How to enable the mesh point mode?

[huster-jingwen]

I enabled CONFIG_AP_MODE and CONFIG_RTW_MESH in makefile, made and made install this driver for RTL8812AU.
For RTL8812AU network interface card, I set as follows:

root@hjw-virtual-machine:/home/hjw/Documents/rtl8812au-5.6.4.2# iw dev wlan0 interface add mesh0 type mp
command failed: Operation not supported (-95)
root@hjw-virtual-machine:/home/hjw/Documents/rtl8812au-5.6.4.2# iw dev wlan0 set type mp
root@hjw-virtual-machine:/home/hjw/Documents/rtl8812au-5.6.4.2# iw wlan0 info
Interface wlan0
	ifindex 6
	wdev 0x200000001
	addr 54:c9:ff:02:de:bf
	type mesh point
	wiphy 2
	channel 1 (2412 MHz), width: 20 MHz, center1: 2412 MHz
root@hjw-virtual-machine:/home/hjw/Documents/rtl8812au-5.6.4.2# ifconfig wlan0 192.168.13.10 up
root@hjw-virtual-machine:/home/hjw/Documents/rtl8812au-5.6.4.2# iw dev wlan0 mesh join mymesh freq 2437
root@hjw-virtual-machine:/home/hjw/Documents/rtl8812au-5.6.4.2# iw wlan0 info
Interface wlan0
	ifindex 6
	wdev 0x200000001
	addr 54:c9:ff:02:de:bf
	type mesh point
	wiphy 2
	channel 149 (5745 MHz), width: 20 MHz, center1: 5745 MHz
root@hjw-virtual-machine:/home/hjw/Documents/rtl8812au-5.6.4.2# iw wlan0 info
Interface wlan0
	ifindex 6
	wdev 0x200000001
	addr 54:c9:ff:02:de:bf
	type mesh point
	wiphy 2
	channel 6 (2437 MHz), width: 20 MHz, center1: 2437 MHz

For another mesh network interface card, I set like this:

root@hjw-virtual-machine:/home/hjw# iw dev wlan1 set type mp
root@hjw-virtual-machine:/home/hjw# iw wlan1 info
Interface wlan1
	ifindex 7
	wdev 0x300000001
	addr e0:b9:4d:11:01:d8
	type mesh point
	wiphy 3
root@hjw-virtual-machine:/home/hjw# ifconfig wlan1 192.168.13.20 up
root@hjw-virtual-machine:/home/hjw# iw wlan1 info
Interface wlan1
	ifindex 7
	wdev 0x300000001
	addr e0:b9:4d:11:01:d8
	type mesh point
	wiphy 3
root@hjw-virtual-machine:/home/hjw# iw dev wlan1 mesh join mymesh freq 2437

And I get the result:

root@hjw-virtual-machine:/home/hjw# iw dev wlan1 station dump
Station 54:c9:ff:02:de:bf (on wlan1)
	inactive time:	1120 ms
	rx bytes:	674
	rx packets:	20
	tx bytes:	1374
	tx packets:	21
	tx retries:	0
	tx failed:	0
	signal:  	-44 dBm
	signal avg:	-41 dBm
	Toffset:	246218065 us
	tx bitrate:	1.0 MBit/s
	mesh llid:	0
	mesh plid:	0
	mesh plink:	LISTEN
	mesh local PS mode:	UNKNOWN
	mesh peer PS mode:	UNKNOWN
	mesh non-peer PS mode:	ACTIVE
	authorized:	yes
	authenticated:	yes
	preamble:	long
	WMM/WME:	yes
	MFP:		no
	TDLS peer:	no

However, I can' t get similar result at RTL8812AU network interface card, like this:

root@hjw-virtual-machine:/home/hjw/Documents/rtl8812au-5.6.4.2# iw dev wlan0 station dump
root@hjw-virtual-machine:/home/hjw/Documents/rtl8812au-5.6.4.2# iw dev wlan0 station dump
root@hjw-virtual-machine:/home/hjw/Documents/rtl8812au-5.6.4.2# iw dev wlan0 station dump
root@hjw-virtual-machine:/home/hjw/Documents/rtl8812au-5.6.4.2# iw wlan0 info
Interface wlan0
	ifindex 6
	wdev 0x200000001
	addr 54:c9:ff:02:de:bf
	type mesh point
	wiphy 2
	channel 6 (2437 MHz), width: 20 MHz, center1: 2437 MHz
root@hjw-virtual-machine:/home/hjw/Documents/rtl8812au-5.6.4.2# iwconfig wlan0
wlan0     IEEE 802.11bg  ESSID:""  Nickname:"<WIFI@REALTEK>"
          Mode:Auto  Frequency:2.437 GHz  Access Point: 54:C9:FF:02:DE:BF   
          Bit Rate:54 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

And I can't ping another network interface card successfully.
So, how can I enable the mesh point mode?