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47.0 4.0 16.0 4.04 MB

Linux Driver for RTL8821CU, RTL8811CU USB Wi-Fi NIC

Makefile 0.36% Shell 0.01% C 97.18% C++ 2.00% Objective-C 0.46%

rtl8821cu rtl8811cu linux-drivers wi-fi

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rtl8821cu_driver_v5.8.1's Issues

can't build for armv7l

I wish to build this driver on Raspberry Pi 2B armv7l. There is no option in the Makefile.

Error when making the source code.

When I make the source code, there are some error occur.
./include/linux/slub_def.h:112:28: error: field ‘memcg_params’ has incomplete type 112 | struct memcg_cache_params memcg_params;
Any idea to solve this issue will be very much appreciated! :)

Stay safe and healthy.
BlueHeart0621

Error when compiling Driver with DKMS

Getting the following errors when compiling the driver. My setup:

uname -r
5.4.0-0.bpo.4-amd64

Tried the temporary workaround suggested here:

Just a temporary workaround, but you can still compile and install the driver if you add the following line to the top of the Makefile:
USER_EXTRA_CFLAGS=-Wno-error=incompatible-pointer-types

Make[2]:` *** [/usr/src/linux-headers-5.4.0-0.bpo.4-common/Makefile:1665: /var/lib/dkms/rtl8821CU/5.8.1/build] Error 2
make[1]: *** [/usr/src/linux-headers-5.4.0-0.bpo.4-common/Makefile:179: sub-make] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-5.4.0-0.bpo.4-amd64'
make: *** [Makefile:2336: modules] Error 2
/var/lib/dkms/rtl8821CU/5.8.1/build/os_dep/linux/os_intfs.c:1707:22: error: initialization of ‘u16 (*)(struct net_device *, struct sk_buff *, struct net_device *)’ {aka ‘short unsigned int (*)(struct net_device *, struct sk_buff *, struct net_device *)’} from incompatible pointer type ‘u16 (*)(struct net_device *, struct sk_buff *, struct net_device *, u16 (*)(struct net_device *, struct sk_buff *, struct net_device *))’ {aka ‘short unsigned int (*)(struct net_device *, struct sk_buff *, struct net_device *, short unsigned int (*)(struct net_device *, struct sk_buff *, struct net_device *))’} [-Werror=incompatible-pointer-types]
  .ndo_select_queue = rtw_select_queue,
                      ^~~~~~~~~~~~~~~~
/var/lib/dkms/rtl8821CU/5.8.1/build/os_dep/linux/os_intfs.c:1707:22: note: (near initialization for ‘rtw_netdev_ops.ndo_select_queue’)
/var/lib/dkms/rtl8821CU/5.8.1/build/os_dep/linux/os_intfs.c:3058:22: error: initialization of ‘u16 (*)(struct net_device *, struct sk_buff *, struct net_device *)’ {aka ‘short unsigned int (*)(struct net_device *, struct sk_buff *, struct net_device *)’} from incompatible pointer type ‘u16 (*)(struct net_device *, struct sk_buff *, struct net_device *, u16 (*)(struct net_device *, struct sk_buff *, struct net_device *))’ {aka ‘short unsigned int (*)(struct net_device *, struct sk_buff *, struct net_device *, short unsigned int (*)(struct net_device *, struct sk_buff *, struct net_device *))’} [-Werror=incompatible-pointer-types]
  .ndo_select_queue = rtw_select_queue,
                      ^~~~~~~~~~~~~~~~
/var/lib/dkms/rtl8821CU/5.8.1/build/os_dep/linux/os_intfs.c:3058:22: note: (near initialization for ‘rtw_netdev_vir_if_ops.ndo_select_queue’)
  CC [M]  /var/lib/dkms/rtl8821CU/5.8.1/build/os_dep/linux/usb_ops_linux.o
cc1: some warnings being treated as errors
make[3]: *** [/usr/src/linux-headers-5.4.0-0.bpo.4-common/scripts/Makefile.build:271: /var/lib/dkms/rtl8821CU/5.8.1/build/os_dep/linux/os_intfs.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/usr/src/linux-headers-5.4.0-0.bpo.4-common/Makefile:1665: /var/lib/dkms/rtl8821CU/5.8.1/build] Error 2
make[1]: *** [/usr/src/linux-headers-5.4.0-0.bpo.4-common/Makefile:179: sub-make] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-5.4.0-0.bpo.4-amd64'
make: *** [Makefile:2336: modules] Error 2

Any idea to relve this issue will be very much appreciated! :)

Stay safe and healthy.
Stanley

[Centos 8 - 4.18.0-305.12.1] Lots of compilation errors

4.18.0-305.12.1.el8_4.x86_64

In file included from /home/alexis/git/RTL8821CU_driver_v5.8.1/include/osdep_intf.h:105,
                 from /home/alexis/git/RTL8821CU_driver_v5.8.1/include/drv_types.h:101,
                 from /home/alexis/git/RTL8821CU_driver_v5.8.1/core/mesh/rtw_mesh.c:18:
/home/alexis/git/RTL8821CU_driver_v5.8.1/core/mesh/rtw_mesh.c: In function ‘rtw_chk_candidate_peer_notify’:
/home/alexis/git/RTL8821CU_driver_v5.8.1/include/../os_dep/linux/ioctl_cfg80211.h:408:86: error: too few arguments to function ‘cfg80211_notify_new_peer_candidate’
 #define rtw_cfg80211_notify_new_peer_candidate(wdev, addr, ie, ie_len, sig_dbm, gfp) cfg80211_notify_new_peer_candidat
(wdev_to_ndev(wdev), addr, ie, ie_len, gfp)

In file included from /home/alexis/git/RTL8821CU_driver_v5.8.1/include/osdep_intf.h:105,
                 from /home/alexis/git/RTL8821CU_driver_v5.8.1/include/drv_types.h:101,
                 from /home/alexis/git/RTL8821CU_driver_v5.8.1/core/mesh/rtw_mesh.c:18:
/home/alexis/git/RTL8821CU_driver_v5.8.1/core/mesh/rtw_mesh.c: In function ‘rtw_mesh_expire_peer_notify’:
/home/alexis/git/RTL8821CU_driver_v5.8.1/include/../os_dep/linux/ioctl_cfg80211.h:408:86: error: too few arguments to function ‘cfg80211_notify_new_peer_candidate’
 #define rtw_cfg80211_notify_new_peer_candidate(wdev, addr, ie, ie_len, sig_dbm, gfp) cfg80211_notify_new_peer_candidat
(wdev_to_ndev(wdev), addr, ie, ie_len, gfp)

In file included from ./include/linux/time.h:5,
                 from ./include/linux/stat.h:19,
                 from ./include/linux/module.h:10,
                 from /home/alexis/git/RTL8821CU_driver_v5.8.1/include/basic_types.h:76,
                 from /home/alexis/git/RTL8821CU_driver_v5.8.1/include/drv_types.h:26,
                 from /home/alexis/git/RTL8821CU_driver_v5.8.1/core/mesh/rtw_mesh.c:18:
./include/linux/slub_def.h: At top level:
./include/linux/rh_kabi.h:419:49: error: field ‘rh_reserved_memcg_params’ has incomplete type
 # define _RH_KABI_DEPRECATE(_type, _orig) _type rh_reserved_##_orig

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