Hello, we are using an AT91RM9200 microcomputer as a usb-gadget. If our target is connected to a host and the usb-link is in use by e.g. g_ether, it goes into a kernel oops in some cases.
I have reconstructed the following case: - establish the usb-connection between the target and a windows host - do "modprobe g_ether" on the target - do "ifconfig usb0 192.168.1.2 up" on the target - test the connection with e.g. ping - do "rmmod g_ether" The system hangs with a kernel oops message. I have commented out the lines "local_irq_disable();" and "local_irq_enable();" in at91_udc.c, within the methods "usb_gadget_register_driver" and "usb_gadget_unregister_driver". Now it works for us (above case), but I am very interested in the reasons for having those lines. Can somebody describe me some details on that? Thx and Greetings, Jonatan Antoni ------------------------------------------------------- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
