How do I verify that I'm running latest-n-greatest?

tom · 5 Oct 2022, 19:59

@Ed-Sutter Okay cool, well in that case I would recommend building the kernel using voxl-build, flashing the kernel, and seeing if there is a difference in performance.

Ed Sutter · 5 Oct 2022, 20:23

@tom Ok I did that but now I'm scared...
I had built the kernel yesterday, so I ran through the steps in "Testing the Kernel Before Flashing" and everything checked out (the timestamp changed).
I then followed the steps in "Flashing the Kernel", got this output:

$: fastboot flash boot /opt/data/workspace/poky/build/tmp-glibc/deploy/images/apq8096-drone/apq8096-boot.
img
target reported max download size of 536870912 bytes
sending 'boot' (56096 KB)...
OKAY [  1.551s]
writing 'boot'...
OKAY [  0.429s]
finished. total time: 1.980s

but then typed adb devices and got this output:

$: adb devices
List of devices attached

$:

I have not reset or power-cycled anything yet. Should I do that?

tom · 5 Oct 2022, 20:24

@Ed-Sutter Yeah you have to reboot or run fastboot reboot, it's still in fastboot mode. For example it'll probably show up with fastboot devices

Ed Sutter · 5 Oct 2022, 20:27

@tom PHEW! Ok, good... It did reboot with the recent kernel image. Now I have to run my tests to see if that helped my modem issue.
Thanks much for the help, I'll post back here to let you know if it fixed my problem.

tom · 5 Oct 2022, 20:29

@Ed-Sutter Great! I updated the README to make that step more clear.

Ed Sutter · 5 Oct 2022, 21:06

@tom Well, bummer... It didn't help. My test already locked up.

tom · 5 Oct 2022, 21:13

@Ed-Sutter Hmm not too sure where to go from here other than contact Sierra for ideas.

In the past we've used scripts that run in the background that monitor a network connection and re-enables the connection if it drops off, that might be the route to go.

It would be a modified version of something like this: https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-modem/-/blob/master/scripts/modallink_relink.py

Ed Sutter · 5 Oct 2022, 21:25

@tom Thanks!

Ed Sutter · 11 Oct 2022, 21:07

@tom I just noticed something... When sierra.py runs, the very last thing it does is write 'Y' into /sys/class/net/wwan0/qmi/raw_ip. That write is successful, but then a few seconds later, I can cat that file and see 'N'.
What is running after sierra.py that would do that?

tom · 11 Oct 2022, 21:14

@Ed-Sutter I'm not sure, I think you'd have to dig through the qmi_wwan driver

Steve Turner · 14 Oct 2022, 19:48

Apologies for highjacking the thread and being a noob, but @Ed-Sutter are you able to build a system image from https://gitlab.com/voxl-public/system-image-build/meta-voxl ?

Or is this the kernel only that you then install ontop of an existing system image?

tom · 14 Oct 2022, 20:37

@Steve-Turner voxl-build allows you to build the kernel only which you can then flash on top of an existing system. Qualcomm licenses are required in order to build a full system image.