MCP423x_503
[MCP423x_503] = { .wipers = 2, .max_pos = 128, .kohms = 50, },
.data = &mcp4131_cfg[MCP423x_503] },
.data = &mcp4131_cfg[MCP423x_503] },
{ "mcp4231-503", MCP423x_503 },
{ "mcp4232-503", MCP423x_503 },