multi-thread I2C synchronization

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MikeLemon
Posts: 45
Joined: Tue Feb 02, 2021 5:55 pm

Re: multi-thread I2C synchronization

Postby MikeLemon » Sun Feb 14, 2021 4:26 pm

2+ Years later...

Is there a proper solution yet?
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PeterR
Posts: 621
Joined: Mon Jun 04, 2018 2:47 pm

Re: multi-thread I2C synchronization

Postby PeterR » Tue Feb 16, 2021 11:18 pm

Like Wifi says, mutex. May add an extra mutex but cost is low and you can sleep safe.
Its not normal to use a device/driver from multiple threads. If the driver has to cover these RT bases then the driver would get fat and slow.
So best that these particular use/cases are handled at the application level.
& I also believe that IDF CAN should be fixed.
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JakubKral
Posts: 2
Joined: Sun Jun 01, 2025 10:17 am

Re: multi-thread I2C synchronization

Postby JakubKral » Sat Nov 08, 2025 4:01 pm

You could also use i2c manager to handle it for you. See https://github.com/ropg/i2c_manager

Best regards
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