Dear Bill and all, I am facing an issue with ftdi_sio module and FTDI FT232-based devices. Now I am trying to understand where the origin is. By indirect evidences, I think that there is a small time gap between return of tcsetattr(fd_, TCSANOW, &new_termios) and actual settings application in the hardware. From the kernel sources I see that tcsetattr returns after ftdi_set_termios complete, which uses sync usb_control_msg calls. Unfortunately, I've not found data-sheet for FT232 describing USB protocol, so I would like to ask whether it is guaranteed that new settings are applied in hardware before ftdi_set_termios returns? -- With best regards, Matwey V. Kornilov http://blog.matwey.name xmpp://0x2207@xxxxxxxxx -- 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