MIO 5152, how can I control GPIO under Ubuntu and ROS

4 Camera with USB3.0 are connected to the board. In order to synchronize these 4 camera, I’d like to use GPIO as trigger signal.
How can I control GPIO under Ubuntu/ROS?

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Dear Sir,
On MIO-5152,
Advantech created the SUSI API to simplify application development and provide exclusive services through Advantech’s embedded platform. The SUSI API provides a set of modularly designed functions and includes GPIO control functions. Customers can easily implement them to meet their application needs.

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Currently I bought the EPC-U3233 from Advantech and I want to use its GPIO pins in Ubuntu/ROS but the online resources are very limited, if not non-existent. Hope someone can assist me on this issue.

Dear Sir,

Please through the below link to get the SUSI user manual
In Chapter 3.7, it is mentioned about the GPIO function.

http://ess-wiki.advantech.com.tw/wiki/images/f/f0/SUSI4_User_Manual.pdf

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Dear Sir,

please go to below website to download SUSI API and follow SUSI user guide to control GPIO pin.

SUSI/ReleasePackage/x86/Standard/Ubuntu/EPC/EPC-U3233/ubuntu 20.04/x64 at master · ADVANTECH-Corp/SUSI · GitHub

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