Hello all, I have the following situation: - Device 1 (SAM9G45, Linux kernel 3.2.30 with BusyBox): USB host device - Device 2 (OMAP4460, Android 4.0.3): USB slave device These devices are connected through USB1.1 (ohci) interface. I would like to use the ethernet protocol (CDC ECM) on top of the USB connection. Therefore I enable the usbnet kernel driver on the host side and extended the Android Gadget Driver on the slave side with CDC ECM. I can assign IP addresses to the usb0 interface and it is possible to ping between the devices if I use a small (22 or lower) packet size. This can be accomplish by using 'ping -s <ip-address>'. If I use a packet size of 23 or higher then I get the following USB error: >> at91_ohci: urb c7010da0 path 1.1 eplin 83160000 cc 8 --> status -75 The status -75 means a Data Overrun (OVERFLOW) error. So I think if the ethernet packet cannot be packed in a single USB packet something goes wrong. I get this error on Device 1 (host-side) when it is receiving the reply from Device 2. Does anyone have an idea what causes this Data Overrun? Thank you 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
