Hi, I am very curious about how v4l driver controls USB web camera's power, e.g will it force device to a D3 low power state. Could anyone show me which part of code is related with power management and is there any wiki guide on V4l's power? Thanks! Samuel -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html