# USB-C Hub Not Recognized During Boot

**URL:** <https://forums.developer.nvidia.com/t/usb-c-hub-not-recognized-during-boot/201104>\
**Category:** Jetson AGX Xavier\
**Tags:** boot, usb\
**Created:** [January 20, 2022, 8:28am UTC](https://forums.developer.nvidia.com/t/usb-c-hub-not-recognized-during-boot/201104 "2022-01-20T08:28:31Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![prevdev](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@prevdev](https://forums.developer.nvidia.com/u/prevdev)\
**Post date:** [January 20, 2022, 8:28am UTC](https://forums.developer.nvidia.com/t/usb-c-hub-not-recognized-during-boot/201104/1 "2022-01-20T08:28:31Z")

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Hello,

I’m trying to attach a USB-C Hub (4 USB3.0 Type-A Ports + Ethernet) to our Jetson AGX Xavier Dev Kit using the front-facing USB-C port [J512]. The hub works fine when I plug it in after the system boots, however, if the system boots with the hub attached the hub is not recognized. If I do a quick unplug and replug, everything works fine. The hub also gets recognized after a reset signal that is originated from J508, but a soft reboot does not deliver the same result.

I did observe the same behaviour with two different hubs with two different Xavier’s, which were configured through the SDK Manager using JetPack 4.6. Is there a kernel option that I need to change to make the hub work when it’s attached during the boot process?

Thanks!

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**Author:** ![WayneWWW](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/waynewww/32/14043_2.png) [@WayneWWW](https://forums.developer.nvidia.com/u/WayneWWW)\
**Post date:** [January 21, 2022, 3:18am UTC](https://forums.developer.nvidia.com/t/usb-c-hub-not-recognized-during-boot/201104/3 "2022-01-21T03:18:27Z")

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I don’t think any kernel option is needed with devkit.

Could you share the dmesg when error happened?

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<div class="post-metadata">

**Author:** ![system](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/system/32/68080_2.png) [@system](https://forums.developer.nvidia.com/u/system)\
**Post date:** [February 23, 2022, 2:48am UTC](https://forums.developer.nvidia.com/t/usb-c-hub-not-recognized-during-boot/201104/5 "2022-02-23T02:48:04Z")

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