I'm running linux kernel 2.6.38 on an embedded platform (Mini2440). On the platform I have a Silabs CP2102 USB to serial bridge IC and a USB host interface. I enumerate the USB host interface as a serial gadget. 1.) I have a problem reading data from the CP2102 UART on the platform but I can always write to it. The read will work for a few seconds and then stop working. 2.) On the serial gadget I can always read but write will work for a short while and the stop working. I connect my platform to a test PC via a serial cable, coming from the CP2102 on the platform, and a USB cable, coming from the host interface on the platform. The serial gadget enumerates on the test PC as a com port and I can communicate over it for a while. But if the interface is idle for a while I can only write to it with no response from the platform. For the CP2102 I can always receive data on the test PC but writing to the platform has no effect. What could this be and how can I resolve it. -- 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
