"Direct firmware load for brcm/brcmfmac43430-sdio.raspberrypi,3-model-b.txt failed with error -2"

起動時に電圧不足となっているRaspberry piを再起動して気になったエラーメッセージがありました。

[    7.411836] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[    7.412142] usbcore: registered new interface driver brcmfmac
[    7.436191] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43430-sdio.raspberrypi,3-model-b.txt failed with error -2
[    7.652810] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[    7.652954] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[    7.655857] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43430/1 wl0: Oct 23 2017 03:55:53 version 7.45.98.38 (r674442 CY) FWID 01-e58d219f

検索してみると

https://askubuntu.com/questions/1252760/how-do-i-activate-the-bluetooth-function-on-my-ubuntu-system-if-theres-no-defa

I finally found a solution that works: sudo hciattach /dev/ttyAMA0 bcm43xx 921600 After running this command everything seemed to be fine.

とのこと

詳細を見る前にアップデートするとファーム更新まで走らないかな？試してみよう