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Date: Mon, 15 Apr 2024 16:42:32 -0500
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Subject: Re: rtw88: rtw8822cu (LM842) on Raspi4 -> driver get stucked while
 sending data
To: Gabriel Tisan <gabriel.tisan@gmail.com>, Ping-Ke Shih <pkshih@realtek.com>
Cc: Nick Morrow <morrownr@gmail.com>,
 "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
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From: Larry Finger <Larry.Finger@lwfinger.net>
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On 4/15/24 3:53 AM, Gabriel Tisan wrote:
> I am a little bit confused.
> 
> My LM842 USB stick uses a RTL8822CU chipset(idVendor=0bda, idProduct=c82c)
> 
> The repo https://github.com/morrownr/8821cu-20210916
> allow to use for idVendor=0bda, idProduct=c82c both RTL8821C or RTL8822C driver.
> 
> Should I use then CONFIG_RTL8822C for my case ?

No, that would not work. The vendor drivers tend to have the USB device 
identifier section for every device in the family and pick then with the 
appropriate CONFIG command, but that does not mean that the rest of the driver 
would work with that CONFIG_RTL8822C.
> 
> To be sure, does anyone tested this driver in AP mode for 8822cu ?

I have no idea if AP mode works for the rtw8822bu. The vendor driver for this 
device is available at https://github.com/RinCat/RTL88x2BU-Linux-Driver or 
https://github.com/morrownr/88x2bu-20210702.

There is a problem with the wireless-next kernel and my rtw88 github repo in 
that device 0bda:c82c is listed as active for both rtw8822cu and rtw8821cu - 
certainly a mistake.

Larry