hi all: we register acm_connect and acm_disconnect in acm_bind_config on acm->port. But I cannot find where and when we will call these 2 functions. from the functions content, they seem to let host know the device try to disconnect/connect. If my observation is correct, who is doing this job? -- Thanks for your help in advance. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html