How To Enable The 3.3V And 5V Power Supply On Expansion Connector - Eurotech DynaGate 10-12 Series User Manual

11 How to access interfaces under Linux
11.14 How to enable the 3.3V and 5V power supply on expansion
connector
3.3V and 5V are OFF by default and are controlled driving specific GPIO's.
To control the 3.3V, enter the following commands:
#turn on 3.3V
gpio_utility gpio71 1
#turn off 3.3V
gpio_utility gpio71 0
To control the 5V, enter the following commands:
#turn on 5V
gpio_utility gpio70 1
#turn off 5V
gpio_utility gpio70 0
NOTICE
While the default kernel DTB allows access to these power control pins, depending on the
device tree used, control of these power supplies is handled by the kernel and therefore it may
not be possible to control them from user space.
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DynaGATE 10-12 User manual Rev. 0-14