insmod g_ether.ko unknown symbol

[manbusongbo2007]

hello,

I'm try to use the g_ether.ko module in the kernel 4.1.15 but all the times I got problems like

# insmod g_ether.ko
g_ether: Unknown symbol usb_get_function_instance (err 0)
g_ether: Unknown symbol usb_string_ids_tab (err 0)
g_ether: Unknown symbol usb_get_function (err 0)
g_ether: Unknown symbol usb_composite_unregister (err 0)
g_ether: Unknown symbol gether_set_dev_addr (err 0)
g_ether: Unknown symbol usb_put_function (err 0)
g_ether: Unknown symbol rndis_borrow_net (err 0)
g_ether: Unknown symbol usb_add_function (err 0)
g_ether: Unknown symbol usb_composite_probe (err 0)
g_ether: Unknown symbol gether_register_netdev (err 0)
g_ether: Unknown symbol usb_composite_overwrite_options (err 0)
g_ether: Unknown symbol gether_set_qmult (err 0)
g_ether: Unknown symbol usb_otg_descriptor_alloc (err 0)
g_ether: Unknown symbol gether_set_gadget (err 0)
g_ether: Unknown symbol usb_put_function_instance (err 0)
g_ether: Unknown symbol gether_set_host_addr (err 0)
g_ether: Unknown symbol usb_otg_descriptor_init (err 0)
g_ether: Unknown symbol usb_add_config (err 0)
insmod: can't insert 'g_ether.ko': unknown symbol in module, or unknown parameter

Do you know why I got this symbols errors?

Thanks for all help.

[igorpadykov]

Hi ping

g_ether usage can be found in unit tests:

mxc_usb_test\test - imx-test - i.MX Driver Test Application Software 

kernel - What's the difference between insmod and modprobe? - Ask Ubuntu 

Best regards
igor
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[manbusongbo2007]

Hi igor

in the  mxc_usb_test,i found it is need a .ko file named :arcotg_udc.ko

but when i use cmd "make modules" ,it can not create this file。

how can i get this file？

thanks

best regards

ping

[manbusongbo2007]

Hi igor

I have use the cmd modprobe, found the depends  of g_ether.ko  and do like this:

insmod configfs.ko

insmod libcomposite.ko

insmod u_ether.ko

insmod usb_f_rnfs.ko

but it show only one error:

g_ether ci_hdrc.0: failed to start g_ether: -2

thanks for your help!