On Thu, 2013-07-25 at 10:06 +0800, Yingchun Li wrote: > Ok, but the linux-cdc-acm.inf is provieded by us, so I think there should > be something I can learn. > Thanks anyway! And the driver binds and operates. The inf file works. The kernel driver is buggy. The driver comes from the vendor. As such crashes are also reported with other devices, we also know that the device isn't to blame. You need to complain to the vendor. Regards Oliver -- 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