[LUG] Getting a USB AC68 dongle to work in Mint 19.3

[Julian Hall <linux@xxxxxxxxxxxx>]

Hi All,

I wrongly thought that as this supposedly works on a Raspberry Pi it 
would work in a desktop installation of Linux Mint, as Raspbian and Mint 
are both Debian based. Wrong. Now I am trying to follow the advice here 
- https://askubuntu.com/questions/879187/asus-usb-ac68-0b051817-drivers 
and not having much luck. The make.log file mentioned in is

DKMS make.log for rtl8814AU-4.3.21 for kernel 4.15.0-91-generic (x86_64)
Thu  2 Apr 17:06:07 BST 2020
make ARCH=x86_64 CROSS_COMPILE= -C /lib/modules/4.15.0-91-generic/build 
M=/var/lib/dkms/rtl8814AU/4.3.21/build  modules
make[1]: Entering directory '/usr/src/linux-headers-4.15.0-91-generic'
  CC [M]  /var/lib/dkms/rtl8814AU/4.3.21/build/core/rtw_cmd.o
In file included from 
/var/lib/dkms/rtl8814AU/4.3.21/build/include/osdep_service.h:41,
                 from 
/var/lib/dkms/rtl8814AU/4.3.21/build/include/drv_types.h:32,
                 from 
/var/lib/dkms/rtl8814AU/4.3.21/build/core/rtw_cmd.c:22:
/var/lib/dkms/rtl8814AU/4.3.21/build/include/osdep_service_linux.h: In 
function ‘_init_timer’:
/var/lib/dkms/rtl8814AU/4.3.21/build/include/osdep_service_linux.h:273:8: 
error: ‘_timer’ {aka ‘struct timer_list’} has no member named ‘data’
  ptimer->data = (unsigned long)cntx;
        ^~
/var/lib/dkms/rtl8814AU/4.3.21/build/include/osdep_service_linux.h:274:2: 
error: implicit declaration of function ‘init_timer’; did you mean 
‘_init_timer’? [-Werror=implicit-function-declaration]
  init_timer(ptimer);
  ^~~~~~~~~~
  _init_timer
In file included from 
/var/lib/dkms/rtl8814AU/4.3.21/build/include/drv_types.h:32,
                 from 
/var/lib/dkms/rtl8814AU/4.3.21/build/core/rtw_cmd.c:22:
/var/lib/dkms/rtl8814AU/4.3.21/build/include/osdep_service.h: In 
function ‘thread_enter’:
/var/lib/dkms/rtl8814AU/4.3.21/build/include/osdep_service.h:343:2: 
error: implicit declaration of function ‘allow_signal’; did you mean 
‘do_signal’? [-Werror=implicit-function-declaration]
  allow_signal(SIGTERM);
  ^~~~~~~~~~~~
  do_signal
/var/lib/dkms/rtl8814AU/4.3.21/build/include/osdep_service.h: In 
function ‘flush_signals_thread’:
/var/lib/dkms/rtl8814AU/4.3.21/build/include/osdep_service.h:353:6: 
error: implicit declaration of function ‘signal_pending’; did you mean 
‘timer_pending’? [-Werror=implicit-function-declaration]
  if (signal_pending (current))
      ^~~~~~~~~~~~~~
      timer_pending
/var/lib/dkms/rtl8814AU/4.3.21/build/include/osdep_service.h:355:3: 
error: implicit declaration of function ‘flush_signals’; did you mean 
‘do_signal’? [-Werror=implicit-function-declaration]
   flush_signals(current);
   ^~~~~~~~~~~~~
   do_signal
cc1: some warnings being treated as errors
scripts/Makefile.build:330: recipe for target 
'/var/lib/dkms/rtl8814AU/4.3.21/build/core/rtw_cmd.o' failed
make[2]: *** [/var/lib/dkms/rtl8814AU/4.3.21/build/core/rtw_cmd.o] Error 1
Makefile:1577: recipe for target 
'_module_/var/lib/dkms/rtl8814AU/4.3.21/build' failed
make[1]: *** [_module_/var/lib/dkms/rtl8814AU/4.3.21/build] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.15.0-91-generic'
Makefile:1699: recipe for target 'modules' failed

make: *** [modules] Error 2


Also this just makes my head itch - https://github.com/gnab/rtl8812au - 
I know the answer is here but I have no idea what exactly to do.

Help please!

Kind regards,

Julian


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