Hello, I'm working on an embedded system with a PHYTEC IMX31 board and run a patched kernel based on 2.6.22.6. I use the OTG USB interface to connect as client. This works fine using usb.c and the gadgetfs which is loaded as module above the arcotg_udc driver During operation I need to disconnect from the host and connect again afterwards. I try to do the disconnect by closing all file descriptors associated with the connection (ep_in, ep_out and ep0) and the close is always successful. In most cases this works fine. Sometimes, however, I can not reopen the ep0 file descriptor /dev/gadgetfs/arc_udc again. Instead of opening the device I get a -EBUSY. So I added some printk output to the inode.c and arcotg_udc.c and recompiled the modules to see what happens. It seems that in the error case the release function is not called even through the file descriptors for ep0, ep_in and ep_out where closed. Do you have any suggestions what goes wrong? -- 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
