Which Khadas SBC do you use?
Khadas VIM 3 Pro
Which system do you use? Android, Ubuntu, OOWOW or others?
Ubuntu
Which version of system do you use? Khadas official images, self built images, or others?
4.9.241 → vim3-ubuntu-20.04-server-linux-4.9-fenix-1.3-221118-emmc
Please describe your issue below:
I’m trying to update some of the default connection parameters of the bluetooth system on the board which are available under /sys/kernel/debug/bluetooth/hci0
. (How to Set Linux BlueZ 5 Connection Parameters for Apple iOS Compatibility - Stack Overflow)
Problem is that I cannot update them due to an echo error. Any suggestions how to update those values?
Post a console log of your issue below:
root@vim3:/sys/kernel/debug/bluetooth/hci0# echo 0 > conn_min_interval
-bash: echo: write error: Invalid argument