Jarkko Sakkinen
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Jarkko Sakkinen
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@ncopa Yeah, I know, I test my own kernel tree on it. Otherwise, I test on QEMU but if I want to give a shot with real HW, this is my pick.
With SBC's you gotta know the gems ;-) For ARM the overally best choice is obviously Raspberry Pi 3B+. What makes this board special is broken TrustZone so you can deploy fTPM on it.
With SBC's you gotta know the gems ;-) For ARM the overally best choice is obviously Raspberry Pi 3B+. What makes this board special is broken TrustZone so you can deploy fTPM on it.
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The very first thing with this board is set the dip switches to SDIO mode ;-) Figure 4-10 in https://doc-en.rvspace.org/VisionFive2/PDF/VisionFive2_QSG.pdf
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Jarkko Sakkinen
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Mastodon Engineering
MastodonEngineering@mastodon.socialNew year, new role @Mastodon!
Our core team is looking for a senior Front-end Developer to elevate the web UI/UX experience for our users.
Ideally:
1. You are highly skilled in accessible and semantic #HTML
2. Proficient in modern #CSS
3. Experienced with #Javascript, #Typescript and complex React/Redux applications
This remote full-time position requires a 4-hour overlap with the CET timezone.
For more info/to apply:
https://jobs.ashbyhq.com/mastodon/6a0953c4-812b-4697-b5b3-ea0a2ae402c0
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Jarkko Sakkinen
jarkko
@kernellogger OK. It is useful for audio stuff like https://github.com/robbert-vdh/yabridge. Thus interested...
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Jarkko Sakkinen
jarkko
I wonder if a kselftest written with Python can depend on GStreamer? I.e. check and skip on failure.
I'm almost done converting the demo shown in my screencast from bash and fmpeg to python and gstreamer [1]. There has been bunch of blockers, like for example getting Python bindings compile in my BuildRoot environment (stable version bump helped).
One final peace that I was missing was how to pass a file descriptor to GStreamer pipeline but here it is:
https://gstreamer.freedesktop.org/documentation/coreelements/fdsrc.html
So... 1.5 weeks of scratching my head but this all work was absolutely required before making the breaking API change to the driver code (i.e. return file descriptor to an anoymous inode in the ioctl instead of writing to /dev/video0).
Now I need only a small tweak to the test program when I test that kernel change. FINALLY ready to go back to the fun i.e. kernel hacking ;-)
[1] https://social.kernel.org/notice/ApXBpAVuAyGBmcPye8
#linux #kernel #gstreamer #python #buildroot
I'm almost done converting the demo shown in my screencast from bash and fmpeg to python and gstreamer [1]. There has been bunch of blockers, like for example getting Python bindings compile in my BuildRoot environment (stable version bump helped).
One final peace that I was missing was how to pass a file descriptor to GStreamer pipeline but here it is:
https://gstreamer.freedesktop.org/documentation/coreelements/fdsrc.html
So... 1.5 weeks of scratching my head but this all work was absolutely required before making the breaking API change to the driver code (i.e. return file descriptor to an anoymous inode in the ioctl instead of writing to /dev/video0).
Now I need only a small tweak to the test program when I test that kernel change. FINALLY ready to go back to the fun i.e. kernel hacking ;-)
[1] https://social.kernel.org/notice/ApXBpAVuAyGBmcPye8
#linux #kernel #gstreamer #python #buildroot
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Jarkko Sakkinen
jarkko
When writing a system test for a media (aka V4L2) driver, Python and associated GStreamer bindings seem to be overall the sweet spot.
It has these perks:
- Packaged (unlike ffmpeg bindings).
- Can be injected during the post build.
- Has videotestsrc ;-)
#linux #kernel #media #gstreamer
It has these perks:
- Packaged (unlike ffmpeg bindings).
- Can be injected during the post build.
- Has videotestsrc ;-)
#linux #kernel #media #gstreamer
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@janantos Old article https://lwn.net/Articles/567288/. This company does not exist anymore (was acquired) but this article just has great bits on implementing flight control system with off-the-shelf hardware.
The ex-CEO is still active in space biz: https://www.chrislewicki.com/
Chris has so much more vision than Musk and Bezos combined together. He is the real G (eek) ;-) Kudos to Chris.
The ex-CEO is still active in space biz: https://www.chrislewicki.com/
Chris has so much more vision than Musk and Bezos combined together. He is the real G (eek) ;-) Kudos to Chris.
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Jarkko Sakkinen
jarkko
@janantos Asteroids are interesting because:
1. A single asteroid can have as much e.g. gold as we have here or like within figures at least. It's valuable enough that making sustainable might not require enormous cargo and obviously time tech improves and more could be mined.
2. As a side-effect we could address the classic threat scenario: asteroid impact on earth. If we can land on an asteroid, drill a hole and dig the gold, we also know how to implant a nuke, which changes the trajectory of an asteroid and saves the mankind from distinction.
It' has IMHO the best pitch of all possible out worldly things we could do in space ;-)
1. A single asteroid can have as much e.g. gold as we have here or like within figures at least. It's valuable enough that making sustainable might not require enormous cargo and obviously time tech improves and more could be mined.
2. As a side-effect we could address the classic threat scenario: asteroid impact on earth. If we can land on an asteroid, drill a hole and dig the gold, we also know how to implant a nuke, which changes the trajectory of an asteroid and saves the mankind from distinction.
It' has IMHO the best pitch of all possible out worldly things we could do in space ;-)
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Jarkko Sakkinen
jarkko
This is crucial if Arch Linux wants to be also a commercial option. Sloppy license management keeps it in the hobbyist niche.
https://lwn.net/Articles/998778/
#archlinux
https://lwn.net/Articles/998778/
#archlinux
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