rock pro wifi module rtl8723au

[caiwang]

Issue by caiwang
Tuesday Mar 03, 2015 at 04:53 GMT
Originally opened as https://github.com/caiwang/ihostsrc/issues/43

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lwfinger/rtl8723au#43

Probably not. The version of the driver that supports nl80211 commands is from the current kernel, and that code is what constitutes the kernel-version branch of this repo. It requires kernel 3.15, but it may build with 3.14.

I have no plans to update the main branch, and the kernel-version will just get the latest code copied from the kernel source. As the driver is now in the kernel, and that version supports cfg80211, I see no purpose in maintaining an older version. If you cannot use a new kernel, but want the latest driver for the rtl8723au, you will need to do the backport yourself. The Backports project will show you some of the things that need to be done.

[caiwang]

Comment by caiwang
Wednesday Mar 04, 2015 at 03:25 GMT

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test on kernel 3.18 rock ubuntu image

Using iw to add a virtual wireless interface
http://superuser.com/questions/592296/using-iw-to-add-a-virtual-wireless-interface-getting-the-error-no-such-device

root@radxa:/# iw dev wlan0 interface add wlan2 type managed
command failed: Operation not supported (-95)
root@radxa:/# iw phy phy0 interface add wlan2 type managed
command failed: Operation not supported (-95)
root@radxa:/# iw phy phy0 interface add wlan2 type monitor
command failed: Operation not supported (-95)
root@radxa:/# iw phy phy0 interface add wlan2 type
Usage: iw [options] phy interface add type [mesh_id ] [4addr on|off] [flags *]

Add a new virtual interface with the given configuration.
Valid interface types are: managed, ibss, monitor, mesh, wds.

The flags are only used for monitor interfaces, valid flags are:
none: no special flags
fcsfail: show frames with FCS errors
control: show control frames
otherbss: show frames from other BSSes
cook: use cooked mode

The mesh_id is used only for mesh mode.

Options:
--debug enable netlink debugging
root@radxa:/#

root@radxa:/# iw --debug phy phy0 interface add wlan2 type monitor
-- Debug: Sent Message:
-------------------------- BEGIN NETLINK MESSAGE ---------------------------
[HEADER] 16 octets
.nlmsg_len = 48
.nlmsg_type = 20 <0x14>
.nlmsg_flags = 5 <REQUEST,ACK>
.nlmsg_seq = 1425439549
.nlmsg_pid = 1400
[PAYLOAD] 32 octets
07 00 00 00 08 00 01 00 00 00 00 00 0a 00 04 00 77 6c ................wl
61 6e 32 00 00 00 08 00 05 00 06 00 00 00 an2...........
--------------------------- END NETLINK MESSAGE ---------------------------
-- Debug: Received Message:
-------------------------- BEGIN NETLINK MESSAGE ---------------------------
[HEADER] 16 octets
.nlmsg_len = 68
.nlmsg_type = 2
.nlmsg_flags = 0 <>
.nlmsg_seq = 1425439549
.nlmsg_pid = 1400
[ERRORMSG] 20 octets
.error = -95 "Operation not supported"
[ORIGINAL MESSAGE] 16 octets
.nlmsg_len = 16
.nlmsg_type = 20 <0x14>
.nlmsg_flags = 5 <REQUEST,ACK>
.nlmsg_seq = 1425439549
.nlmsg_pid = 1400
--------------------------- END NETLINK MESSAGE ---------------------------
command failed: Operation not supported (-95)
root@radxa:/#

[caiwang]

Comment by caiwang
Wednesday Mar 04, 2015 at 03:33 GMT

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driver

root@radxa:/# lshw -C network
*-network:0 DISABLED
description: Wireless interface
physical id: 1
bus info: usb@2:1.1
logical name: wlan0
serial: 54:e4:bd:10:19:f5
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=rtl8723au ip=172.16.0.1 multicast=yes wireless=IEEE 802.11abg
*-network:1
description: Ethernet interface
physical id: 2
logical name: eth0
serial: b6:a4:d6:93:18:8f
size: 100Mbit/s
capacity: 100Mbit/s
capabilities: ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=rockchip_emac driverversion=1.0 duplex=full ip=192.168.1.136 link=yes port=MII speed=100Mbit/s
root@radxa:/#

driver location:

root@radxa:/lib/modules/3.18.0-rc5+/kernel/drivers/staging/rtl8723au# ls -l
total 9400
-rw-r--r-- 1 root root 9622765 Nov 28 12:24 r8723au.ko

installed version

lwfinger/rtl8188eu#101

If 'lsmod | grep 8188eu' returns "r8188eu", you have the kernel version. If it returns "8188eu", you have this one

root@radxa:/# lsmod | grep 8723au
r8723au 312010 0

[caiwang]

Comment by caiwang
Wednesday Mar 04, 2015 at 06:19 GMT

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compile lwfinger's version

lwfinger/rtl8188eu#99

The script that I use to build this driver for a Raspberry Pi (also ARM) is

export ARCH=arm
export CROSS_COMPILE=/home/finger/tools/arm-bcm2708/arm-bcm2708-linux-gnueabi/bin/arm-bcm2708-linux-gnueabi-
make KSRC=/home/finger/raspberry/

The cross compile symbol should point to the location of the cross-compiler, and KSRC should point to the location of the kernel source.

lwfinger/rtl8723au#43
git clone -b kernel_version https://github.com/lwfinger/rtl8723au.git

[caiwang]

Comment by caiwang
Wednesday Mar 04, 2015 at 08:34 GMT

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git clone -b kernel_version https://github.com/lwfinger/rtl8723au.git

export ARCH=arm
export CROSS_COMPILE=arm-linux-gnueabihf-

make KSRC=/home/radxa/k318/linux-next/