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IDProjectCategoryView StatusDate SubmittedLast Update
0005361Kali LinuxFeature Requestspublic2019-03-22 20:352019-11-28 17:26
Reporterpeerj Assigned To 
PrioritynormalSeverityfeatureReproducibilityalways
Status closedResolutionsuspended 
Product Version2019.1 
Summary0005361: Add support for EZCast EZC-5200 Dualband USB Wifi-Adapter
Description

The EZCast EZC-5200 is a modern small-formfaktor dualband (2,4 GHz: 150 Mbps, 5,8 GHz: 433 Mbps) USB Wi-Fi adapter with onboard antenna, useful for discreetly surveying Wi-Fi networks. Additionally it includes a bluetooth 4.2 adapter.

The vendor:product code is 0bda:c820.

Inserting it in a RPi 3B+ USB port with a current kali doesn't yield a corresponding Wi-Fi interface.
The BT adapter appears.

Steps To Reproduce

Insert adapter into USB port. No new Wi-Fi interface appears.

Additional Information

cat /etc/os-release

PRETTY_NAME="Kali GNU/Linux Rolling"
NAME="Kali GNU/Linux"
ID=kali
VERSION="2019.1"
VERSION_ID="2019.1"

uname -a

Linux kali 4.14.93-Re4son-v8+ 0000001 SMP PREEMPT Thu Jan 24 03:28:29 UTC 2019 aarch64 GNU/Linux

dmesg

[...snip irrelevant portions...]
[541812.476909] usb 1-1.3: new high-speed USB device number 9 using dwc_otg
[541812.565970] usb 1-1.3: New USB device found, idVendor=0bda, idProduct=c820
[541812.565989] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[541812.565997] usb 1-1.3: Product: 802.11ac NIC
[541812.566004] usb 1-1.3: Manufacturer: Realtek
[541812.566011] usb 1-1.3: SerialNumber: 123456
[541812.775858] Bluetooth: hci1: rtl: examining hci_ver=08 hci_rev=000c lmp_ver=08 lmp_subver=8821
[541812.775876] Bluetooth: hci1: rtl: loading rtl_bt/rtl8821a_config.bin
[541812.776324] usbcore: registered new interface driver btusb
[541812.777009] bluetooth hci1: Direct firmware load for rtl_bt/rtl8821a_config.bin failed with error -2
[541812.777035] Bluetooth: hci1: rtl: loading rtl_bt/rtl8821a_fw.bin
[541812.781932] Bluetooth: hci1: rom_version status=0 version=1
[541812.781990] Bluetooth: cfg_sz 0, total size 17428
[541814.893877] Bluetooth: hci1 command 0xfc20 tx timeout
[541822.957914] Bluetooth: hci1: download fw command failed (-110)

lsusb

Bus 001 Device 009: ID 0bda:c820 Realtek Semiconductor Corp.

There is no wikidevi information to the product code as yet:
https://wikidevi.com/w/index.php?search=0bda%3Ac820&title=Special%3ASearch&profile=default&fulltext=1

The documentation delivered with the adapter (small leaflet) describes the chipset as "Realtek 8821CU".

This chipset is briefly mentioned here:
https://wikidevi.com/wiki/CC%26C_CM-8821CU

Vendor information about this product:
https://www.ezcast.com/search?q=EZC-5200

Quick start guide:
https://www.ezcast.com/res/EZCast-EZC-5200_Wi-Fi_Adapter_QSG.pdf

Driver download page (Windows, Mac):
https://www.ezcast.com/app/ezcast/ezc-5200

More info might be found via the vendor's search page:
https://www.ezcast.com/search?q=EZC-5200

Activities

peerj

peerj

2019-03-22 21:04

reporter   ~0010433

There seems to be a driver for this chipset: https://github.com/whitebatman2/rtl8821CU
Ddditional hints about it here, regarding compiling it successfully for RPi: https://ubuntuforums.org/showthread.php?t=2389602&page=3
peerj

peerj

2019-03-22 21:09

reporter   ~0010434

About the chip from it's manufacturer: https://www.realtek.com/en/products/communications-network-ics/item/rtl8821cu
peerj

peerj

2019-03-22 21:12

reporter   ~0010435

Another driver: https://github.com/MingxuZhang/rtl8821cu
forked from here: https://github.com/alteman/rtl8821cu
peerj

peerj

2019-03-22 21:38

reporter   ~0010436

usb-devices

T: Bus=01 Lev=02 Prnt=02 Port=02 Cnt=03 Dev#= 11 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=0bda ProdID=c820 Rev=02.00
S: Manufacturer=Realtek
S: Product=802.11ac NIC
S: SerialNumber=123456
C: #Ifs= 3 Cfg#= 1 Atr=a0 MxPwr=500mA
I: If#=0x0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I: If#=0x1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I: If#=0x2 Alt= 0 #EPs= 5 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
g0tmi1k

g0tmi1k

2019-11-28 17:26

administrator   ~0011427

Due to the age of the OS (Kali Moto [v1], Kali Safi [v2], Kali Rolling <= 2019.1), these legacy versions are no longer supported.
We will be closing this ticket due to inactivity.

Please could you see if you are able to replicate this issue with the latest version of Kali Linux - https://www.kali.org/downloads/)?

If you are still facing the same problem, feel free to re-open the ticket. If you choose to do this, could you provide more information to the issue you are facing, and also give information about your setup?
For more information, please read: https://kali.training/topic/filing-a-good-bug-report/

Issue History

Date Modified Username Field Change
2019-03-22 20:35 peerj New Issue
2019-03-22 21:04 peerj Note Added: 0010433
2019-03-22 21:09 peerj Note Added: 0010434
2019-03-22 21:12 peerj Note Added: 0010435
2019-03-22 21:38 peerj Note Added: 0010436
2019-11-28 17:26 g0tmi1k Status new => closed
2019-11-28 17:26 g0tmi1k Resolution open => suspended
2019-11-28 17:26 g0tmi1k Note Added: 0011427