TOTOLINK A650UA with RTL8811CU still not detected, why?

[Sayyid01]

Hi, I have usb wifi adapter TOTOLINK A650UA, and I was installing your driver, but my pc just detected my usb adapter like this

Bus 001 Device 024: ID 0bda:2006 Realtek Semiconductor Corp. The driver was successfully installed, but I don't know why my USB not detected as network interfaces at all.

here is the detail : from sudo dkms status rtl8821CU, 5.4.1, 5.3.0-40-generic, x86_64: installed

and from

sudo lshw -C network

-network
description: Wireless interface product: QCA9565 / AR9565 Wireless Network Adapter vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:01:00.0 logical name: wlp1s0 version: 01 serial: f0:03:8c:43:c9:ab width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless configuration: broadcast=yes driver=ath9k driverversion=5.3.0-40-generic firmware=N/A ip=192.168.44.7 latency=0 link=yes multicast=yes wireless=IEEE 802.11 resources: irq:37 memory:fea00000-fea7ffff memory:fea80000-fea8ffff -network description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:02:00.0 logical name: enp2s0 version: 10 serial: 2c:4d:54:2b:e3:80 capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 firmware=rtl8168g-3_0.0.1 04/23/13 latency=0 link=no multicast=yes port=MII resources: irq:35 ioport:e000(size=256) memory:fe904000-fe904fff memory:fe900000-fe903fff

[cuong95nddev]

HI @Sayyid01 I have same problem with my TOTOLINK A650UA. Did you make it work? Thanks.

[SatanicRaw]

@Sayyid01 @anhbinhvodanh

Hey. Try adding the ID of your adapters to the driver. Clone \ download repository, open file os_dep/linux/usb_intf.c find section

#ifdef CONFIG_RTL8821C
        / * === Realtek demoboard === * /
        {USB_DEVICE_AND_INTERFACE_INFO (USB_VENDER_ID_REALTEK, 0xb82b, 0xff, 0xff, 0xff), .driver_info = RTL8821C}, / * 8821CU * /
        {USB_DEVICE_AND_INTERFACE_INFO (USB_VENDER_ID_REALTEK, 0xb820, 0xff, 0xff, 0xff), .driver_info = RTL8821C}, / * 8821CU * /
        {USB_DEVICE_AND_INTERFACE_INFO (USB_VENDER_ID_REALTEK, 0xC821, 0xff, 0xff, 0xff), .driver_info = RTL8821C}, / * 8821CU * /
        {USB_DEVICE_AND_INTERFACE_INFO (USB_VENDER_ID_REALTEK, 0xC820, 0xff, 0xff, 0xff), .driver_info = RTL8821C}, / * 8821CU * /
        {USB_DEVICE_AND_INTERFACE_INFO (USB_VENDER_ID_REALTEK, 0xC82A, 0xff, 0xff, 0xff), .driver_info = RTL8821C}, / * 8821CU * /
        {USB_DEVICE_AND_INTERFACE_INFO (USB_VENDER_ID_REALTEK, 0xC82B, 0xff, 0xff, 0xff), .driver_info = RTL8821C}, / * 8821CU * /
        {USB_DEVICE_AND_INTERFACE_INFO (USB_VENDER_ID_REALTEK, 0xC811, 0xff, 0xff, 0xff), .driver_info = RTL8821C}, / * 8811CU * /
        {USB_DEVICE_AND_INTERFACE_INFO (USB_VENDER_ID_REALTEK, 0x8811, 0xff, 0xff, 0xff), .driver_info = RTL8821C}, / * 8811CU * /
        / * === Customer ID === * /
        {USB_DEVICE (0x2001, 0x331d), .driver_info = RTL8821C}, / * D-Link - DWA-171C * /
#endif

And before #endif add a line (in @Sayyid01 case, @anhbinhvodanh your adapter may have a different ID, you can see it through lsusb)

{USB_DEVICE_AND_INTERFACE_INFO (USB_VENDER_ID_REALTEK, 0x2006, 0xff, 0xff, 0xff), .driver_info = RTL8821C},

And then build the module

[cuong95nddev]

@SatanicRaw Yes, You are a genius. It works like a charm. Why I can see your answer soon before buying a new adapter :((.

Thank you so much.

[Sayyid01]

@SatanicRaw I have not tested it yet coz I using windows (for now 😄), but if it works on @anhbinhvodanh device, then it should work for me too.

Thanks for your help, and I will close this issue 😁.