Realtek RTL8821CU support (failed to download firmware)

[dsx724]

I have tried both the latest firmware from linux-firmware.git as well as the ones in this repo. This is with Linux 5.8.5. Attached is the dmesg.

[ 20.035922] rtwifi_usb 1-1:1.0: bLength=7 [ 20.050942] rtwifi_usb 1-1:1.0: bDescriptorType=5 [ 20.066608] rtwifi_usb 1-1:1.0: bEndpointAddress=81 [ 20.082423] rtwifi_usb 1-1:1.0: wMaxPacketSize=16 [ 20.097928] rtwifi_usb 1-1:1.0: bInterval=4 [ 20.112805] rtwifi_usb 1-1:1.0: USB: interrupt endpoint num 1 [ 20.129019] rtwifi_usb 1-1:1.0: [ 20.156110] rtwifi_usb 1-1:1.0: bLength=7 [ 20.170066] rtwifi_usb 1-1:1.0: bDescriptorType=5 [ 20.184657] rtwifi_usb 1-1:1.0: bEndpointAddress=2 [ 20.199089] rtwifi_usb 1-1:1.0: wMaxPacketSize=512 [ 20.213416] rtwifi_usb 1-1:1.0: bInterval=0 [ 20.226908] rtwifi_usb 1-1:1.0: USB: out endpoint num 2 [ 20.241374] rtwifi_usb 1-1:1.0: [ 20.266938] rtwifi_usb 1-1:1.0: bLength=7 [ 20.280362] rtwifi_usb 1-1:1.0: bDescriptorType=5 [ 20.294436] rtwifi_usb 1-1:1.0: bEndpointAddress=82 [ 20.308736] rtwifi_usb 1-1:1.0: wMaxPacketSize=512 [ 20.322962] rtwifi_usb 1-1:1.0: bInterval=0 [ 20.336621] rtwifi_usb 1-1:1.0: USB: dir in endpoint num 2 [ 20.351622] rtwifi_usb 1-1:1.0: USB_SPEED_HIGH [ 20.365474] rtwifi_usb 1-1:1.0: USB: bulkout_size: 512 [ 20.379928] rtwifi_usb 1-1:1.0: USB: TX Agg desc num: 3 [ 20.394435] rtwifi_usb 1-1:1.0: USB: bulkout_num: 1 [ 20.409390] rtwifi_usb 1-1:1.0: Firmware version 9.9.0, H2C version 15 [ 20.426425] rtwifi_usb 1-1:1.0: Firmware version 9.9.0, H2C version 15 [ 20.579872] rtwifi_usb 1-1:1.0: error beacon valid [ 20.594222] rtwifi_usb 1-1:1.0: failed to download rsvd page [ 20.609473] rtwifi_usb 1-1:1.0: failed to download firmware [ 20.628617] rtwifi_usb 1-1:1.0: failed to setup chip efuse info [ 20.643463] rtwifi_usb 1-1:1.0: failed to setup chip information

https://pastebin.com/nk7ZYr21

[dsx724]

Ahh this is a repeat of #8