with an rpi4-4GB and its working great on my three Nuc Systems (a Proxmox Cluster). But i have another "old" Machine for Testing things and OTG isnt working (only detecting MSD in Bios). After consulting the Pages on github i have build a Arduino HiD for this Machine and with this second USB Cable the Keyboard is working after is switching the HiD Mode in override.yaml. Great so far, but... all three Nuc Machines and the old one are connected to a ezcoo switch.When i control the old machine i must switch to Arduino HiD. I have made me a small script which is working for this: ``` #!/bin/bash if [ "$1" == "hid" ]; then MODE="arduino" else MODE="otg" fi rw ln -sf /etc/kvmd/override.yaml_$MODE /etc/kvmd/override.yaml ro systemctl restart kvmd exit ``` It is possible to add a Button in the Webif to make this switch? Eventually without a kvmd restart? Edit: Eventually with an extension to the ezcoo Code? So that when i switch to this port its automaticly changed to the Arduino HiD and back to otg on the Ports where not have set "hid: arduino"?! ``` ch3_button: driver: ez pin: 3 mode: output switch: false hid: arduino ```

deekerman

2026-02-20 13:23:56 -05:00

closed this issue
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resolution:fixed

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deekerman commented

2026-02-20 13:23:58 -05:00

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@mdevaev commented on GitHub (Jun 28, 2021):

Hi! Thanks.

You definitely can't do that. As you yourself point out, this requires a restart. During the restart, all internal mechanisms and data structures are reinitialized. Moreover, your script will only work if the last HID mode was OTG before rebooting, since it requires special settings for the USB controller.

@mdevaev commented on GitHub (Jun 28, 2021): Hi! Thanks. You definitely can't do that. As you yourself point out, this requires a restart. During the restart, all internal mechanisms and data structures are reinitialized. Moreover, your script will only work if the last HID mode was OTG before rebooting, since it requires special settings for the USB controller.

deekerman commented

2026-02-20 13:23:59 -05:00

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Owner

@semool commented on GitHub (Jun 29, 2021):

Ok thank you. Then i will wait and buy a v3 when its available for the ezcoo switch and the v2 moves over to the old machine.

@semool commented on GitHub (Jun 29, 2021): Ok thank you. Then i will wait and buy a v3 when its available for the ezcoo switch and the v2 moves over to the old machine.

deekerman commented

2026-02-20 13:23:59 -05:00

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Owner

@mdevaev commented on GitHub (Jun 29, 2021):

Welcome

@mdevaev commented on GitHub (Jun 29, 2021): Welcome

deekerman referenced this issue

2026-02-20 14:09:06 -05:00

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