I am using a customized Jetson AGX Xavier industrial board and
I am using L4T version 35.4.1.
The gpio status is as follows.
gpio_state_240802.txt (7.5 KB)
As with the existing gpio control method, I tried to use “echo 332 > export” in the /sys/class/gpio path, but the following error occurred and the export did not work.
“-sh: echo: write error: Device or resource busy”
How can I find out the status of the GPIO in the APP I am developing?
Hi insu8897,
gpio-332 (PEE.04 |power-key ) in hi IRQ ACTIVE LOW
This pin is HIGH currently and it is configured as Active Low.
The GPIO can be only requested/used by one driver/application at the same time.
You have to read the status from that driver, or remove the usage from that driver.
@KevinFFF
Thanks for your reply.
What driver is using this power key?
It is used by gpio_keys.c driver.
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