mcp_set_bit
ret = mcp_set_bit(mcp, MCP_GPPU, pin, arg);
status = mcp_set_bit(mcp, MCP_IODIR, offset, true);
mcp_set_bit(mcp, MCP_GPINTEN, pos, false);
mcp_set_bit(mcp, MCP_GPINTEN, pos, true);
mcp_set_bit(mcp, MCP_INTCON, pos, false);
mcp_set_bit(mcp, MCP_INTCON, pos, false);
mcp_set_bit(mcp, MCP_INTCON, pos, false);
mcp_set_bit(mcp, MCP_INTCON, pos, true);
mcp_set_bit(mcp, MCP_DEFVAL, pos, false);
mcp_set_bit(mcp, MCP_INTCON, pos, true);
mcp_set_bit(mcp, MCP_DEFVAL, pos, true);