Hi, Sorry if I missed any previous discussion on this topic. The msdn link [1] says that The host does not continuously poll the USB Control endpoint for input control messages. Upon placing a control message on its Control endpoint, the device must return a notification on the Communication Class interface's Interrupt IN endpoint, which is polled by the host whenever the device can return control messages. Which means the following transfer sequence from the host: - SETUP xfer: SET_ENCAPSULATED_COMMAND - INT xfer - SETUP xfer: GET_ENCAPSULATED_RESPONSE But in rndis_command() in rndis_host.c, the INT xfer between SET_ENCAPSULATED_COMMAND and GET_ENCAPSULATED_RESPONSE has a if condition check, so the INT xfer is not sent for some (most) rndis devices. Is there any reason why the INT xfer has this if condition? Thanks, -Bin. [1]: http://msdn.microsoft.com/en-us/library/aa447434.aspx -- 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
