How to find resource that causes "Resource Busy" message?

Nathan Guyette

Currently I'm trying to run the command:
i2cset -y 0 0x10 0x15 0x03

But I get an error message:
Error: Could not set address to 0x10: Resource busy

I assume this means some other process is using the device I want to write to. I'm looking for an easy way to find this resource or resources, and kill them / it.

György Farkas

@Nathan-Guyette What firmware version are you using please?
Are you using some I2C device(s) in your Omega2 system now?
Which one(s)?

Nathan Guyette

Firmware
I couldn't find anything titled "firmware" though I did find the Kernel. Is this the same thing? The Kernel is 4.4.74

I2C device
This is a piezoelectric alarm.

William Scott

Use the following command to get the F/W version:

> Device Firmware Version: 0.2.2 b201
> Checking latest version online...
url: https://api.onioniot.com/firmware/omega2p/stable
> Repo Firmware Version: 0.2.2 b200
> Comparing version numbers
> Device firmware is up to date!

György Farkas

@Nathan-Guyette Please use the oupgrade -v and/or the onion os version commands:

# Omega2+ firmware v0.3.2 b223

root@Omega-5BE1:~# oupgrade -v
> Device Firmware Version: 0.3.2 b223

root@Omega-5BE1:~# onion os version
=== Version Info ===
Omega firmware: v0.3.2 b223
onion-os - 1.0.6-1

I'm afraid a "piezoelectric alarm" (a buzzer) is not an I2C device.

For example there is an integrated circuit (IC) on Onion's Relay Expansion. It's an I2C device.
Or please take a look at this guide:
SparkFun Qwiic Starter Kit for Onion Omega Quickstart
I haven't tried either this Onion kit or SparkFun's qwiic (yet ;-).

Just out of sheer curiosity - do you really have an Onion2S+?
Do you have / did you make some custom dock for this SM module ?

Nathan Guyette

This is all custom stuff that was thrown together, which we don't have any schematics for...

György Farkas

@Nathan-Guyette said in How to find resource that causes "Resource Busy" message?:

Currently I'm trying to run the command:
i2cset -y 0 0x10 0x15 0x03

But I get an error message:
Error: Could not set address to 0x10: Resource busy

I assume this means some other process is using the device I want to write to. I'm looking for an easy way to find this resource or resources, and kill them / it.

I know what resource should you "kill" ;-).
Do you also want to know?

Why don't you answer for this simple question:
What firmware version are you using ?

Nathan Guyette

=== Version Info ===
Omega firmware: v0.2.1 b199
onion-os - 1.0.5-1