Armbian_23.02.2_Bananapim2plus_bullseye_current_5.15.93, udc driver error, dmeg output [ 1065.023248] udc-core: couldn't find an available UDC or it's busy

[wuji1893]

kernel version

Linux bananapim2plus 5.15.93-sunxi #23.02.2 SMP Fri Feb 17 23:49:46 UTC 2023 armv7l GNU/Linux

 

dmesg

[ 1065.023248] udc-core: couldn't find an available UDC or it's busy
[ 1065.023290] misc raw-gadget: fail, usb_gadget_probe_driver returned -16
[ 1193.665509] udc-core: couldn't find an available UDC or it's busy
[ 1193.665534] misc raw-gadget: fail, usb_gadget_probe_driver returned -16
[ 2883.115015] udc-core: couldn't find an available UDC or it's busy
[ 2883.115040] misc raw-gadget: fail, usb_gadget_probe_driver returned -16
[ 2908.077549] udc-core: couldn't find an available UDC or it's busy
[ 2908.077574] misc raw-gadget: fail, usb_gadget_probe_driver returned -16
[ 2918.836034] udc-core: couldn't find an available UDC or it's busy
[ 2918.836060] misc raw-gadget: fail, usb_gadget_probe_driver returned -16
[ 2941.725657] udc-core: couldn't find an available UDC or it's busy
[ 2941.725681] misc raw-gadget: fail, usb_gadget_probe_driver returned -16
[ 2968.413688] udc-core: couldn't find an available UDC or it's busy
[ 2968.413712] misc raw-gadget: fail, usb_gadget_probe_driver returned -16
 

[Werner]

Providing logs with 

armbianmonitor -u

 helps with troubleshooting and significantly raises chances that issue gets addressed.

[wuji1893]

thanks, but i don't known how to, when i run armbianmonitor -u, and run my process output this 

 

System diagnosis information will now be uploaded to

https://paste.armbian.com/eworihosos
Please post the URL in the forum where you've been asked for.

[wuji1893]

I found the question,    kernel load

g_serial

module  and the module make the udc  device  busy

Edited April 6, 2023 by wuji1893