Hey Arend Thanks for taking a look. The brcmfmac-wcc module is present on my installation, but I’m not currently loading it. (I only load brcmutil, then brcmfmac.) But, even if I load it, the wlan0 interface still doesn’t show up. In the modules.dep, I see that brcmfmac-wcc should be loaded after brcmutil and brcmfmac. Is that accurate? My installation is somewhat unusual in that I use a custom userland (see https://gokrazy.org/). Thanks Best regards Michael On Wed, 15 Mar 2023 at 00:21, Arend Van Spriel <arend.vanspriel@xxxxxxxxxxxx> wrote: > > On March 14, 2023 11:49:05 PM Michael Stapelberg > <michael+lkml@xxxxxxxxxxxxx> wrote: > > > Of course, find it attached. Thanks. > > Strange. Could it be there is some build config needed to install the > additional kernel modules (brcmfmac-wcc.ko, etc.) on RPi image? > > Regards, > Arend > > > > > On Tue, 14 Mar 2023 at 23:26, Arend Van Spriel > > <arend.vanspriel@xxxxxxxxxxxx> wrote: > >> > >> On March 14, 2023 8:39:05 PM Michael Stapelberg > >> <michael+lkml@xxxxxxxxxxxxx> wrote: > >> > >>> Hey Arend > >>> > >>> I recently bisected a user-reported WiFi breakage on the Raspberry Pi > >>> 3B+ to your commit > >>> https://github.com/torvalds/linux/commit/d6a5c562214f26e442c8ec3ff1e28e16675d1bcf > >>> https://lore.kernel.org/r/20221129135446.151065-4-arend.vanspriel@xxxxxxxxxxxx > >>> > >>> On our end, the issue was reported here: > >>> https://github.com/gokrazy/wifi/issues/3 > >>> > >>> As of Linux 6.2.6, this seems to still be unfixed, so I wanted to > >>> check in and see if you could take a look please? > >> > >> I have a suspicion, but can you provide the kernel .config file so I can > >> see if I am on the right track. > >> > >>> + brcmfmac: brcmf_fwvid_request_module: mod=wcc: failed -2 > >>> + ieee80211 phy0: brcmf_attach: brcmf_fwvid_attach failed > >>> + brcmfmac: brcmf_sdio_firmware_callback: brcmf_attach failed > >> > >> Regards, > >> Arend > > >
