Rtl8812au and OpenWrt

For Developers
1

Hi all,

since OpenWRT is lacking a driver for rtl8812au I am trying to integrate
such a driver I got from https://github.com/abperiasamy/rtl8812AU_8821AU_linux

Hardware: Mirabox (mvebu platform)
OpenWRT:  https://www.github.com/openwrt/openwrt
/etc/os-release 
NAME="OpenWrt"
VERSION="SNAPSHOT"
ID="openwrt"
ID_LIKE="lede openwrt"
PRETTY_NAME="OpenWrt SNAPSHOT"
VERSION_ID="snapshot"
HOME_URL="http://lede-project.org/"
BUG_URL="http://bugs.lede-project.org/"
SUPPORT_URL="http://forum.openwrt.org/"
BUILD_ID="r0-55f3731"
LEDE_BOARD="mvebu/cortexa9"
LEDE_ARCH="arm_cortex-a9_vfpv3"
LEDE_TAINTS="busybox"
LEDE_DEVICE_MANUFACTURER="OpenWrt"
LEDE_DEVICE_MANUFACTURER_URL="http://lede-project.org/"
LEDE_DEVICE_PRODUCT="Generic"
LEDE_DEVICE_REVISION="v0"
LEDE_RELEASE="OpenWrt SNAPSHOT r0-55f3731"

I managed to build it, but whan insmodding the module, I am getting
the following:

// ----------------------------------------------------------------------------------------------------------------
[83441.360649] WARNING: CPU: 0 PID: 3536 at backports-2017-11-01/net/wireless/core.c:730 wiphy_register+0x270/0x8dc [cfg80211]
[83441.371863] Modules linked in: rtl8812au(+) pppoe ppp_async pppox ppp_generic nf_conntrack_ipv6 iptable_nat ipt_REJECT ipt_MASQUERADE xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_FLOWOFFLOAD xt_CT slhc nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_conntrack_ipv4 nf_nat_ipv4 nf_nat nf_log_ipv4 nf_flow_table_hw nf_flow_table nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_mangle iptable_filter ip_tables crc_ccitt mwlwifi mac80211 cfg80211 compat ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables x_tables gpio_button_hotplug [last unloaded: rtl8812au]
[83441.434914] CPU: 0 PID: 3536 Comm: insmod Tainted: G        W       4.14.43 #0
[83441.442171] Hardware name: Marvell Armada 370/XP (Device Tree)
[83441.448062] [<c010f5c0>] (unwind_backtrace) from [<c010b2c8>] (show_stack+0x10/0x14)
[83441.455853] [<c010b2c8>] (show_stack) from [<c06183a8>] (dump_stack+0x88/0x9c)
[83441.463117] [<c06183a8>] (dump_stack) from [<c0121e00>] (__warn+0xe4/0x100)
[83441.470115] [<c0121e00>] (__warn) from [<c0121ecc>] (warn_slowpath_null+0x20/0x28)
[83441.477776] [<c0121ecc>] (warn_slowpath_null) from [<bf053b98>] (wiphy_register+0x270/0x8dc [cfg80211])
[83441.487674] [<bf053b98>] (wiphy_register [cfg80211]) from [<bfcf5bb4>] (rtw_wdev_alloc+0x110/0x248 [rtl8812au])
[83441.498658] [<bfcf5bb4>] (rtw_wdev_alloc [rtl8812au]) from [<bfcdd228>] (rtw_usb_if1_init+0xbc/0x1e8 [rtl8812au])
[83441.509803] [<bfcdd228>] (rtw_usb_if1_init [rtl8812au]) from [<bfcdd6a8>] (rtw_drv_init+0x354/0x424 [rtl8812au])
[83441.520458] [<bfcdd6a8>] (rtw_drv_init [rtl8812au]) from [<c048ddcc>] (usb_probe_interface+0x164/0x1b4)
[83441.529909] [<c048ddcc>] (usb_probe_interface) from [<c03d8458>] (really_probe+0x11c/0x27c)
[83441.538301] [<c03d8458>] (really_probe) from [<c03d8644>] (__driver_attach+0x8c/0xb0)
[83441.546170] [<c03d8644>] (__driver_attach) from [<c03d6be4>] (bus_for_each_dev+0x4c/0xa0)
[83441.554387] [<c03d6be4>] (bus_for_each_dev) from [<c03d7b60>] (bus_add_driver+0xe8/0x200)
[83441.562605] [<c03d7b60>] (bus_add_driver) from [<c03d8d88>] (driver_register+0xa8/0xe4)
[83441.570649] [<c03d8d88>] (driver_register) from [<c048d8e4>] (usb_register_driver+0x70/0x128)
[83441.579619] [<c048d8e4>] (usb_register_driver) from [<bfdcf0ac>] (init_module+0xac/0x1000 [rtl8812au])
[83441.589394] [<bfdcf0ac>] (init_module [rtl8812au]) from [<c0101afc>] (do_one_initcall+0xc0/0x184)
[83441.598325] [<c0101afc>] (do_one_initcall) from [<c0188484>] (do_init_module+0x60/0x1dc)
[83441.606457] [<c0188484>] (do_init_module) from [<c01878cc>] (load_module+0x1d48/0x20f0)
[83441.614500] [<c01878cc>] (load_module) from [<c0187da0>] (SyS_init_module+0x12c/0x164)
[83441.622460] [<c0187da0>] (SyS_init_module) from [<c0107940>] (ret_fast_syscall+0x0/0x54)
[83441.630655] ---[ end trace 17747186de764f45 ]---
[83441.635298] ------------[ cut here ]------------
[83441.640048] WARNING: CPU: 0 PID: 3536 at backports-2017-11-01/net/wireless/core.c:789 wiphy_register+0x594/0x8dc [cfg80211]
[83441.651259] Modules linked in: rtl8812au(+) pppoe ppp_async pppox ppp_generic nf_conntrack_ipv6 iptable_nat ipt_REJECT ipt_MASQUERADE xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_FLOWOFFLOAD xt_CT slhc nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_conntrack_ipv4 nf_nat_ipv4 nf_nat nf_log_ipv4 nf_flow_table_hw nf_flow_table nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_mangle iptable_filter ip_tables crc_ccitt mwlwifi mac80211 cfg80211 compat ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables x_tables gpio_button_hotplug [last unloaded: rtl8812au]
[83441.714303] CPU: 0 PID: 3536 Comm: insmod Tainted: G        W       4.14.43 #0
[83441.721558] Hardware name: Marvell Armada 370/XP (Device Tree)
[83441.727445] [<c010f5c0>] (unwind_backtrace) from [<c010b2c8>] (show_stack+0x10/0x14)
[83441.735235] [<c010b2c8>] (show_stack) from [<c06183a8>] (dump_stack+0x88/0x9c)
[83441.742498] [<c06183a8>] (dump_stack) from [<c0121e00>] (__warn+0xe4/0x100)
[83441.749495] [<c0121e00>] (__warn) from [<c0121ecc>] (warn_slowpath_null+0x20/0x28)
[83441.757152] [<c0121ecc>] (warn_slowpath_null) from [<bf053ebc>] (wiphy_register+0x594/0x8dc [cfg80211])
[83441.767051] [<bf053ebc>] (wiphy_register [cfg80211]) from [<bfcf5bb4>] (rtw_wdev_alloc+0x110/0x248 [rtl8812au])
[83441.778023] [<bfcf5bb4>] (rtw_wdev_alloc [rtl8812au]) from [<bfcdd228>] (rtw_usb_if1_init+0xbc/0x1e8 [rtl8812au])
[83441.789168] [<bfcdd228>] (rtw_usb_if1_init [rtl8812au]) from [<bfcdd6a8>] (rtw_drv_init+0x354/0x424 [rtl8812au])
[83441.799822] [<bfcdd6a8>] (rtw_drv_init [rtl8812au]) from [<c048ddcc>] (usb_probe_interface+0x164/0x1b4)
[83441.809273] [<c048ddcc>] (usb_probe_interface) from [<c03d8458>] (really_probe+0x11c/0x27c)
[83441.817666] [<c03d8458>] (really_probe) from [<c03d8644>] (__driver_attach+0x8c/0xb0)
[83441.825534] [<c03d8644>] (__driver_attach) from [<c03d6be4>] (bus_for_each_dev+0x4c/0xa0)
[83441.833750] [<c03d6be4>] (bus_for_each_dev) from [<c03d7b60>] (bus_add_driver+0xe8/0x200)
[83441.841969] [<c03d7b60>] (bus_add_driver) from [<c03d8d88>] (driver_register+0xa8/0xe4)
[83441.850011] [<c03d8d88>] (driver_register) from [<c048d8e4>] (usb_register_driver+0x70/0x128)
[83441.858981] [<c048d8e4>] (usb_register_driver) from [<bfdcf0ac>] (init_module+0xac/0x1000 [rtl8812au])
[83441.868743] [<bfdcf0ac>] (init_module [rtl8812au]) from [<c0101afc>] (do_one_initcall+0xc0/0x184)
[83441.877673] [<c0101afc>] (do_one_initcall) from [<c0188484>] (do_init_module+0x60/0x1dc)
[83441.885804] [<c0188484>] (do_init_module) from [<c01878cc>] (load_module+0x1d48/0x20f0)
[83441.893848] [<c01878cc>] (load_module) from [<c0187da0>] (SyS_init_module+0x12c/0x164)
[83441.901808] [<c0187da0>] (SyS_init_module) from [<c0107940>] (ret_fast_syscall+0x0/0x54)
[83441.909985] ---[ end trace 17747186de764f46 ]---
[83441.914627] RTL871X: Couldn't register wiphy device

// ----------------------------------------------------------------------------------------------------------------

Any hints I could follow to make the thing working?

I haven been able to build and install the same driver in an Arch Linux environment on the same hardware.
On that platform, WiFi works.

Thanks in advance!

2

Jax128, I'm working on the same thing and using the abperiasamy repo as you are. Maybe we can collaborate.

3

@castillofrancodamian may be interested, he needs the same driver. He may be willing to test.

See: RTL8812AU in OpenWrt

and: RTL8812AU without drivers

4

Hi Dears,

I’ve acquired a cheap USB 1200ac WiFi dongle lsusb says vendor Realtek product rtl8812au. I have a gl-inet ar150 to go with it. Absolutely willing to contribute to testing it in on openwrt. I am new to Linux and embedded Linux and openwrt but if you need people to test the driver on different devices feel free to sign me in. Bests P.

5

I noticed this wifi driver has been added to the sources,trying to make it work on a raspberry pi, on STA mode it scans and when it connects crash, on AP mode also crash ,my usb wfi divice is a trend tew-805ub

[73239.508164] usb 1-1.3: new high-speed USB device number 6 using dwc_otg
[73239.638971] usb 1-1.3: New USB device found, idVendor=20f4, idProduct=805b
[73239.647337] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[73239.656238] usb 1-1.3: Product: AC1200 Dual Band USB Adapter
[73239.663501] usb 1-1.3: Manufacturer: Realtek
[73239.669347] usb 1-1.3: SerialNumber: 123456
[73239.963960] RTL871X: rtw_ndev_init(wlan1)
[73240.983732] asix 1-1.1.3:1.0 eth1: link up, 100Mbps, full-duplex, lpa 0xC1E1
[73273.134916] br-lan: port 1(eth0) entered blocking state
[73273.142087] br-lan: port 1(eth0) entered forwarding state
[73371.218565] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[73468.449389] RTL871X: rtw_ndev_uninit(wlan1)

Crash log: https://pastebin.com/Ttz366JK

6

Could this FreeBSD driver be of any help ?

7

@Pipo Driver is in OpenWrt ,it can be installed if you are running the snapshots,in the description say for " Realtek 8812AU devices comfast 912ac, etc" I don't have that specific usb wifi adapter model to check

Screenshot_rtl8812

9

Evidently it failed to work on some of our internal regression tests too, but I
have not had time to investigate why. It is low-priority at the moment as I have
other higher priority things to work on. If someone figures it out, please send
me a patch.

Thanks,
Ben

1 Like
10

The driver is not working properly.

See: https://github.com/openwrt/openwrt/issues/8870