Failed to export GPIO from sysfs

[赵东浩]

I want to control GPIO F1, F2 and F3, but I can't export from sysfs. When I execute echo 333 > export, the following error is reported:
root at xxxx:/sys/class/gpio# echo 333 > export 
[  120.060018] aspeed-g4-pinctrl 1e6e2000.syscon:pinctrl: request() failed for pin 41
[  120.067642] aspeed-g4-pinctrl 1e6e2000.syscon:pinctrl: pin-41 (1e780000.gpio:333) status -1
-sh: echo: write error: Operation not permitted
root at xxxx:/sys/class/gpio# echo 334 > export 
[  136.689801] aspeed-g4-pinctrl 1e6e2000.syscon:pinctrl: request() failed for pin 42
[  136.697423] aspeed-g4-pinctrl 1e6e2000.syscon:pinctrl: pin-42 (1e780000.gpio:334) status -1
-sh: echo: write error: Operation not permitted
root at xxxx:/sys/class/gpio# echo 335 > export 
[  140.289975] aspeed-g4-pinctrl 1e6e2000.syscon:pinctrl: request() failed for pin 43
[  140.297601] aspeed-g4-pinctrl 1e6e2000.syscon:pinctrl: pin-43 (1e780000.gpio:335) status -1
-sh: echo: write error: Operation not permitted
Since these gpios are used to control remote switch machines, no other devices occupy these gpios. I wonder if there are any places where gpios need to be set?
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Hao
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z1908144712 at 163.com
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