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ot::Spinel::Encoder::WriteUint8() method
Encodes and writes a `uint8_t` value to current input frame. Before using this method `BeginFrame()` must be called to start and prepare a new input frame. Otherwise, this method does nothing and returns error status `OT_ERROR_INVALID_STATE`. If no buffer space is available, this method will discard and clear the current input frame and return the error status `OT_ERROR_NO_BUFS`.
Syntax
Return value
OT_ERROR_NONE Successfully added given value to the frame. OT_ERROR_NO_BUFS Insufficient buffer space available to add the value. OT_ERROR_INVALID_STATE `BeginFrame()` has not been called earlier to start the frame.