# atServer linked to USB AT interface

**URL:** <https://forum.legato.io/t/atserver-linked-to-usb-at-interface/5331>\
**Category:** Uncategorized\
**Created:** [August 4, 2020, 11:37am UTC](https://forum.legato.io/t/atserver-linked-to-usb-at-interface/5331 "2020-08-04T11:37:42Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![shommersom](https://avatars.discourse-cdn.com/v4/letter/s/9fc29f/32.png) [@shommersom](https://forum.legato.io/u/shommersom)\
**Post date:** [August 4, 2020, 11:37am UTC](https://forum.legato.io/t/atserver-linked-to-usb-at-interface/5331/1 "2020-08-04T11:37:42Z")

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I’m using only the USB interface of the WP7702 and am looking to add my own AT commands to do some basic settings, e.g. connection address, etc. while keeping the normal AT commands available.

I’ve found the atServer API, however it requires you to link it to an interface, and I can’t find which to use if I want to add my own commands to that interface. Is this even possible?

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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 4, 2020, 1:06pm UTC](https://forum.legato.io/t/atserver-linked-to-usb-at-interface/5331/2 "2020-08-04T13:06:38Z")

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Does this help?

> **[AT cmds for Mirage Talon from MangoH Red board AT port](https://forum.mangoh.io/t/at-cmds-for-mirage-talon-from-mangoh-red-board-at-port/4803/17)**
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> You can use my attached application as reference. Steps: enter the following AT commands in AT command port: AT!ENTERCND=“A710” AT!USBCOMP=1,1,8014D at!RESET compile and download the application in console type the following: app...

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<div class="post-metadata">

**Author:** ![shommersom](https://avatars.discourse-cdn.com/v4/letter/s/9fc29f/32.png) [@shommersom](https://forum.legato.io/u/shommersom)\
**Post date:** [August 4, 2020, 1:25pm UTC](https://forum.legato.io/t/atserver-linked-to-usb-at-interface/5331/3 "2020-08-04T13:25:10Z")

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It looks like they’re using the raw uart over USB port and then bridging that to /dev/ttyAT, I think that would serve my purpose. I’m going to look into it a bit deeper tomorrow, but it looks promising.

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<div class="post-metadata">

**Author:** ![shommersom](https://avatars.discourse-cdn.com/v4/letter/s/9fc29f/32.png) [@shommersom](https://forum.legato.io/u/shommersom)\
**Post date:** [August 7, 2020, 7:40am UTC](https://forum.legato.io/t/atserver-linked-to-usb-at-interface/5331/4 "2020-08-07T07:40:59Z")

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It took a little longer than hoped but that got it working. I have run into a separate issue where if you use /dev/ttyAT for anything else (e.g. an atClient or microcom when SSH-d in everything breaks, but i suspect the solution to that is to just not do that.