# Can't found i2c device node on mangOH yellow

**URL:** <https://mangoh.discourse.group/t/cant-found-i2c-device-node-on-mangoh-yellow/9178>\
**Category:** mangOH Yellow\
**Created:** [May 18, 2021, 3:22pm UTC](https://mangoh.discourse.group/t/cant-found-i2c-device-node-on-mangoh-yellow/9178 "2021-05-18T15:22:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![bruceke](https://avatars.discourse-cdn.com/v4/letter/b/0ea827/32.png) [@bruceke](https://mangoh.discourse.group/u/bruceke)\
**Post date:** [May 18, 2021, 3:22pm UTC](https://mangoh.discourse.group/t/cant-found-i2c-device-node-on-mangoh-yellow/9178/1 "2021-05-18T15:22:23Z")

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In the previous test, I remember that I could find several sets of i2c device nodes (e.g. i2c-5…i2c-8) established by i2c hub  
 ![image](https://us1.discourse-cdn.com/flex016/uploads/mangoh/original/2X/f/f5d79495f564d099a0461f4cc03b2036f34071e4.png)

But during the test recently, I couldn’t find i2c-5~i2c-8. Did I forget to perform any steps?  
 ![image](https://us1.discourse-cdn.com/flex016/uploads/mangoh/original/2X/d/d9328217767cf93bd61659e241dc280466bae68c.png)

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**Author:** ![bruceke](https://avatars.discourse-cdn.com/v4/letter/b/0ea827/32.png) [@bruceke](https://mangoh.discourse.group/u/bruceke)\
**Post date:** [May 25, 2021, 8:24am UTC](https://mangoh.discourse.group/t/cant-found-i2c-device-node-on-mangoh-yellow/9178/2 "2021-05-25T08:24:04Z")

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I have found a solution, need “mangoh\_yellow\_dev.ko”

 ![image](https://us1.discourse-cdn.com/flex016/uploads/mangoh/original/2X/8/8cf44f7dd8402a337dd531857cece40cb3afbadf.png)