Hi all, Does the usb subsystem impose any restrictions on mixing asynchronous (usb_submit_urb()) and synchronous (usb_bulk_msg(), et. al.) calls? For example, do the callbacks for asynchronously submitted urbs have to complete before a synchronous call is made? Or must locking be implemented to prevent a synchronous call from coinciding with an asynchronous call? I suspect at least the latter because usb_bulk_msg() started sometimes returning ETIMEDOUT when I stared calling usb_submit_urb() from a tasklet. Thanks, Mike ---- -- 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
