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我先做1跟2



~ $ lspci -k

00:00.0 PCI bridge: Broadcom Inc. and subsidiaries BCM2711 PCIe Bridge (rev 10)

01:00.0 USB controller: VIA Technologies, Inc. VL805 USB 3.0 Host Controller (rev 01)

Subsystem: VIA Technologies, Inc. VL805 USB 3.0 Host Controller

Kernel driver in use: xhci_hcd



~ $ lsusb -t

/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M

/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M

    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M



~ $ lsmod | grep brcmfmac

brcmfmac              331776  0

brcmutil               24576  1 brcmfmac

cfg80211              925696  1 brcmfmac



~ $ ip a | grep wlan0

3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000

    inet 192.168.179.196/24 brd 192.168.179.255 scope global dynamic noprefixroute wlan0



~ $ dmesg | grep -i "wlan\|wifi\|firmware\|brcm"

[    0.080336] raspberrypi-firmware soc:firmware: Attached to firmware from 2023-03-17T10:51:33, variant start_x

[    0.084349] raspberrypi-firmware soc:firmware: Firmware hash is 82f3750a65fadae9a38077e3c2e217ad158c8d54

[    1.365496] brcm-pcie fd500000.pcie: host bridge /scb/pcie@7d500000 ranges:

[    1.365545] brcm-pcie fd500000.pcie:   No bus range found for /scb/pcie@7d500000, using [bus 00-ff]

[    1.365634] brcm-pcie fd500000.pcie:      MEM 0x0600000000..0x063fffffff -> 0x00c0000000

[    1.365718] brcm-pcie fd500000.pcie:   IB MEM 0x0000000000..0x00bfffffff -> 0x0400000000

[    1.366749] brcm-pcie fd500000.pcie: PCI host bridge to bus 0000:00

[    1.435239] brcm-pcie fd500000.pcie: link up, 5.0 GT/s PCIe x1 (SSC)

[    9.098556] vc4-drm gpu: bound fe600000.firmwarekms (ops vc4_fkms_ops [vc4])

[    9.278646] brcmfmac: F1 signature read @0x18000000=0x15264345

[    9.306685] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6

[    9.307717] usbcore: registered new interface driver brcmfmac

[    9.728831] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Nov  1 2021 00:37:25 version 7.45.241 (1a2f2fa CY) FWID 01-703fd60

[   13.090756] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled

[  815.621563] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

[  816.897970] ICMPv6: process `dhcpcd' is using deprecated sysctl (syscall) net.ipv6.neigh.wlan0.retrans_time - use net.ipv6.neigh.wlan0.retrans_time_ms instead







~ $ journalctl -u wpa_supplicant -f

-- Journal begins at Mon 2023-12-18 16:58:58 CST. --

 6月 11 00:46:11 raspberrypi systemd[1]: Stopped WPA supplicant.

-- Boot 2f018cb4ef3b40c0b87af7944b084e21 --

 6月 11 00:46:17 raspberrypi systemd[1]: Starting WPA supplicant...

 6月 11 00:46:18 raspberrypi systemd[1]: Started WPA supplicant.

 6月 11 00:46:18 raspberrypi wpa_supplicant[459]: Successfully initialized wpa_supplicant

 6月 11 01:14:15 raspberrypi systemd[1]: Stopping WPA supplicant...

 6月 11 01:14:15 raspberrypi systemd[1]: wpa_supplicant.service: Succeeded.

 6月 11 01:14:15 raspberrypi systemd[1]: Stopped WPA supplicant.

-- Boot d32fff27ac49432a8676db13e5cca1c3 --

 6月 11 01:14:21 raspberrypi systemd[1]: Starting WPA supplicant...

 6月 11 01:14:22 raspberrypi wpa_supplicant[478]: Successfully initialized wpa_supplicant

 6月 11 01:14:22 raspberrypi systemd[1]: Started WPA supplicant.

^C