GpioConfig (UORB message)
GPIO configuration
```c
GPIO configuration
uint64 timestamp # time since system start (microseconds) uint32 device_id # Device id
uint32 mask # Pin mask uint32 state # Initial pin output state
Configuration Mask
Bit 0-3: Direction: 0=Input, 1=Output
Bit 4-7: Input Config: 0=Floating, 1=PullUp, 2=PullDown
Bit 8-12: Output Config: 0=PushPull, 1=OpenDrain
Bit 13-31: Reserved
uint32 INPUT = 0 # 0x0000 uint32 OUTPUT = 1 # 0x0001 uint32 PULLUP = 16 # 0x0010 uint32 PULLDOWN = 32 # 0x0020 uint32 OPENDRAIN = 256 # 0x0100
uint32 INPUT_FLOATING = 0 # 0x0000 uint32 INPUT_PULLUP = 16 # 0x0010 uint32 INPUT_PULLDOWN = 32 # 0x0020
uint32 OUTPUT_PUSHPULL = 0 # 0x0000 uint32 OUTPUT_OPENDRAIN = 256 # 0x0100 uint32 OUTPUT_OPENDRAIN_PULLUP = 272 # 0x0110
uint32 config
```
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