안녕하세요. 다음 환경에서 N150L을 사용하여 HOST AP mode 동작을 해 보려고 하고 있습니다.

$ uname -r
5.4.0-72-generic

 우선 USB 동글 인식 및 드라이버 로드까지는 잘 되는 것을 확인하였습니다.

 그러나 station mode 동작에서부터 동작이 되지 않습니다.

$ sudo wpa_supplicant -B -c /etc/wpa_supplicant.conf -i wlx705dccfb03d4 -D wext
Successfully initialized wpa_supplicant
rfkill: Cannot get wiphy information
ioctl[SIOCSIWAP]: Operation not permitted
ioctl[SIOCSIWESSID]: Operation not permitted
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWENCODEEXT]: Invalid argument

 그리고 hostapd를 실행하면 다음과 같은 에러가 발생합니다.

$ sudo hostapd /etc/hostapd/hostapd.conf -B
Configuration file: /etc/hostapd/hostapd.conf
nl80211: Driver does not support authentication/association or connect commands
nl80211: deinit ifname=wlx705dccfb03d4 disabled_11b_rates=0
nl80211 driver initialization failed.
wlx705dccfb03d4: interface state UNINITIALIZED->DISABLED
wlx705dccfb03d4: AP-DISABLED
wlx705dccfb03d4: CTRL-EVENT-TERMINATING
hostapd_free_hapd_data: Interface wlx705dccfb03d4 wasn't started

 그래서 Linux 드라이버 링크를 참고하여 빌드를 시도해 보았지만 다음과 같이 에러가 발생합니다.

/rtl8188EUS_linux_v5.7.6.1_36803.20200508/os_dep/linux/os_intfs.c:1609:22: 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]
 1609 |  .ndo_select_queue = rtw_select_queue,
      |                      ^~~~~~~~~~~~~~~~
/rtl8188EUS_linux_v5.7.6.1_36803.20200508/os_dep/linux/os_intfs.c:1609:22: note: (near initialization for ‘rtw_netdev_ops.ndo_select_queue’)
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:271: /rtl8188EUS_linux_v5.7.6.1_36803.20200508/os_dep/linux/os_intfs.o] 오류 1
make[1]: *** [Makefile:1754: /rtl8188EUS_linux_v5.7.6.1_36803.20200508] 오류 2
make[1]: 디렉터리 '/usr/src/linux-headers-5.4.0-72-generic' 나감
make: *** [Makefile:2286: modules] 오류 2

 혹시 다른 드라이버를 사용해야 하는지요.

 Ubuntu 20.04에서 사용할 수 없는 동글인 것인지요.

 답변 부탁하겠습니다.