> -----Original Message----- > From: petter@xxxxxxxxxx <petter@xxxxxxxxxx> > Sent: Friday, June 23, 2023 2:35 PM > To: Ping-Ke Shih <pkshih@xxxxxxxxxxx> > Cc: Larry.Finger@xxxxxxxxxxxx; kernel@xxxxxxxxxxxxxx; kvalo@xxxxxxxxxx; linux-wireless@xxxxxxxxxxxxxxx; > linux@xxxxxxxxxxxxx; morrownr@xxxxxxxxx; petter.mabacker@xxxxxxx; petter@xxxxxxxxxx; > s.hauer@xxxxxxxxxxxxxx > Subject: RE: Linux mainline support for RTL8811AU/RTL8821AU > > > >> -----Original Message----- > >> From: Larry Finger <larry.finger@xxxxxxxxx> On Behalf Of Larry Finger > >> Sent: Wednesday, June 14, 2023 2:29 AM > >> To: petter@xxxxxxxxxx; linux-wireless@xxxxxxxxxxxxxxx > >> Cc: Ping-Ke Shih <pkshih@xxxxxxxxxxx>; morrownr@xxxxxxxxx; kernel@xxxxxxxxxxxxxx; kvalo@xxxxxxxxxx; > >> linux@xxxxxxxxxxxxx; petter.mabacker@xxxxxxx; s.hauer@xxxxxxxxxxxxxx > >> Subject: Re: Linux mainline support for RTL8811AU/RTL8821AU > >> > >> On 6/13/23 03:09, petter@xxxxxxxxxx wrote: > >> > Hi, > >> > > >> > I'm investigating a wifi dongle (LM808) that is based on the RTL8811AU chipset. > >> > > >> > $ lsusb > >> > .. > >> > Bus 003 Device 066: ID 0bda:a811 Realtek Semiconductor Corp. RTL8811AU 802.11a/b/g/n/ac WLAN Adapter > >> > .. > >> > > >> > I cannot find any driver support in mainline for that chipset (8811cu/8821cu, seems to exists). Just > curious > >> if anyone knows if there are any ongoing efforts to get this driver included in mainline? > >> > > >> > I can see that both: > >> > > >> > https://www.lm-technologies.com/product/wifi-usb-adapter-433mbps-lm808/?template=driver > >> > > >> > and > >> > > >> > https://github.com/morrownr/8821au-20210708 > >> > > >> > exists for non-mainline support, so will play a bit with them. But for maintenance etc I'm interested > >> to learn about possible mainline efforts within this area. > >> > >> It seems that the RTW8821AE has never been built or released. If it had been, > >> then extending that driver to the 8821AU would be easy as there would be a file > >> rtw8821a.c that contained all the details of that chip. Without that, there is > >> little that anyone outside Realtek can do. The vendor driver, which is the one > >> in the link you posted, will likely work. > >> > > >rtlwifi can support RTL8821AE/RTL8812AE and basic USB infrastructure, so it looks > >like possible to support 8821AU by rtlwifi. > > > >Ping-Ke > > So since no rtw8821a.c is available, like Larry pointed out in another response. Then it sounds like > investigating > rtlwifi is the best way forward then. Do you mean that it should be possible to get the 8821AU up-and-running > just by > making use of the info in ./drivers/net/wireless/realtek/rtlwifi/rtl8821ae then? Are there any plans to > release a rtl8821au fw through linux-firmware, since > I guess that will be needed also. Yes, rtlwifi/rtl8821ae + rtlwifi/usb.c should be possible to get 8821AU work, and the firmware is the same as 8821AE. Ping-Ke
