How to use AC600 (Realteak RTL8192CU) wireless adaptor?

[rcrsn51]

I've tried with your recomment. I see there is a difference.

After running the usb_modeswitch command, run lsusb again and post the new id codes for the device. Did they change?

I own one of these 0bda:1a2b devices. I know how to get it working.

[nfkhanh]

Yes,Sofiya. I followed your guidness to install that driver. I changed the method of connection manager and loaded modul. I only saw rtl8821cu pci, but not usb. I tried some module around it in list, but it wasn't succeeded.
So thank you for your kindness.
We will try later.
Sure.

[nfkhanh]

1. Plugin TP-WN823N (support)

# usb_modeswitch -K -v 0bda -p 1a2b
Look for default devices ...
No devices in default mode found. Nothing to do. Bye!

# lsusb
Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 0080:a001 Assmann Electronic GmbH Digitus DA-71114 SATA
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 005: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
Bus 003 Device 008: ID 152d:2339 JMicron Technology Corp. / JMicron USA Technology Corp. JM20339 SATA Bridge
Bus 003 Device 006: ID 046d:0825 Logitech, Inc. Webcam C270
Bus 003 Device 004: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 003 Device 003: ID 17ef:608c Lenovo Lenovo Calliope USB Keyboard
Bus 003 Device 002: ID 413c:301a Dell Computer Corp. Dell MS116 USB Optical Mouse
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
#

2. Unplug TP-WN823N and plugin AC600

# usb_modeswitch -K -v 0bda -p 1a2b
Look for default devices ...
No devices in default mode found. Nothing to do. Bye!

# lsusb
Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 0080:a001 Assmann Electronic GmbH Digitus DA-71114 SATA
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 010: ID 0bda:c811 Realtek Semiconductor Corp. 802.11ac NIC
Bus 003 Device 008: ID 152d:2339 JMicron Technology Corp. / JMicron USA Technology Corp. JM20339 SATA Bridge
Bus 003 Device 006: ID 046d:0825 Logitech, Inc. Webcam C270
Bus 003 Device 004: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 003 Device 003: ID 17ef:608c Lenovo Lenovo Calliope USB Keyboard
Bus 003 Device 002: ID 413c:301a Dell Computer Corp. Dell MS116 USB Optical Mouse
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
#

3. Plugin both adaptors
# lsusb
Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 0080:a001 Assmann Electronic GmbH Digitus DA-71114 SATA
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 011: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
Bus 003 Device 008: ID 152d:2339 JMicron Technology Corp. / JMicron USA Technology Corp. JM20339 SATA Bridge
Bus 003 Device 013: ID 0bda:c811 Realtek Semiconductor Corp. Lenovo Calliope USB Keyboard
Bus 003 Device 006: ID 046d:0825 Logitech, Inc. Webcam C270
Bus 003 Device 004: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 003 Device 003: ID 17ef:608c Lenovo Lenovo Calliope USB Keyboard
Bus 003 Device 002: ID 413c:301a Dell Computer Corp. Dell MS116 USB Optical Mouse
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
#

[rcrsn51]

Bus 003 Device 010: ID 0bda:c811 Realtek Semiconductor Corp. 802.11ac NIC

So the device has successfully switched into a wifi adapter.

The next step is to get Sofiya's driver working. It recognizes the 0bda:c811 id code.
Run: depmod -a
Run: modinfo rtl8821cu
Run: modprobe rtl8821cu
Run: iwconfig