我对 raspbian 的 insmod 有问题。
一切就绪，但最后，当我尝试调用 insmod 失败时。
错误是：
dmesg | tail
[ 2959.644893] ubq_core: Unknown symbol usb_ep_free_request (err -2)
[ 2959.644959] ubq_core: Unknown symbol usb_ep_dequeue (err -2)
[ 2959.645053] ubq_core: Unknown symbol usb_ep_autoconfig_reset (err -2)
[ 2959.645098] ubq_core: Unknown symbol usb_ep_alloc_request (err -2)
[ 2959.645141] ubq_core: Unknown symbol usb_gadget_unregister_driver (err -2)
[ 2959.645184] ubq_core: Unknown symbol usb_ep_set_halt (err -2)
[ 2959.645233] ubq_core: Unknown symbol usb_ep_autoconfig_release (err -2)
[ 2959.645288] ubq_core: Unknown symbol usb_ep_queue (err -2)
[ 2959.645428] ubq_core: Unknown symbol usb_ep_enable (err -2)
[ 2959.645475] ubq_core: Unknown symbol usb_ep_disable (err -2)
你能帮我吗？