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From:   Fabrizio del Tin <devotedmystic@gmail.com>
Date:   Tue, 23 May 2023 09:28:33 +0200
Message-ID: <CAMzNfvMAgpHV=7HXydrtGJCLG+Mjny4NU6pFP1YjdrPt+Mcc-g@mail.gmail.com>
Subject: Re: Realtek RTL8832CU compatibility
To:     Larry Finger <Larry.Finger@lwfinger.net>
Cc:     linux-wireless@vger.kernel.org, James <bjlockie@lockie.ca>
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I got the common.mk file from here:
https://github.com/lwfinger/rtl8852au/blob/dwa-x1850/common.mk

It seemed to me it could be fit.

It compiled for a long while, then died:

  CC [M]  /usr/src/rtw8852cu/phl/hal_g6/phy/rf/halrf_8852c/halrf_kfree_8852=
c.o
  CC [M]  /usr/src/rtw8852cu/phl/hal_g6/phy/rf/halrf_8852c/halrf_psd_8852c.=
o
  LD [M]  /usr/src/rtw8852cu/8852cu.o
  MODPOST /usr/src/rtw8852cu/Module.symvers
ERROR: modpost: "dump_radar_detect_status"
[/usr/src/rtw8852cu/8852cu.ko] undefined!
ERROR: modpost: "rtw_dfs_rd_hdl" [/usr/src/rtw8852cu/8852cu.ko] undefined!
ERROR: modpost: "rtw_chset_search_ch" [/usr/src/rtw8852cu/8852cu.ko] undefi=
ned!
ERROR: modpost: "dump_chinfos" [/usr/src/rtw8852cu/8852cu.ko] undefined!
ERROR: modpost: "rtw_rfctl_dfs_init" [/usr/src/rtw8852cu/8852cu.ko] undefin=
ed!
ERROR: modpost: "get_ch_type_from_str" [/usr/src/rtw8852cu/8852cu.ko] undef=
ined!
ERROR: modpost: "rtw_5ghz_a_channels" [/usr/src/rtw8852cu/8852cu.ko] undefi=
ned!
ERROR: modpost: "rtw_ap_check_ecsa_allow"
[/usr/src/rtw8852cu/8852cu.ko] undefined!
ERROR: modpost: "rtw_chset_is_bchbw_non_ocp"
[/usr/src/rtw8852cu/8852cu.ko] undefined!
ERROR: modpost: "rtw_chset_search_bch" [/usr/src/rtw8852cu/8852cu.ko] undef=
ined!
WARNING: modpost: suppressed 41 unresolved symbol warnings because
there were too many)
make[2]: *** [scripts/Makefile.modpost:136:
/usr/src/rtw8852cu/Module.symvers] Error 1
make[1]: *** [Makefile:1977: modpost] Error 2
make: *** [Makefile:705: modules] Error 2

Fabrizio

On Tue, May 23, 2023 at 9:16=E2=80=AFAM Fabrizio del Tin
<devotedmystic@gmail.com> wrote:
>
> Hello Larry,
> great news really!
>
> Actually, the file common.mk is missing, so it fails.
>
> #rm -f .symvers.8852cu
> make ARCH=3Dx86_64 CROSS_COMPILE=3D -C /lib/modules/6.3.3-arch1-1/build
> M=3D/usr/src/rtw8852cu  modules
> /usr/src/rtw8852cu/Makefile:654: /usr/src/rtw8852cu/common.mk: No such
> file or directory
> make[2]: *** No rule to make target '/usr/src/rtw8852cu/common.mk'.  Stop=
.
> make[1]: *** [Makefile:2025: /usr/src/rtw8852cu] Error 2
> make: *** [Makefile:705: modules] Error 2
>
> Fabrizio
>
> On Tue, May 23, 2023 at 7:45=E2=80=AFAM Larry Finger <Larry.Finger@lwfing=
er.net> wrote:
> >
> > On 5/22/23 10:35, Fabrizio del Tin wrote:
> > > Thank you Larry, that would be great.
> > >
> > > I was just advised to return the dongle, but I still keep it.
> >
> > The RTW8832CU is a variant of the RTW8852CU. I received a copy of the d=
river
> > from Realtek and fixed it to build on kernels thru 6.4.0. The driver gi=
ves
> > reasopnable performance (350 Mpps up and down) when connected to the 5G=
 band of
> > my ax1500 router. This router does not support the 6G band, thus I cann=
ot say
> > whether it would work for that 3rd band.
> >
> > To get a copy, do the following:
> >
> > git clone https://github.com/lwfinger/rtw8852cu.git
> > cd rtw8852cu
> > make
> > sudo make install
> >
> > I suggest that you install the modeswitch package for your distro. That=
 will
> > automatically eject the CDROM device and enable the wifi interface.
> >
> > I will be making improvements in the coming days, but I wanted you to h=
ave
> > access as soon as possible.
> >
> > Larry
> >