Hi Diederik, changes were made to the Kernel so now each of the files is requested board-specifc first, in your case: brcm/brcmfmac43455-sdio.raspberrypi,3-model-b-plus.bin brcm/brcmfmac43455-sdio.raspberrypi,3-model-b-plus.txt brcm/brcmfmac43455-sdio.raspberrypi,3-model-b-plus.clm_blob and if not existent, falling back to the regular ones: brcm/brcmfmac43455-sdio.bin (symbolic link to cypress/cyfmac43455-sdio.bin) brcm/brcmfmac43455-sdio.txt (not existing -> different topic) brcm/brcmfmac43455-sdio.clm_blob (symbolic link to cypress/cyfmac43455-sdio.clm_blob
currently only the board-specific .txt files (NVRAM settings) are available in the bullseye / bullseye-backports packages, see: https://packages.debian.org/bullseye/all/firmware-brcm80211/filelist based on the popularity of the Raspberry Pi models, the missing symbolic links might be added sooner or later. for the time being you can add them manually: cd /lib/firmware/brcm/ sudo ln -s ../cypress/cyfmac43455-sdio.bin brcmfmac43455-sdio.raspberrypi,3-model-b-plus.bin sudo ln -s ../cypress/cyfmac43455-sdio.clm_blob brcmfmac43455-sdio.raspberrypi,3-model-b-plus.clm_blob (both files, even if your Kernel 6.0.0-3 only requests per-board .bin files) With the recent Kernel version firmware_request_nowarn() is used for the board-specifc files, so those errors shouldn't be logged. -> I will do some testing with fallback files to verify this. In my case it's a bit more complicated involving a bug with space characters in the debian-installer and a nonexistent clm_blob file for brcmfmac43340, see #1030519 commits in the Kernel: per-board bin files ( 2021-08-01 13:26:59 +0300): https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/net/wireless/broadcom/brcm80211/brcmfmac?h=v6.1.9&id=5ff013914c62c493c206d70554cfb1d311ea481a per-board clm_blob files ( 2022-09-19 12:59:33 +0300): https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/net/wireless/broadcom/brcm80211/brcmfmac?h=v6.1.9&id=e263d722941148add195371998ae0f94d79f28af multipe board types + firmware_request_nowarn() (2022-09-19 12:59:33 +0300): https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/net/wireless/broadcom/brcm80211/brcmfmac?h=v6.1.9&id=7cb46e7214179db6d8de21c1b395a9d42efa735e
