Hi all: 1. if we don't call any unlink functions, such as usb_unlink_urb, the state of qh will keep QH_STATE_LINKED and linked after ehci->async. 2. if #1 is true, after calling usb_control_msg, the qh of ep0 will leave in ehci->async, right? Since I don't see any complete function of usb_control_msg try to unlink qh, except we call usb_ep0_reinit. The complete of usb_control_msg just wake up the sleeping task for finishing. -- 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
