1. gpios,output-high,output-low
| gpios=<index GPIO_ACTIVE_HIGH> | gpios=<index GPIO_ACTIVE_LOW> | |
| active | output-high( write 1 to registers) | output-high(write 0 to registers) |
| inactive | output-low(write 0 to registers) | output-low(write 1 to registers) |
設備樹中屬性gpios與output-high, output-low的關系
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