How to change OTG mode from serial to HID keyboard on the Orange pi zero?

[Abdullah Seba]

Hi

I'm a newbie to Armbian and just got the Orange Pi Zero.

I want it to behave as a keyboard on the OTG port. Right now it works as a serial console.

I cant find any docs on this anywhere and I'm not clued up on Linux to mess around  too much

Can any one help?

Thanks in advance.  

[Abdullah Seba]

No one here??????

[MitchD]

Which kernel are you using? If you are using mainline, I understand than the OTG options aren't there yet.

 

If on legacy, you can try: modprobe -r g_serial

followed by: modprobe g_hid

 

From there, see if any new devices are created.  Full documentation is here: https://www.kernel.org/doc/Documentation/usb/gadget_hid.txt

[Abdullah Seba]

Just now, MitchD said:

Which kernel are you using? If you are using mainline, I understand than the OTG options aren't there yet.

 

If on legacy, you can try: modprobe -r g_serial

followed by: modprobe g_hid

 

From there, see if any new devices are created.  Full documentation is here: https://www.kernel.org/doc/Documentation/usb/gadget_hid.txt

Thanks for  replying.

I'm using the latest from here https://www.armbian.com/orange-pi-zero/ marked as legacy stable.  Not sure what kernel it's using.

I tried `modprobe -r g_serial`  and got: `modprobe: FATAL: Module g_serial is in use.` I tried with the otg port plugged in and unplugged.

`modprobe g_hid` returned `modprobe: ERROR: could not insert 'g_hid': No such device`
 

[MitchD]

Sorry, put sudo before those commands and run them again. It must be run as root. I'll try with a legacy stable image tonight and see if I can get it operational.

[Abdullah Seba]

10 minutes ago, MitchD said:

Sorry, put sudo before those commands and run them again. It must be run as root. I'll try with a legacy stable image tonight and see if I can get it operational.

Same thing happened. Thanks

[MitchD]

Looks like g_hid is broken on this build of armbian. Not sure why this hasn't been patched yet. 

[Igor]

Try toggling: https://github.com/armbian/build/blob/master/config/fex/orangepizero.fex#L504

 

3 hours ago, MitchD said:

Not sure why this hasn't been patched yet. 

 

Afaik it should work. Perhaps unloading is not working as it should. This kernel is from some other times ... removal from /etc/modules and reboot might be needed.

 

Nobody is working on H3 legacy kernels anymore  Modern kernel will be here soon.

 

@Abdullah Seba Technical support is our free will. Our expense and we tend to rest on Sundays.

[zador.blood.stained]

7 hours ago, MitchD said:

Looks like g_hid is broken on this build of armbian. Not sure why this hasn't been patched yet. 

https://github.com/armbian/build/issues/593

[Abdullah Seba]

Hmm thanks for everyone's help I'll have to wait I guess.

[Abdullah Seba]

modprobe -r g_serial seems to work on the beta version but the serial concoction get lost and ssh doesn't work...

[Selda_bagcan]

Hello, i have been looking into this subject lately but couldn't find something useful. I want to be able to act as a mouse and keyboard with opi zero. I have some experience with programming and a bit of linux ecosystem so i i think i can look into/follow some stuff if you guide me. Also i know its off-topic but does gpio pins have any latency on them? I want to share data in real time between opi zero and rpi zero. Thank you for your attention. Sincerly

[Selda_bagcan]

Any news on this subject? Legacy kernel doesnt work either. I thought that 4.13 would bring hid-gatget mode too.