# usb functions

**URL:** <https://psychtoolbox.discourse.group/t/usb-functions/704>\
**Category:** Uncategorized\
**Created:** [January 20, 2005, 7:37pm UTC](https://psychtoolbox.discourse.group/t/usb-functions/704 "2005-01-20T19:37:28Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Allen\_Ingling](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Allen\_Ingling](https://psychtoolbox.discourse.group/u/Allen_Ingling)\
**Post date:** [January 20, 2005, 7:37pm UTC](https://psychtoolbox.discourse.group/t/usb-functions/704/1 "2005-01-20T19:37:28Z")

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Greetings,  
I am currently employed by a laboratory conducting research in visual  
attention. We would like to connect an eye-tracker to a computer such that  
eye position can be correlated to the position of objects on a screen.  
  
Is there a function in any version of psychtoolbox that enables matlab to  
locate and/or recognize a device plugged into a usb port(mac or pc)? Any  
information on this subject would be greatly appreciated.  
  
thank you very much,  
charlie king