Odroid | WiFi Adapter 3 Won't Work as HotSpot

[stevejenkins]

Creating a bug report/issue:

Required Information:

• DietPi version | 6.12

• Distro version | stretch

• Kernel version | Linux DietPi 3.16.56+ Fix warning when running scp over openssh-server #1 SMP PREEMPT Wed Apr 18 16:59:34 CEST 2018 aarch64 GNU/Linux

• SBC device | Odroid C2 (aarch64)

• Power supply used | 5.2V 1.6A (Amazon Echo power adapter)

• SDcard used | SanDisk ultra

Additional Information (if applicable):

• Software title | WiFi HotSpot
• Was the software title installed freshly or updated/migrated: Fresh
• Can this issue be replicated on a fresh installation of DietPi: Yes
• dietpi-bugreport: f3724239-6ba3-47d3-bdc9-a2245528deb0

Steps to reproduce:

1. Connect ODROID WiFi Adapter 3 (Realtek RTL8188CUS)
2. Configure adapter via dietpi-config
3. Install WiFi HotSpot via dietpi-software

Expected behaviour:

WiFi SSID should broadcast

Actual behaviour:

WiFi SSID does not broadcast and wlan0 does not appear to have correct settings

Extra details:

root@DietPi:~# iwconfig wlan0
wlan0     IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Encryption key:off
          Power Management:off`

root@DietPi:~# cat /etc/hostapd/hostapd.conf
interface=wlan0
driver=rtl871xdrv
ssid=MobilePi
hw_mode=g
channel=9
macaddr_acl=0
auth_algs=1
ssid=MobilePi

root@DietPi:~# hostapd /etc/hostapd/hostapd.conf -dd
random: Trying to read entropy from /dev/random
Configuration file: /etc/hostapd/hostapd.conf
drv->ifindex=4
l2_sock_recv==l2_sock_xmit=0x0x48c3b0
ioctl[SIOCSIWMODE]: Invalid argument
Could not set interface to mode(3)!
Could not set interface to master mode!
rtl871xdrv driver initialization failed.
hostapd_interface_deinit_free(0x48b950)
hostapd_interface_deinit_free: num_bss=1 conf->num_bss=1
hostapd_interface_deinit(0x48b950)
wlan0: interface state UNINITIALIZED->DISABLED
hostapd_bss_deinit: deinit bss wlan0
wlan0: AP-DISABLED 
hostapd_cleanup(hapd=0x48cba0 (wlan0))
hostapd_free_hapd_data: Interface wlan0 wasn't started
hostapd_interface_deinit_free: driver=(nil) drv_priv=(nil) -> hapd_deinit
hostapd_interface_free(0x48b950)
hostapd_interface_free: free hapd 0x48cba0
hostapd_cleanup_iface(0x48b950)
hostapd_cleanup_iface_partial(0x48b950)
hostapd_cleanup_iface: free iface=0x48b950

[Fourdee]

Thanks for the report 👍

Confirmed bug:

Bus 001 Device 003: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wi reless Adapter [Realtek RTL8188CUS]

[stevejenkins]

Cool. In the meantime any word on chipsets that are known to work with ODROID + DietPi in Hotspot mode?

[stevejenkins]

FYI, tested a different adapter with same results.

Bus 001 Device 003: ID 148f:5370 Ralink Technology, Corp. RT5370 Wireless Adapter

[Fourdee]

@stevejenkins

FYI, tested a different adapter with same results.

Strange, it may be a kernel related issue. We'll need to do some investigations and further testing when possible.

[stevejenkins]

Sounds good. This isn't a mission-critical device for me. I built it as a mobile network speed tester (that's why I went ODROID instead of RPi to get a true GigE Ethernet adapter), and wanted to be able to connect to it wirelessly and run the tests from a tablet. So I'm happy to install any additional drivers, kernel versions, or alpha DietPi bits to get to the bottom of it. Thanks!

[MichaIng]

Ref: https://dietpi.com/phpbb/viewtopic.php?p=18984#p18984

[MichaIng]

I mark this issue as closed now. Basically it is known that not all WiFi adapters support hotspot mode and there is not much we can do about this.