# Usb and qrtr-ns kernel error message

**URL:** <https://forum.legato.io/t/usb-and-qrtr-ns-kernel-error-message/6575>\
**Category:** Uncategorized\
**Created:** [August 22, 2023, 7:55am UTC](https://forum.legato.io/t/usb-and-qrtr-ns-kernel-error-message/6575 "2023-08-22T07:55:22Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![MVAJGER](https://avatars.discourse-cdn.com/v4/letter/m/e0b2c6/32.png) [@MVAJGER](https://forum.legato.io/u/MVAJGER)\
**Post date:** [August 22, 2023, 7:55am UTC](https://forum.legato.io/t/usb-and-qrtr-ns-kernel-error-message/6575/1 "2023-08-22T07:55:22Z")

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I’m using wp7607 R17 in custom electronics.

grtr-ns:  
Starting qrtr-ns: [52.409106] qrtr: Modem QMI Readiness TX cmd:0x2 node[0x1]  
done  
qrtr-ns: send lookup result failed: No such device

msm-otg:  
[49.026928] msm\_otg 78d9000.usb: Could not get usb power\_supply

Does anyone know what’s the problem here?

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**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\
**Post date:** [August 22, 2023, 8:27am UTC](https://forum.legato.io/t/usb-and-qrtr-ns-kernel-error-message/6575/2 "2023-08-22T08:27:28Z")

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seems related to regression on usb otg:

> **[MangOH Yellow R17 OTG not working](https://forum.mangoh.io/t/mangoh-yellow-r17-otg-not-working/10322)**
>
> Hello, I am trying to get Webcams working in R17 on a mango yellow. I have the modules loaded in happily but now connecting the hardware is an issue. I have compiled R17 from scratch to include gstreamer and uvc drivers. When I use multiple...

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<div class="post-metadata">

**Author:** ![MVAJGER](https://avatars.discourse-cdn.com/v4/letter/m/e0b2c6/32.png) [@MVAJGER](https://forum.legato.io/u/MVAJGER)\
**Post date:** [August 22, 2023, 8:49am UTC](https://forum.legato.io/t/usb-and-qrtr-ns-kernel-error-message/6575/3 "2023-08-22T08:49:00Z")

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I see, that’s why no such device in qrtr-ns?

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<div class="post-metadata">

**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\
**Post date:** [August 22, 2023, 8:49am UTC](https://forum.legato.io/t/usb-and-qrtr-ns-kernel-error-message/6575/4 "2023-08-22T08:49:51Z")

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what is the exact problem you encountering?

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<div class="post-metadata">

**Author:** ![MVAJGER](https://avatars.discourse-cdn.com/v4/letter/m/e0b2c6/32.png) [@MVAJGER](https://forum.legato.io/u/MVAJGER)\
**Post date:** [August 22, 2023, 9:26am UTC](https://forum.legato.io/t/usb-and-qrtr-ns-kernel-error-message/6575/5 "2023-08-22T09:26:10Z")

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I do not know either 😃 Try to solve the errors from the kernel logs